No race is completely unable to grow facial hair, but there are significant differences in how much facial hair men of different ethnic backgrounds typically develop. East Asian, Southeast Asian, and Native American men tend to grow the least facial hair, often producing sparse, fine, or patchy growth compared to men of European, Middle Eastern, or South Asian descent. These differences come down to genetics, specifically variations in hair follicle density and how sensitive those follicles are to the hormones that trigger beard growth.
Which Groups Grow the Least Facial Hair
Men of East Asian descent (Chinese, Japanese, Korean) consistently show the sparsest beard growth among major population groups. Southeast Asian men (Thai, Vietnamese, Filipino) follow a similar pattern, though with more variation. Native American and Indigenous populations across the Americas also tend to have lighter, finer facial hair than European or African populations. Among these groups, many men can eventually grow some facial hair, but it often comes in later, thinner, and patchier than what men of other backgrounds experience.
On the other end of the spectrum, men of Middle Eastern, South Asian, and Mediterranean European descent generally grow the thickest, densest beards. Men of Northern European and African descent fall somewhere in between, though African men often have coarser, curlier facial hair that can appear less dense even when follicle count is similar.
The EDAR Gene and Hair Follicle Density
One of the best-understood genetic factors behind these differences is a variant of the EDAR gene. A specific version of this gene, called EDAR370A, appears at high frequency in East Asian and Native American populations but is rare in European, African, and other groups. This variant has a well-documented effect on hair: it makes individual hair fibers thicker, which is why East Asian head hair tends to be coarse and straight. But it also reduces overall hair follicle density in the skin.
Fewer follicles per square centimeter of skin means fewer potential beard hairs. So even though each individual hair strand may be thick, the total coverage on the face is thinner. This trade-off between fiber thickness and follicle density helps explain why East Asian men can have noticeably thick head hair while growing very little on their faces.
Androgen Sensitivity Matters More Than Testosterone
A common assumption is that men who grow less facial hair must have lower testosterone. Research doesn’t support this. A large national study comparing testosterone levels across racial groups in the U.S. found no meaningful difference between Black and white men, and Mexican-American men actually had the highest testosterone levels of any group measured. Testosterone levels alone don’t predict how much facial hair you’ll grow.
What matters more is how sensitive your hair follicles are to androgens, the class of hormones that includes testosterone. This sensitivity is controlled in part by the androgen receptor gene, which sits on the X chromosome. The gene contains a repeating segment of DNA (called CAG repeats), and the length of this segment varies between individuals and ethnic groups. Shorter repeats make the receptor more active, meaning hair follicles respond more strongly to the same amount of testosterone. Longer repeats reduce that response.
Research comparing women of different ethnic backgrounds found that those with longer CAG repeat sequences had significantly less body and facial hair growth, independent of their actual hormone levels. Ethnic origin and CAG repeat length were the two strongest predictors of hair growth. The same mechanism operates in men: two men with identical testosterone levels can grow dramatically different beards if their androgen receptors differ in sensitivity. Native American populations, for instance, tend to have lower androgen sensitivity in their facial hair follicles, which contributes to lighter, sparser growth even when hormone levels are normal.
Facial Hair Often Arrives Later
For men in groups that grow less facial hair, the timeline is also different. While many European or Middle Eastern men can grow a recognizable beard by their late teens, East and Southeast Asian men commonly report that meaningful facial hair didn’t appear until their mid-to-late twenties or even their thirties. Some describe having nothing more than a thin mustache through their early twenties, with fuller coverage finally filling in around age 26 to 30. Others note that their facial hair continued developing throughout their entire twenties, eventually reaching moderate coverage but never a full, thick beard.
This delayed timeline is normal for these populations. Beard development in all men continues well past puberty, sometimes into the mid-thirties, but the process is slower and less dramatic when genetic factors limit follicle density and androgen sensitivity.
Variation Within Every Group
These are population-level patterns, not absolute rules. Native American populations alone span enormous genetic diversity shaped by geography, climate, and thousands of years of separate migration history. Hair follicle density, thickness, and growth patterns vary across different Indigenous groups. The same is true within East Asia: a Korean man and a man from southern China may have noticeably different beard growth potential.
Mixed ancestry further blurs the lines. A man with one East Asian parent and one European parent might grow a moderate beard, a full beard, or very little at all, depending on which genetic variants he inherited. Individual variation within any ethnic group can be as wide as the variation between groups, which is why some East Asian men grow thick beards while some European men struggle to grow anything beyond patchy stubble.
The bottom line is that facial hair growth is controlled by a combination of follicle density, androgen receptor sensitivity, and developmental timing, all of which are genetically influenced and vary by ancestry. No population is incapable of growing facial hair, but the differences between groups are real, measurable, and rooted in specific genetic variants that have been carried through thousands of generations.