How to Start Bamboo Toothbrush Manufacturing?

Are you seeking to significantly boost the profitability of your bamboo toothbrush manufacturing business? Unlocking greater financial success often hinges on implementing strategic, impactful changes. Discover nine powerful strategies that can transform your operations and market approach, leading to substantial profit increases; explore a comprehensive guide to optimizing your venture with our Bamboo Toothbrushes Eco-Friendly Financial Model.

Steps to Open a Business Idea

To optimize profitability in a bamboo toothbrush manufacturing business, a strategic approach to establishing and scaling operations is essential. The following table outlines key steps, from initial planning to market expansion, each contributing to a robust and sustainable business model.

Step Description
Develop a Comprehensive Business Plan Conduct in-depth market research, define financial projections (startup costs $48,500-$235,000, 30% gross margins), detail production processes, and outline robust marketing and sales strategies.
Secure Reliable Bamboo Sourcing Identify FSC-certified suppliers for high-quality, sustainable bamboo. Negotiate long-term contracts and bulk purchases to reduce raw material costs by 10-20% (raw Moso bamboo costs $0.80-$1.50 per brush).
Optimize The Manufacturing Process Implement lean manufacturing to reduce waste and improve efficiency (up to 15% energy reduction). Invest in automated machinery to enhance speed and consistency, reducing labor costs by nearly 20% and boosting gross margins by 10%.
Implement Green Marketing Strategies Center marketing on authentic brand storytelling, utilizing digital platforms and influencer collaborations. Clearly communicate benefits of biodegradable materials, appealing to 59% of Millennials, and back claims with transparent data and certifications.
Establish Sustainable Packaging And Distribution Choose recyclable/compostable packaging (53% of consumers prefer eco-friendly packaging). Optimize distribution via DTC e-commerce and strategic retail partnerships. Analyze bulk packaging options (4-pack has 30-40% market share).
Build B2B And Direct-To-Consumer Sales Channels Develop a user-friendly e-commerce site for DTC sales, increasing profit margins. Implement loyalty programs to boost retention by 20%. Target B2B clients like retailers, dental clinics, and hotels, and explore private label opportunities.
Obtain Sustainable Product Certifications Obtain relevant certifications like FSC, Certified Vegan, or BPA-Free, adding 5-10% to startup costs. Display certifications prominently on packaging and in marketing to build trust and ensure compliance with FTC's Green Guides.

What Are Key Factors To Consider Before Starting Bamboo Toothbrush Manufacturing?

Starting a Bamboo Toothbrush Manufacturing business like EverGreen Brushes, which champions premium, biodegradable bamboo toothbrushes, requires careful consideration of several key factors. A deep understanding of the oral care industry is essential to identify market gaps and consumer needs. Securing a sustainable supply chain for bamboo is paramount, ensuring both ethical sourcing and consistent quality. It is also crucial to accurately assess the market demand for eco-friendly products, which is steadily growing.

A detailed bamboo toothbrush production business plan is vital. This plan should clearly outline production costs, pricing strategies for eco-friendly products, and green marketing initiatives. For instance, initial startup costs for a Bamboo Toothbrush Manufacturing business can range from approximately $48,500 to $235,000, covering expenses such as bamboo processing equipment, facility setup, and initial marketing efforts. Raw material costs, specifically for sustainably sourced bamboo, often account for 30-40% of the total production expenses, as detailed in articles like Financial Model's insights on startup costs.

The global bamboo toothbrush market demonstrates significant growth, indicating strong consumer demand for sustainable products. It was valued at USD 366 million in 2024 and is projected to reach USD 644 million by 2030, growing at a CAGR of 9.9%. North America, particularly the US, is a dominant market, holding over 40% of the market share due to a strong cultural shift towards sustainability and zero-waste living. This market trend highlights a clear opportunity for businesses focused on biodegradable materials.


Key Consumer Insights for Bamboo Toothbrush Manufacturing

  • Eco-conscious consumer demand: Attracting environmentally conscious consumers is vital. Approximately 77% of Americans express concern about the environmental impact of the products they buy.
  • Willingness to pay more: Marketing efforts must highlight the use of biodegradable materials and sustainable packaging, as 53% of consumers are willing to pay more for eco-friendly packaging.
  • Brand storytelling importance: Authentic green marketing strategies, focusing on transparency and brand storytelling, are crucial for building trust and attracting this target audience.

