Inside My Makeup Bag: How to Choose Makeup Brushes by Bristle Material

I wanted to take a closer look at makeup brushes from the perspective of their bristle materials. I do not work in the industry; this is research I have done out of personal interest and to help with my own purchases. Corrections and other perspectives are welcome.

The main questions are straightforward: What materials are commonly used? How do synthetic and natural bristles differ in application? What distinguishes the various animal hairs? How do you choose a brush that suits your needs, and how should you clean it?

Most makeup brushes use either synthetic fibers or natural animal hair. Some combine the two. Natural bristles include goat, squirrel, weasel, badger, horsehair, and boar bristle, along with other varieties sold under more specific names.

Looking back at the brushes I have bought, about half were lessons learned the expensive way.

The main distinction between synthetic and natural bristles is the cuticle. Natural animal hair has a cuticle layer, while synthetic fibers do not. This affects how readily a brush picks up powder and how much it holds onto or releases during application.

Synthetic fibers have smooth surfaces without cuticle scales. They tend to pick up dry powder less readily but release product easily, leaving less trapped in the brush and creating fuller coverage. They are better suited to wet formulas, such as liquids and creams.

Standard synthetic fibers were relatively stiff in earlier brushes, though manufacturing has improved. They are commonly used for foundation, concealer, lip products, and other applications that require precision. Ultrafine synthetic fibers are softer and more densely textured, and are also frequently used in foundation and concealer brushes.

Many major brands use synthetic bristles for most of their brushes. My view is that lower production costs, rather than environmental considerations alone, help explain that choice.

Natural animal hair picks up powder readily because of its cuticle structure. It releases powder more slowly, making even application easier. These brushes are particularly useful for blending and creating a soft finish.

Different animal hairs vary in stiffness, resilience, powder pickup, and product release. Those differences affect how the brush feels against the skin, the finish it produces, and its price.

For a broad quality ranking, snow fox, blue fox, and tanuki hair sit in the highest luxury category. Red squirrel and weasel hair follow in a master-level category. Fine-tip and coarse-tip goat hair fall into the professional category, while medium-tip and white-tip goat hair, along with ordinary squirrel hair, are intermediate options. Horsehair, badger, pahmi hair, and boar bristle are entry-level choices.

Goat hair is the versatile all-rounder, balancing resilience, softness, and powder pickup. Its grades run from fine-tip goat hair, known as xiguangfeng, to coarse-tip cuguangfeng, then medium-tip zhongguangfeng or white-tip baijianfeng, followed by ordinary goat hair.

My current fine-tip goat-hair blush brush is one example. An older eyeshadow brush of the same grade, however, has become uncomfortably prickly.

Squirrel hair is exceptionally soft against the skin. It has little spring, picks up powder well, and releases it slowly for a sheer finish. In the softness ranking used here, snow fox comes first, followed by blue fox and then squirrel hair.

Snow fox hair can create a finish with almost no visible powder, though it is harder to control. Blue fox hair has slightly more spring and is easier to handle. In the industry classification described here, snow fox and blue fox are grouped within the squirrel-hair category. My squirrel-hair eyeshadow brushes are examples of this softer style.

Weasel and pahmi hair are firmer and more resilient. They pick up plenty of pigment and release it quickly and precisely, making them useful for strong color payoff. Pahmi is a lower-cost alternative to weasel hair. Both are used for eyeliner, lip brushes, and highly pigmented eyeshadow application. I also own an old pahmi eyebrow brush.

Tanuki hair combines softness with precision. The bristles hold together in a compact shape while retaining spring, allowing controlled placement with a soft finish. It is rare and expensive.

Horsehair is a budget-friendly option, though it feels coarser than goat hair. Washed horsehair is softer. My old horsehair eyeshadow brush is overdue for a wash.

Badger hair and boar bristle serve more specific functions, though I wonder how many people still choose such firm bristles today. Badger hair is tough and stiff, and is mainly used for eyebrow and lip brushes. Boar bristle is particularly hard and is used only for brow and lash grooming or brush cleaning.

When choosing brushes, shop according to your needs and budget. Synthetic and natural bristles are not simply a matter of one being better than the other.

Synthetic brushes are sufficient if value is your priority. If you want to explore other options, choose natural bristles according to their individual qualities. Qing County in Cangzhou, Hebei, is a major makeup-brush manufacturing area, and wholesale platforms such as 1688 can be useful places to look.

For loose setting powder, snow fox and blue fox offer the most luxurious experience. Fine-tip goat hair is a balanced, versatile choice, while medium-tip goat hair offers good value. One of my blue fox powder brushes has attracted questions in the comments on Xiaohongshu.

For blush, contour, and highlighter, squirrel, blue fox, and fine-tip goat hair work well for natural blending. Coarse-tip goat hair is an option when you want stronger color payoff. I would avoid contour brushes with a little-foot-shaped profile, because the recessed section is difficult to load with powder.

My collection includes a black fox powder-and-blush brush, a blue fox blush brush, and a blue fox powder brush.

For laying down and blending eyeshadow, goat and squirrel hair create softer results. Weasel, pahmi, or a blend of goat and weasel hair provide stronger pigment payoff.

For precise eyeliner, brow, and lip work, consider weasel, pahmi, or badger hair. I have a weasel-tail eyeliner brush that is particularly difficult to photograph because my phone struggles to focus on it.

For everyday makeup with a soft, sheer finish, squirrel, fox, and fine-tip goat hair are the suggested choices.

Synthetic bristles are relatively easy to care for, while natural hair needs a gentler approach. When choosing a cleanser, look for mild surfactants, such as decyl glucoside or amino acid-based surfactants, alongside conditioning ingredients such as glycerin or panthenol.

Avoid strong soap-based formulas made with fatty acids and sodium or potassium hydroxide, sulfates such as SLS and SLES, alcohol, exfoliating particles, and acids such as salicylic acid. A gentle baby shampoo or body wash is the suggested alternative; any brand of baby wash is considered suitable here.

Rinse with cold water flowing in the same direction as the bristles, working through them gently. Blot away moisture with a towel or paper towel, then reshape the brush head.

Leave the brush to dry in the shade, either hanging with its bristles downward or lying flat. Avoid direct sunlight and hot air from a hair dryer. Hanging it upside down helps prevent water from entering the metal ferrule and loosening the glue.