Estrogen and Male Skin: Why Men Need Estrogen Too and What Happens When It's Off Balance

Estrogen is widely understood as a female hormone — and in relative terms, that framing is accurate. Women produce substantially more estrogen than men, and estrogen's effects on the female body are more pronounced and more discussed. But estrogen is not absent in men, and it is not irrelevant to male skin health. Men produce estrogen, depend on it for several aspects of skin biology, and experience measurable skin consequences when estrogen levels are too high, too low, or artificially disrupted by medical treatment.

For men undergoing androgen deprivation therapy for prostate cancer — one of the most common cancer treatments in men — understanding the estrogen-skin relationship is directly relevant to the skin changes they experience and the skincare strategies that can help. For all men, understanding what estrogen does in male skin provides a more complete picture of how hormonal balance shapes skin health across the lifespan.

The framing of estrogen as exclusively female is biologically inaccurate. Estrogen is produced in all humans — the difference between males and females is one of quantity and context, not presence or absence. In men, estrogen is produced in smaller amounts and plays a supporting rather than dominant role in hormonal regulation, but its functions are genuine and its absence has real consequences. [1]

Estrogen in men serves several established biological functions: it is essential for bone density maintenance, cardiovascular health, libido regulation, fertility (estrogen is required for normal sperm maturation), and neurological function. Its skin-specific functions are less discussed but equally real — and the skin changes associated with estrogen disruption in men are recognizable and consistent.

Understanding male estrogen requires understanding the hormonal ecosystem in which it operates — one dominated by testosterone rather than by estrogen, but one in which the balance between these hormones is as important as the absolute level of either.

Men produce estrogen through two primary pathways:

• Testicular production — the testes produce small amounts of estradiol directly, accounting for approximately 20% of circulating estrogen in men. Leydig cells in the testes express aromatase and convert testosterone to estradiol locally. [1]
• Peripheral aromatization — the majority of men's circulating estrogen (approximately 80%) is produced through peripheral aromatization — the conversion of circulating androgens (primarily testosterone and androstenedione) to estrogens (primarily estradiol and estrone) by aromatase expressed in adipose tissue, skin, muscle, bone, and the brain.

This peripheral pathway is the more variable of the two — it is directly influenced by body composition (adipose tissue mass), age, medications, and health status. It is also the pathway most relevant to the skin-specific effects of estrogen in men, since aromatase in skin cells converts local androgens to estrogens with direct paracrine effects on neighboring skin cells. [2]

A commonly surprising fact: men's circulating estrogen levels are not dramatically lower than postmenopausal women's. Typical estradiol levels:

• Premenopausal women: 30-400 pg/mL (cycling)
• Men: 10-40 pg/mL
• Postmenopausal women: 5-20 pg/mL

Men consistently have higher circulating estradiol than postmenopausal women who are not using HRT. This helps explain why men's skin tends to age more slowly than postmenopausal women's skin in certain respects — particularly in collagen maintenance and skin thickness — despite men producing primarily androgens. Their estrogen levels, while low relative to premenopausal women, remain consistently above the post-menopausal floor. [3]

The key difference is not just quantity but context — men's estrogen operates in a high-androgen environment, while women's operates in a relatively low-androgen environment. The ratio between androgens and estrogens shapes the biological effects of both.

The skin effects of estrogen in men operate through the same receptor mechanisms as in women — ERα in fibroblasts and sebaceous glands, ERβ in keratinocytes and immune cells. The effects are similar in kind but different in degree, reflecting both lower absolute estrogen levels and the modulating influence of the high-androgen environment.

Collagen synthesis and maintenance

Estrogen supports fibroblast collagen production in male skin through the same ERα-mediated mechanisms as in female skin. Men's higher circulating testosterone (which cannot directly stimulate fibroblast collagen synthesis) means that estrogen — derived through peripheral aromatization — provides the primary estrogenic collagen support in male skin.

