From the Inside Out: A Holistic Approach to Hormonal Acne
Hormonal acne is one of the most frustrating skin conditions to treat—not because effective options don't exist, but because conventional dermatological approaches typically address the skin itself while ignoring the internal hormonal environment that is generating the acne in the first place. For patients who have cycled through topical retinoids, antibiotics, and even isotretinoin only to have acne return or persist, a holistic approach that addresses root causes can produce lasting results that surface-level treatments cannot.
What Makes Acne "Hormonal"?
Acne—at its most fundamental level—results from the interaction of four factors: excess sebum (oil) production, follicular hyperkeratinization (abnormal skin cell shedding that plugs pores), colonization by Cutibacterium acnes bacteria, and inflammatory immune response. Hormones drive the first two factors directly.
Androgens—particularly testosterone and its more potent derivative, DHT (dihydrotestosterone)—are the primary hormonal drivers of sebum production. Androgen receptors are present in sebaceous glands, and stimulation of these receptors increases sebum synthesis and secretion. DHT, produced locally in the skin through 5-alpha reductase activity, is particularly potent at sebaceous receptors—meaning that even modest androgen levels can drive significant acne in individuals with high local 5-alpha reductase activity or greater receptor sensitivity.
Hormonal acne typically follows characteristic patterns: concentrated along the jawline, chin, neck, and lower cheeks (the lower-third distribution); associated with the menstrual cycle (worsening in the week before menstruation, when progesterone falls and androgen influence is relatively higher); and resistant to topical treatments that work well for teenage, non-hormonal acne.
Root Causes of Hormonal Acne
Androgen excess (hyperandrogenism): Elevated total testosterone, free testosterone (often more relevant than total), DHEA-S, or androstenedione drives sebaceous gland overactivity. Androgen excess may originate from the ovaries (as in PCOS), the adrenal glands (in adrenal androgen excess), or peripherally (through conversion of DHEA to androgens in skin and fat tissue).
Low SHBG: Sex hormone binding globulin binds testosterone in the bloodstream, rendering it inactive. Insulin resistance, elevated androgens themselves, and low thyroid function all suppress SHBG—increasing the free fraction of androgens available to stimulate sebaceous glands. A woman with "normal" testosterone but very low SHBG may have the androgenic skin effects of someone with elevated testosterone.
Insulin resistance: Elevated insulin directly stimulates androgen production in the ovaries and adrenal glands, suppresses SHBG, and increases IGF-1 (which also stimulates sebaceous activity). The strong epidemiological link between high-glycemic diets, dairy consumption, and acne is mediated largely through insulin and IGF-1 signaling.
Progesterone deficiency: In the luteal phase of the menstrual cycle, progesterone has mild anti-androgenic properties and helps maintain the androgenic balance. When progesterone is deficient—as in luteal phase deficiency, perimenopause, or PCOS-related anovulation—the anti-androgenic counterbalance to testosterone is reduced, amplifying androgenic skin effects.
Estrogen dominance: An imbalance of relatively high estrogen to progesterone can also influence acne through effects on sebum quality and skin inflammation, though this relationship is more nuanced than simple androgen excess.
Gut dysbiosis: The gut-skin axis is increasingly recognized as a significant contributor to inflammatory skin conditions including acne. Dysbiosis (imbalanced gut microbiome) increases systemic inflammation, increases intestinal permeability, and may directly affect skin microbiome composition and sebum quality. Several clinical trials have shown probiotic supplementation reduces acne severity.
BHRT and Skin: Hormonal Tools for Clearer Skin
Bioidentical hormone replacement therapy can address several of the hormonal root causes driving acne:
Bioidentical progesterone provides anti-androgenic effects (competing with DHT at androgen receptors) and helps restore the luteal phase progesterone that modulates sebaceous activity. For women with luteal phase deficiency or PCOS-related anovulation, cyclic bioidentical progesterone often produces meaningful improvement in hormonal acne over several months.
Estradiol therapy in women with estrogen deficiency raises SHBG, reducing free testosterone availability. It also supports skin collagen synthesis, skin hydration, and barrier function—reducing the inflammatory potential of the skin environment.
Spironolactone—an anti-androgen medication frequently used alongside BHRT—blocks androgen receptors in the skin and reduces sebum production. It is one of the most effective medical treatments for hormonal acne in women.
Insulin sensitization (through dietary modification, metformin, or inositol) reduces the androgen-stimulating and SHBG-suppressing effects of elevated insulin—addressing a key upstream driver of hormonal acne.
Topical Strategies That Support Hormonal Treatment
While hormonal therapy addresses the root cause, adjunctive topical strategies support the skin in the interim and reinforce long-term results. Topical retinoids (tretinoin, adapalene) normalize follicular keratinization and prevent pore plugging. Niacinamide reduces sebum production, strengthens the skin barrier, and has anti-inflammatory properties. Azelaic acid inhibits C. acnes proliferation and reduces post-inflammatory hyperpigmentation. Gentle, non-comedogenic skincare that supports the skin microbiome completes the topical picture.
Dietary and Lifestyle Foundations
A low-glycemic diet—eliminating refined carbohydrates, sugar, and high-glycemic foods—reduces insulin and IGF-1 levels that drive sebaceous activity. Reducing dairy intake (particularly skim milk, which has the highest IGF-1 content) is supported by multiple observational studies. Omega-3 fatty acids reduce skin inflammation. Zinc (20–40 mg/day) inhibits 5-alpha reductase activity and has anti-inflammatory effects. Addressing sleep and stress reduces cortisol, which can worsen androgen-driven acne through adrenal androgen production.
Get to the Root of Your Hormonal Acne
If you have been fighting acne without a comprehensive hormonal evaluation, you may be missing the fundamental driver of your condition. Kenton Bruice, M.D., offers comprehensive hormonal testing and treatment at his clinics in Denver, Aspen, and St. Louis—addressing the root hormonal causes of acne alongside the dermatological management. Schedule a consultation with Dr. Bruice to find a lasting solution to hormonal acne.