Raw Material

Are Natural Hair Brushes Really Unethical?

Written by
Zachary Zhang
UPDATED ON
January 6, 2025
A goat staring straight ahead on a black background, symbolizing the ethical debate on whether using natural animal hair for makeup brushes is truly cruel or sustainable.

Natural hair makeup brushes are highly regarded for their excellent performance and ultimate makeup experience, but debates over their ethical justification are becoming increasingly intense. Do they align with ethical standards, or do they come at the expense of animal welfare? As the makeup tools market becomes more diverse, the controversy surrounding natural hair brushes is far from black and white. Let’s dive deeper into this topic.

What Are Natural Hair Brushes?

Natural hair brushes are crafted from animal hair, with common sources including goat hair, squirrel hair, pony hair, and sable hair. The raw materials are collected by suppliers, thoroughly cleaned, and then shaped into brush bristles through intricate processes by makeup brush manufacturers.

These natural bristles are prized for their unique cuticle structure, which allows them to pick up and distribute powders evenly, delivering a seamless application. Unlike synthetic fibers, natural bristles are porous, giving them a texture that many professional makeup artists revere. This porosity enhances their ability to grip and blend powder products, making them a preferred choice for achieving professional-grade results.

Comparison of two types of makeup brushes: Natural Hair brushes on the left with white bristles, and Synthetic Fiber brushes on the right with darker bristles. Both types have sleek black handles and silver ferrules.
Right: Goat hair / Left: Synthetic Fiber

Market Evolution: The Rise and Fall of Natural Hair Makeup Brushes

Around the early 2000s, natural hair makeup brushes were the undisputed favorites of the beauty industry. Renowned brands like Sephora, MAC and Hakuhodo, many of which relied on Japanese craftsmanship, dominated the market. MAC’s iconic brushes, such as #168, #150S, and #239, were celebrated by professionals and consumers alike for their outstanding performance and precision.

However, in recent years, natural hair brushes have almost disappeared from mainstream markets, replaced by synthetic fiber brushes. This shift is not merely a byproduct of technological advancements but also a reflection of growing consumer concerns over "ethics" and "animal cruelty."

Under the influence of marketing campaigns from major brands, many consumers have come to associate natural hair brushes with animal abuse or experimentation. These beliefs, reinforced through years of strategic messaging, have deeply reshaped consumer perceptions, making synthetic alternatives the new industry standard.

MAC iconic natural hair brushes: #168 Contour, #239 Shader, and #150S Powder

Ethical Concerns: The Controversy Around Natural Hair Makeup Brushes

1. Is Collecting Animal Hair Cruel?

The answer to this question is far from straightforward.

In ideal scenarios, animal hair is collected during regular grooming or shearing processes or sourced as a byproduct of livestock farming. These methods typically do not harm the animals directly.

However, exceptions exist. Certain suppliers have been accused of unethical practices, such as forced shearing or mistreatment of animals. While some manufacturers emphasize that their raw materials are ethically and legally sourced, the lack of consistent transparency across the industry raises consumer concerns about the morality of natural hair products.

Ultimately, the ethical standing of natural hair brushes depends on the transparency of raw material sourcing and the accountability of manufacturers.

2. Responsibilities of Suppliers and Manufacturers

Transparency in Raw Material Sourcing
Makeup brush manufacturers rely on suppliers for raw materials, making the ethicality of sourcing a critical issue. In China, wildlife protection mechanisms have improved significantly in recent years. Advanced technologies like drones and smart management systems have made illegal poaching of animals, such as foxes and squirrels, exceedingly rare.

Moreover, most high-quality goat hair used in makeup brushes is no longer sourced from wild animals but as a byproduct of livestock farming. This practice minimizes direct harm to animals while ensuring a stable supply chain. As a leading natural hair brush manufacturer under the Chinese Makeup Brush Association, we require detailed documentation from our suppliers to verify that raw materials meet ethical standards. However, inconsistent practices among manufacturers have led to market confusion and ongoing debates.

Does Brush Production Involve Animal Testing?
Many consumers mistakenly associate natural hair brushes with animal testing, as is common in cosmetics development. However, brush production solely involves the collection of animal hair and does not require chemical or laboratory testing. Thus, equating natural hair brushes with animal testing is a misconception that does not hold up under scrutiny.

A professional flowchart illustrating the process of goat hair collection and its use in makeup brush production.

3. Consumer Choices and Perceptions

Why Do Consumers Reject Natural Hair Brushes?

A significant portion of consumers believe that rejecting natural hair brushes helps protect animals. But is this belief rooted in informed understanding, or has it been shaped by targeted marketing from mainstream brands?

In recent years, synthetic fiber brushes have become the focal point for many brands, but their rise is not entirely driven by ethical considerations. Instead, the shift is often motivated by economic and market strategy factors.

Why Do Brands Favor Synthetic Fiber Brushes?