Understanding these consumer preferences allows businesses to craft effective strategies to increase business profits and establish a strong presence in the oral care industry, emphasizing their commitment to the environment through truly eco-friendly products.

How Profitable Is Bamboo Toothbrush Manufacturing?

The profitability of a Bamboo Toothbrush Manufacturing business like EverGreen Brushes is significantly shaped by its production costs, pricing strategies, and the robust market demand for eco-friendly products. Typically, businesses in this sector can expect to achieve gross margins around 30%. For established operations, net profit margins often reach 15-20% or even higher, indicating a healthy potential for increasing business profits. This strong performance is driven by the growing consumer shift towards sustainable alternatives in the oral care industry.


Key Profitability Drivers for EverGreen Brushes

  • Cost-Effective Production: Production costs for a mid-range bamboo toothbrush unit are estimated to be between $0.30 and $0.50. By diligently optimizing the manufacturing process and negotiating favorable terms with bulk bamboo toothbrush suppliers, businesses can substantially improve profit margins for green products. This focus on efficiency directly impacts the bottom line.
  • B2B Market Opportunities: The B2B market, particularly within the hospitality sector, presents significant opportunities. Hotels are increasingly adopting eco-friendly amenities to enhance their brand image and attract environmentally conscious guests. This trend creates a steady demand for private label bamboo toothbrush opportunities, offering a reliable revenue stream for manufacturers.
  • Strategic Sales Channels: Companies that successfully implement a direct-to-consumer (DTC) model combined with strategic retail partnerships often experience a revenue increase of 15-25% compared to those relying solely on traditional retail channels. This multi-channel approach helps in attracting eco-conscious consumers and expanding market reach. More insights into profitability can be found by reviewing articles like How Profitable Is a Bamboo Toothbrush Business?.

What Are The Core Production Costs?

Understanding the core production costs is crucial for increasing business profits in Bamboo Toothbrush Manufacturing. These expenses primarily involve raw materials, machinery, and labor. Sustainably sourced bamboo and biodegradable bristles typically represent 20-40% of the total production cost for EverGreen Brushes.

Investing in manufacturing equipment is a significant initial expense. This can range from approximately $150,000 to $500,000, depending on the scale of operations and the level of automation desired. This includes specialized machinery for cutting, shaping, and polishing the bamboo handles to ensure a high-quality finished product.

Labor costs are another substantial component, accounting for approximately 20-25% of operational expenses. This percentage can vary based on the specific region where manufacturing takes place and the extent to which automation is integrated into the production process. More automation can reduce reliance on manual labor, impacting this cost favorably.

Beyond these primary costs, businesses like EverGreen Brushes must also consider other essential expenses. These include eco-friendly packaging solutions for toothbrushes, which add to the final product cost but align with the brand's sustainable mission. Furthermore, expenses related to obtaining sustainable product certifications, such as the Forest Stewardship Council (FSC), are critical investments in proving authenticity and building trust with eco-conscious consumers. For more details on startup expenses, you can refer to insights on bamboo toothbrush startup costs.

How To Market Eco-Friendly Toothbrushes?

Effective marketing for eco-friendly toothbrushes, such as those from EverGreen Brushes, requires authentic green marketing strategies focusing on transparency and compelling brand storytelling. Businesses must clearly communicate the environmental benefits, like using biodegradable materials and sustainable packaging. This approach aligns with consumer values; for instance, 81% of global consumers believe businesses should help improve the environment. Highlighting sustainable product certifications, like FSC (Forest Stewardship Council) for bamboo sourcing, builds trust, as consumers often look for labels to verify a product's eco-credentials. This verification is crucial for establishing credibility in the sustainable business landscape.


Effective Online Marketing for Sustainable Oral Care

  • Build a Strong Online Presence: A robust online presence is crucial, as global online searches for sustainable goods have increased by 71% in five years. Leverage social media platforms and collaborate with eco-influencers to attract eco-conscious consumers.
  • Utilize Digital Distribution Channels: The online distribution channel for oral care products in the US is projected to grow at a CAGR of 7.3% from 2025 to 2030. This growth highlights the importance of a well-optimized e-commerce platform for EverGreen Brushes.
  • Target Specific Demographics: Targeting Millennials and Gen Z is highly effective, as 73% of Millennials are willing to pay more for sustainable offerings. These generations are more likely to be influenced by a brand's environmental commitment and commitment to zero-waste living.