Studies comparing skin collagen in men and women of equivalent ages show that men maintain higher absolute collagen density into older age than women — an advantage attributed in part to their more stable post-reproductive estrogen levels (unlike women, men do not experience the dramatic post-menopausal collagen cliff). [3]

Barrier function

Estrogen supports ceramide synthesis and barrier lipid production in male skin, contributing to barrier integrity. Men's naturally oilier skin — driven by androgen-stimulated sebum production — provides additional barrier protection that partially offsets the lower average estrogen levels. The combination of androgens (sebum) and estrogen (ceramides, barrier lipids) creates a different but functional barrier profile in male skin. [1]

Sebaceous regulation

In the context of male skin, estrogen acts as a partial counterbalance to the dominant androgenic stimulation of sebaceous glands. While testosterone and DHT are the primary drivers of sebum production in men, estrogen moderates this stimulation. Disruption of the estrogen-androgen balance — in either direction — affects sebum production and the skin conditions associated with sebaceous dysfunction. [2]

Wound healing

Estrogen supports the same wound healing mechanisms in men as in women — keratinocyte proliferation, inflammatory regulation, angiogenesis. Studies comparing wound healing in younger versus older men have documented the slower healing of older men's skin — a change attributed in part to the declining estrogen-to-androgen ratio that accompanies aging. [4]

Skin thickness

Male skin is measurably thicker than female skin — approximately 20-25% thicker on average — primarily due to androgen-driven dermal development. Estrogen contributes to maintenance of this thickness, but the dominant driver is androgenic. The relative contribution of estrogen to male skin thickness becomes more apparent when estrogen is removed — as in androgen deprivation therapy, where skin thinning is a documented side effect. [3]

In male skin biology, the ratio between estrogen and testosterone is often more clinically relevant than the absolute level of either hormone alone. This ratio determines:

• Sebaceous activity — higher testosterone relative to estrogen favors greater sebum production. Lower testosterone relative to estrogen (or higher estrogen relative to testosterone) reduces sebum production.
• Skin thickness — testosterone drives skin thickness; estrogen maintains it. The balance between them influences the dermis's structural character.
• Hair follicle behavior — the androgen-estrogen balance influences hair follicle cycling in male skin, particularly in scalp hair where DHT drives follicle miniaturization and estrogen moderates it.
• Fat distribution — estrogen influences fat distribution patterns in men; higher estrogen relative to testosterone promotes more gynoid (female-pattern) fat distribution, which in turn produces more peripheral aromatization, creating a self-reinforcing loop. [2]

This ratio perspective is particularly important for understanding the skin effects of aging and medical treatment in men — changes in skin are often driven by shifts in the ratio rather than changes in a single hormone.

Men's hormonal aging is a gradual process — very different from the dramatic estrogen cliff of female menopause, but with its own progressive trajectory.

• Testosterone declines gradually — from peak levels in the 20s, testosterone declines at approximately 1-2% per year from the 30s onward. By age 70, many men have testosterone levels 30-50% lower than their peak.
• Aromatase activity increases with age — adipose aromatase activity tends to increase with age, meaning a greater proportion of declining testosterone is converted to estrogen. In some older men, this produces a relative shift toward estrogen dominance despite declining absolute levels of both hormones.
• Net effect on skin — male skin aging is driven primarily by the gradual decline in androgen-stimulated collagen synthesis and sebaceous activity, with the estrogen contribution remaining relatively more stable than in women. This produces a more gradual aging trajectory than the female post-menopausal collagen cliff — explaining the clinical observation that male facial aging tends to be more linear while female facial aging shows a notable acceleration at menopause. [3]
• Body composition change — the increase in adipose tissue that commonly accompanies male aging increases peripheral aromatization, tending to preserve estrogen levels even as testicular production and testosterone decline. Heavier older men often have higher estrogen levels than lean older men — with implications for both skin aging and health risk, as discussed below.