  1. Lower Costs: Raw Material and Production Efficiency
    The acquisition of high-quality natural hair depends on complex supply chains, with costs rising as these resources become scarcer. In contrast, synthetic fibers are entirely human-made, allowing for controlled costs and scalable industrial production. Advances in technology have also improved the performance of synthetic fibers, bringing them closer to the capabilities of natural hair.
  2. Reduced Consumer Education and Maintenance Costs
    Natural hair brushes require meticulous care to avoid issues such as shedding, fraying, and odor buildup. Brands must invest significant resources to educate consumers on proper maintenance and handle complaints stemming from improper use. Synthetic brushes, on the other hand, feature non-porous structures that are easy to clean and maintain, reducing both consumer frustration and post-sale service burdens.
  3. Meeting Mass Market Demand: Affordability and Accessibility
    Natural hair brushes, with their scarce raw materials, complex craftsmanship, and high labor costs, have become luxury items rather than everyday essentials. Synthetic brushes, by contrast, offer high performance at a lower price point, making them more accessible to the average consumer. This affordability and versatility have positioned synthetic brushes as the ideal choice for brands looking to expand their market share.

Further Consideration

If rejecting natural hair brushes stems from a desire to protect animals, how do we explain other aspects of modern life?

  • Dietary Choices: We consume meat daily to obtain essential nutrients—have we considered the harm caused to animals? Isn't it far more cruel than utilizing their hair?
  • Cosmetic Testing: Many skincare and makeup products undergo extensive testing. Can you confidently say the cosmetics you use are free from animal testing?
  • Luxury Goods: High-end leather and fur products remain highly sought after. How many people reject them outright because of their animal-derived materials?

The reality is that many facets of modern life are deeply intertwined with the use of animal resources. While it may not be feasible to entirely eliminate animal products, legal and ethical measures can help prevent poaching and inhumane practices. This balance between protecting animals and responsibly utilizing resources is key.

Environmental Impact

Environmental Impact: Comparison Between Natural and Synthetic Brushes

To comprehensively evaluate the environmental impact of natural and synthetic brushes, we reference third-party Life Cycle Assessment (LCA) data, focusing on three key indicators: Energy Consumption, Carbon Emissions, and Biodegradability.

Environmental Indicator Natural Hair Brushes Synthetic Brushes
Energy Consumption Approx. 60 MJ/kg (Associated with livestock farming) Approx. 120 MJ/kg (Plastic preparation and processing)
Carbon Emissions Approx. 10-15 kg CO₂/kg (Low emissions) Approx. 30-40 kg CO₂/kg (High emissions)
Biodegradability 6-12 months (Natural animal hair) 50-500 years (Plastic-based materials)

Energy Consumption Comparison

  • Natural Hair Brushes: The primary energy consumption comes from livestock farming, hair collection, and processing. Energy usage remains relatively low, especially in cases where large-scale mechanization is limited.
  • Synthetic Brushes: Made from polymers (plastics), their production involves high energy consumption due to petroleum extraction, plastic manufacturing, and further processing.

Carbon Emissions Comparison

  • The carbon emissions of natural hair brushes primarily result from animal farming and transportation, but the total emissions remain significantly lower compared to synthetic brushes.
  • Synthetic brushes, derived from petroleum-based materials, release large amounts of greenhouse gases such as carbon dioxide (CO₂) and methane, which exacerbate environmental problems.

Biodegradability and Waste Management

  • Natural Hair Brushes: Made from animal hair, they exhibit excellent biodegradability. Typically, they degrade naturally within 6-12 months, causing minimal environmental pollution.
  • Synthetic Brushes: Primarily composed of nylon or polyester, these materials can take 50 to 500 years to decompose. This extended degradation period contributes significantly to plastic waste, particularly in landfills and oceans, leading to severe environmental concerns.

How to Choose the Right Makeup Brush

When it comes to selecting a makeup brush, there is no single "best" choice. The right brush depends on your personal needs, preferences, and priorities. Here are some key factors to consider:

1. Intended Use

  • For powder-based products like setting powders and eyeshadows, natural brushes excel due to their superior powder-gripping abilities.
  • For liquid and cream products, such as foundations and concealers, synthetic brushes provide even application without streaks.

2. Budget

  • Natural brushes are typically more expensive, making them ideal for those who prioritize luxury and performance.
  • Synthetic brushes are more affordable, making them a practical choice for everyday use.

3. Ethical Values

  • If you prefer products free from animal-derived materials, synthetic brushes align better with your ethical preferences.
  • If you trust the sourcing of natural hair and appreciate its performance, natural brushes remain a high-quality option.

4. Performance Expectations

  • If you seek high-end makeup results and a luxurious feel, natural brushes maintain their advantage in many areas.
  • If ease of cleaning and durability are your priorities, synthetic brushes are better suited to meet those needs.

Editorial Suggestion

Makeup is meant to boost our confidence and bring enjoyment—it’s a personal and creative expression, and there’s no need to overcomplicate it. Choosing a makeup brush doesn’t have to be about ethics or environmental concerns; it’s simply about finding the tools that enhance your makeup routine.

Natural brushes are not inherently unethical, and synthetic brushes are not always eco-friendly. Their value and suitability depend entirely on your personal needs, ethical beliefs, and lifestyle—nothing more, nothing less. Let’s keep it simple and focus on what makes makeup a joyful experience for you.

Data Sources:

University of California, Davis: "Synthetic Makeup Brush - Design Life-Cycle"