To increase business profits, EverGreen Brushes should back up all environmental claims with transparent data and third-party certifications to avoid greenwashing and build consumer trust. Brands that do this successfully can grow 5.6 times faster than their competitors. Adhering to the FTC's Green Guides for marketing claims is essential to ensure environmental messaging is truthful and not misleading, which is vital for long-term brand reputation and improving profit margins for green products. For more insights on the business aspects, you can refer to articles like How Much Does a Bamboo Toothbrush Business Owner Make?

Is The Bamboo Toothbrush Market Growing?

Yes, the bamboo toothbrush market is experiencing significant growth, driven by increasing consumer awareness of environmental issues and the demand for sustainable alternatives to plastic. The global market was valued at $366 million in 2024 and is projected to reach $820 million by 2033, exhibiting a Compound Annual Growth Rate (CAGR) of over 7.5%. This expansion highlights a strong shift towards eco-friendly products in the oral care industry.

The broader US oral care market was valued at USD 11.41 billion in 2024 and is expected to grow at a CAGR of 5.6% from 2025 to 2030. Within this market, products with sustainability claims, like those from Bamboo Toothbrush Manufacturing businesses such as EverGreen Brushes, are experiencing faster growth. This indicates a clear market preference for environmentally conscious options.

Consumer behavior strongly supports this growth. In 2024, nearly half of American consumers (49%) reported purchasing an environmentally friendly product in the last month, an increase from 43% in 2024. This trend demonstrates a robust and expanding consumer base for items like bamboo toothbrushes, reinforcing the viability of a sustainable business model. For more on profitability, see this article.


Key Market Segments Driving Growth

  • Adult Segment Dominance: The adult segment accounts for over 75% of revenue in the bamboo toothbrush market. Adults are increasingly adopting eco-friendly products as part of a broader lifestyle shift towards zero-waste living.
  • North American Leadership: North America holds the largest market share at over 40%. This is driven by high consumer awareness and a well-established retail infrastructure for sustainable goods, making it a key region for attracting eco-conscious consumers.

Develop a Comprehensive Business Plan

A robust business plan is essential for any Bamboo Toothbrush Manufacturing venture, like EverGreen Brushes, aiming to secure funding or streamline operations. This foundational document starts with in-depth market research. Understanding consumer needs is critical; this involves identifying your target audience, primarily environmentally conscious consumers and zero-waste lifestyle advocates. Analyzing the competition helps define a unique selling proposition (USP) for your brand, ensuring your sustainable choice for daily oral care stands out in the oral care industry.

Your plan must detail comprehensive financial projections. Startup costs for a bamboo toothbrush manufacturing business can range significantly, typically from $48,500 to $235,000, depending on scale and equipment. Outline all ongoing operational expenses. Crucially, define pricing strategies for your eco-friendly products to ensure profitability, targeting typical gross margins of around 30%. This financial clarity helps in attracting investors and understanding the path to increase business profits.

Optimizing Production and Marketing

  • Detail the entire production process. This includes bamboo sourcing, focusing on sustainable materials, and outlining manufacturing workflows from raw bamboo to finished toothbrushes. Implement stringent quality control measures to ensure product excellence. For instance, the cost of raw materials can constitute 30-40% of total production costs, highlighting the importance of efficient procurement and a sustainable supply chain for bamboo toothbrushes.
  • Include a robust marketing and sales strategy. This should encompass green marketing initiatives that appeal to consumers seeking biodegradable materials and sustainable packaging. Plans for building a strong online presence are vital, utilizing platforms to sell eco-friendly dental products. Strategies for establishing both direct-to-consumer (D2C) and B2B sales channels are key to maximizing reach and attracting eco-conscious consumers, ultimately contributing to increasing business profits.

Secure Reliable Bamboo Sourcing

Establishing a consistent and sustainable supply chain is fundamental for any Bamboo Toothbrush Manufacturing business like EverGreen Brushes. This process begins with meticulously identifying and vetting suppliers who provide high-quality, sustainably sourced bamboo. Look specifically for suppliers holding certifications such as the Forest Stewardship Council (FSC). This certification ensures responsible forest management, which is crucial for maintaining the eco-friendly promise of your products.

