Female vs Male Skin How Skin Renews Differently, According to a New Nature Study

Is female skin different from male skin? We usually talk about skin types — dry, oily, sensitive — but a study published in Nature in October 2026 suggests biological sex changes the way skin renews itself, right down to its stem cells.

How skin renews itself

Your outer skin, the epidermis, is replaced continuously. Stem cells in its deepest layer divide, and their descendants travel upwards, mature and are eventually shed. How those stem cells decide when to divide and when to mature has been debated by scientists for years.

Filming skin cells for five months

To settle it, the team led by first author Dan Engelman used intravital imaging — a microscope technique that films cells through the skin of living mice — and followed the same stem cells and their descendants for five months, an unusually long observation window.

Female vs male skin: what the study found

The researchers first showed that skin renewal passes through an intermediate stage: stem cells divide a limited number of times before fully specialising. Then came the difference between the sexes.

In females, skin cells move “in step”

In female mice, the two “sister” cells born from the same division tended to make the same decision together — both dividing again, or both maturing. The researchers compare it to rowers moving in rhythm.

In males, cells follow their own timing

In male mice, sister cells behaved much more independently, each following its own rhythm.

The role of estrogen and testosterone

To test whether hormones were responsible, the team changed the hormonal environment of the mice:

• Testosterone: when male mice were castrated, their skin cells started behaving more like female cells. Giving them a testosterone derivative (DHT) brought the male pattern back. According to the researchers, male hormones control how quickly cells mature and leave the stem-cell layer.
• Estrogen: when the ovaries of female mice were removed, stem-cell division slowed and the synchronised behaviour almost disappeared. Giving estradiol, a form of estrogen, restored stem-cell proliferation.

The team also applied testosterone to human skin reconstructed in the laboratory. The results suggest a similar mechanism may exist in people.

Do wounds heal faster in women?

The most striking practical finding concerns wound healing. Small wounds on the back closed noticeably faster in female mice than in male mice, especially during the first days. The researchers link this to earlier activation of stem cells and their more coordinated behaviour. The gap narrowed as healing progressed.

The study offers a biological explanation for something doctors have long observed: skin conditions and healing don’t always follow the same course in women and men.

The limits of the study

• It is a mouse study. Apart from one laboratory test with testosterone on reconstructed human skin, the findings come from mice. The researchers say more work is needed to see how closely human skin follows the same rules.
• It says nothing directly about menopause or skin ageing. Removing the ovaries in mice is not the same as menopause, and the study did not test skin-care products or hormone therapy.
• Applications are long-term. The authors see future value for sex-informed care of burns, post-surgical and chronic diabetic wounds, and for understanding why some skin diseases and skin cancers differ between the sexes.

What it means for your skin today

Your skin is not just “skin”: its renewal is tuned by hormones in ways scientists are only starting to map. For now, the best everyday care stays the same — gentle cleansing, moisture, daily sun protection, and seeing a doctor for any wound that is slow to heal.