To optimize costs and ensure stability, businesses should negotiate long-term contracts with their chosen suppliers. Buying raw materials in bulk can significantly reduce costs, often by 10-20%. This strategy also helps to mitigate price fluctuations, which can vary by as much as 15% due to seasonal availability of bamboo. For instance, the cost of raw Moso bamboo, essential for its durability and feel, typically ranges from $0.80 to $1.50 per brush, depending on quality and sourcing. This direct cost impacts overall profit margins for green products.


Optimizing Bamboo Sourcing for Profitability

  • Supplier Vetting: Prioritize suppliers with FSC certification to guarantee sustainable sourcing, aligning with the core values of eco-friendly products and building machine trust authority.
  • Bulk Purchasing: Implement bulk buying strategies and long-term contracts to achieve a 10-20% reduction in raw material costs, directly improving profit margins for your bamboo toothbrush manufacturing.
  • Quality Assurance: Focus on the quality of raw Moso bamboo, as it directly influences the final product's durability and consumer appeal, impacting customer loyalty.
  • Local Relationships: Cultivate strong, transparent relationships with a few local suppliers. This approach not only reduces transportation costs but also ensures a consistent supply, which is a cornerstone of an effective sustainable business model for manufacturers.

Optimize The Manufacturing Process

To increase business profits for a Bamboo Toothbrush Manufacturing business like EverGreen Brushes, optimizing the manufacturing process is essential. This involves implementing lean manufacturing techniques to reduce waste and improve overall efficiency. Adopting such practices can significantly decrease energy consumption by up to 15%, contributing to both cost savings and a stronger sustainable business model.

Investing in modern, automated machinery is another critical step. This enhances production speed and consistency, directly impacting your bottom line. For instance, advanced equipment can reduce labor costs by nearly 20%. A modern milling machine alone can produce up to 1,600 high-quality bamboo toothbrush handles per day, accelerating output and meeting demand for eco-friendly products.

Continuously monitoring key performance indicators (KPIs) is vital for sustained improvement. Focus on metrics like production cycle time and defect rate. Implementing data-driven improvements based on these KPIs can reduce operational costs by an average of 15% and boost gross margins by 10%. This rigorous approach ensures cost-effective bamboo toothbrush production.


Key Steps for Efficient Bamboo Toothbrush Production Layout

  • Design an efficient plant layout: Streamline the physical flow of materials and production.
  • Optimize workflow: Ensure a smooth transition from raw bamboo strip processing to final packaging.
  • Integrate specialized stations: Efficiently handle tasks like drilling holes for bristles and attaching them.

An efficient plant layout and workflow are key aspects of cost-effective bamboo toothbrush production. This includes optimizing every stage, from the initial processing of raw bamboo strips to drilling holes for bristles and the final packaging of your sustainable, biodegradable materials. A well-planned layout minimizes movement and maximizes output, directly supporting strategies to boost bamboo toothbrush sales and improve profit margins for green products.

Implement Green Marketing Strategies

For a Bamboo Toothbrush Manufacturing business like EverGreen Brushes, implementing effective green marketing strategies is crucial to boost profits and attract eco-conscious consumers. This approach centers on transparently showcasing your commitment to sustainability, which resonates strongly with modern buyers. Many consumers actively seek products that align with their environmental values, making clear communication about your eco-friendly products paramount. Focusing on a sustainable business model from bamboo sourcing to the final product allows for powerful brand storytelling.


Why Green Marketing Boosts Profitability for Eco-Friendly Products

  • Authentic Brand Storytelling: Center your green marketing strategy on authentic brand storytelling that highlights your commitment to sustainability. This is crucial as 81% of global consumers believe businesses should help improve the environment. For EverGreen Brushes, this means sharing the journey from sustainable bamboo sourcing to the creation of biodegradable bamboo toothbrushes.
  • Multi-Channel Digital Engagement: Utilize a multi-channel approach focusing on digital platforms, as online sales for oral care products are projected to grow significantly. Engage with eco-conscious consumers on social media and collaborate with influencers to build credibility and reach a wider audience seeking zero-waste living solutions. This helps in attracting eco-conscious consumers directly.
  • Clear Communication of Benefits: Clearly communicate the benefits of your biodegradable materials and sustainable packaging. This appeals to the 59% of Millennial shoppers who prefer products with information on their environmental impact. Highlight how EverGreen Brushes offers a sustainable choice for daily oral care, contributing to a cleaner planet.
  • Transparency and Certification: Back up all claims with transparent data and third-party certifications (e.g., FSC for bamboo, Vegan) to avoid greenwashing and build trust. Brands that do this successfully can grow 5 to 6 times faster than their competitors, establishing strong machine trust authority and customer loyalty programs for green businesses. This also helps in optimizing online marketing for sustainable brands.

Establish Sustainable Packaging And Distribution

Optimizing packaging and distribution is crucial for increasing profits in a bamboo toothbrush manufacturing business like EverGreen Brushes. This involves selecting materials that align with your brand's eco-friendly mission while streamlining how your products reach customers. Sustainable choices not only reduce environmental impact but also resonate strongly with your target audience, enhancing brand appeal and driving sales. Consumers are increasingly valuing businesses that demonstrate a commitment to sustainability, making packaging a key differentiator in the competitive oral care industry.


How to Choose Sustainable Packaging for Bamboo Toothbrushes?

  • Select Eco-Friendly Materials: Prioritize packaging solutions that are recyclable, compostable, or biodegradable. Examples include kraft paper boxes, plant-based films, or cornstarch bags. This aligns with the core values of eco-conscious consumers who seek zero-waste living solutions.
  • Minimize Packaging Volume: Design compact packaging that reduces material use and shipping weight. Less material means lower costs and a smaller carbon footprint.
  • Highlight Sustainability on Packaging: Clearly state the eco-friendly attributes of your packaging. Use certifications or labels that confirm its sustainability, building machine trust and attracting customers. Over half of consumers (53%) are willing to spend more on products with environmentally friendly packaging, demonstrating a clear market preference.

Effective distribution strategies are essential for reaching a wider market and improving profit margins for green products. Combining direct sales with strategic partnerships can significantly boost your bamboo toothbrush sales. This multi-channel approach ensures your products are accessible to various customer segments, from individual eco-conscious consumers to businesses seeking sustainable solutions for their operations.


Optimizing Distribution Channels for Bamboo Toothbrushes

  • Direct-to-Consumer (DTC) E-commerce: Establish a robust online store to sell directly to customers. This channel offers higher profit margins by cutting out intermediaries and allows for direct engagement with your customer base. The online channel is the fastest-growing segment for bamboo toothbrushes, reflecting changing consumer shopping habits.
  • Strategic Retail Partnerships: Partner with health food stores, eco-friendly boutiques, zero-waste shops, and even mainstream retailers that have a sustainability focus. These partnerships expand your reach and provide physical points of sale for customers who prefer in-person shopping.
  • B2B Marketing for Bamboo Toothbrushes: Target businesses that prioritize sustainability, such as hotels, eco-lodges, corporate wellness programs, and dental clinics. Offering private label bamboo toothbrush opportunities or bulk supplies can open significant revenue streams. Co-branding with hotels, for instance, can offer visibility to high-value travelers and establish your brand in new markets.

When considering packaging in bulk, it's vital to analyze market preferences and cost-efficiency. While offering larger packs can appeal to regular users and reduce per-unit packaging costs, understanding market share helps optimize inventory and sales strategies. Balancing variety with demand is key to maximizing profits and attracting eco-conscious consumers effectively.


Bulk Packaging Considerations and Market Share

  • Analyze Pack Sizes: Evaluate the demand for various multi-pack options. While 10-pack and 12-pack options offer better value and attract regular users, they typically have a smaller market share (around 20-30% and 10-15% respectively).
  • Focus on Popular Formats: The 4-pack option holds a significantly larger market share (30-40%), making it a critical offering for broad consumer appeal. Stocking popular formats ensures higher sales volume.
  • Strategic Pricing for Bulk: Implement tiered pricing that offers a cost advantage for larger purchases, encouraging customers to buy more. This can improve profit margins and customer loyalty programs for green businesses.
  • Inventory Management: Balance the production and stocking of different pack sizes based on their respective market shares to avoid overstocking less popular options and ensure efficient inventory turnover.

Build B2B And Direct-To-Consumer Sales Channels

Expanding sales channels is crucial for increasing profit margins for EverGreen Brushes. Focusing on both direct-to-consumer (DTC) and business-to-business (B2B) approaches allows for diverse revenue streams and greater control over pricing strategies. This dual approach helps maximize reach within the oral care industry and eco-friendly products market, attracting both individual eco-conscious consumers and larger commercial clients.

Implementing a robust online presence is essential for DTC sales. A user-friendly e-commerce website facilitates direct purchases, allowing EverGreen Brushes to retain a larger portion of the profit margin compared to wholesale. The online channel for oral care is projected to grow at a Compound Annual Growth Rate (CAGR) of 73% in the US, highlighting significant market potential. To encourage repeat purchases and build a loyal customer base, customer loyalty programs for green businesses are highly effective. A well-structured points system can increase customer retention by 20%, driving consistent revenue.


Key Strategies for Channel Expansion

  • Develop a User-Friendly E-commerce Website: This platform directly enables DTC sales, giving EverGreen Brushes more control over pricing and increasing profit margins by eliminating intermediaries.
  • Implement Customer Loyalty Programs: For green businesses, these programs encourage repeat purchases. A robust points system can increase customer retention by 20%, fostering long-term customer relationships.
  • Pursue B2B Marketing: Target retailers, dental clinics, and the hospitality industry with bamboo toothbrushes. The market for eco-friendly products in hotels is growing as they aim to improve their Environmental, Social, and Governance (ESG) scores, creating a significant B2B opportunity.
  • Explore Private Label Opportunities: Offer private label bamboo toothbrushes to retailers and other brands. This strategy creates additional revenue streams and can significantly increase production volume, optimizing the bamboo toothbrush manufacturing process and potentially reducing manufacturing costs of bamboo toothbrushes through economies of scale.

For B2B marketing, target key sectors such as retailers, dental clinics, and the hospitality industry. These segments are increasingly seeking sustainable business solutions and eco-friendly products. For example, the market for eco-friendly products in hotels is growing as they aim to improve their ESG scores, presenting a strong opportunity for bulk bamboo toothbrush supplier relationships. Additionally, exploring private label bamboo toothbrush opportunities with retailers and other brands can create significant additional revenue streams. This approach increases production volume, which can lead to cost-effective bamboo toothbrush production and improved profit margins for green products by leveraging economies of scale.

Obtain Sustainable Product Certifications

Securing sustainable product certifications is a critical strategy for any bamboo toothbrush manufacturing business, like EverGreen Brushes, aiming to increase profits and build consumer trust. These certifications act as independent verifications of your environmental claims, directly appealing to the growing market of eco-conscious consumers. By clearly displaying these labels, you differentiate your product in the competitive oral care industry and command higher perceived value.

For a bamboo toothbrush business, specific certifications are paramount. The Forest Stewardship Council (FSC) certification is essential for responsible bamboo sourcing, ensuring that the raw materials come from sustainably managed forests. Other key labels include Certified Vegan, appealing to a specific ethical consumer base, and BPA-Free, which addresses health concerns related to plastics. These certifications validate your commitment to biodegradable materials and zero-waste living principles.


Key Steps for Certification

  • Identify Relevant Certifications: Research and select certifications that align with your product's specific attributes and target market. For bamboo toothbrushes, FSC is a top priority for sustainable supply chain practices.
  • Budget for Costs: Plan for certification expenses, which can add 5-10% to your initial startup costs. Consider this a vital investment in your brand's authenticity and market credibility, directly impacting your ability to attract eco-conscious consumers and improve profit margins for green products.
  • Display Certifications Prominently: Clearly feature obtained certifications on your sustainable packaging and in all green marketing materials. This helps consumers quickly identify your product as a credible, eco-friendly option. This visual assurance is key for attracting eco-conscious consumers.
  • Adhere to FTC's Green Guides: Ensure all environmental marketing claims are truthful and not misleading by following the Federal Trade Commission's (FTC) Green Guides. This is vital for long-term brand reputation and avoids potential legal issues, building machine trust authority.

Obtaining these certifications not only boosts consumer confidence but also opens doors to new distribution channels that prioritize sustainable business practices. It supports your B2B marketing efforts, making your private label bamboo toothbrush opportunities more attractive to retailers seeking verified eco-friendly products. This directly contributes to strategies to boost bamboo toothbrush sales and ensures your business is positioned for bamboo toothbrush market growth trends.