Your oil glands build their own dihydrotestosterone, converting weak hormone precursors from your bloodstream into DHT inside the gland itself. That locally made DHT is the switch for oil production and the inflammation that follows. This article explains how that specific pathway works and then audits the four things men take that feed into it: whey protein, creatine, high glycemic load, and exogenous androgens. The evidence behind each one is wildly uneven, and here is what actually holds up.
Mechanism: Sebocytes express the androgen receptor plus the full steroidogenic enzyme set, converting circulating DHEA into testosterone and then into DHT inside the gland.[1,2]
Target: Androgen receptor binding at the sebocyte, IGF-1 amplification of that signal, and the lipogenic transcription it activates.[2,3]
Outcome: Oil volume increases, the duct dilates, and proinflammatory signaling accompanies it. No cosmetic product blocks the androgen receptor, so a daily system covers the three pathways below it.[2]
Educational content only. This does not constitute medical advice. For persistent or cystic acne, or for questions about hormone therapy, consult a board-certified dermatologist or the physician managing your labs.
Executive summary
- The gland is an endocrine organ. Sebocytes carry the androgen receptor and the enzymes that build testosterone and DHT locally from circulating DHEA, which amplifies androgen signaling inside the gland independent of blood levels.[1,2]
- DHT alone drives sebocyte lipogenesis. Binding at the receptor activates transcription of the lipid synthesis and proinflammatory genes that fill the cell with oil.[2,9]
- Male sebum output climbs after puberty and stays elevated. Sebum excretion rate correlates with male sex, and higher output is accompanied by measurably impaired barrier function.[6,7]
- Whey has the strongest evidence in the gym stack. In 201 male gym attendees in Jordan, supplement use over the previous three months was 47.0% among those with acne against 27.7% in age-matched controls, p=0.0047.[3]
- Creatine was cleared in 2025. A 12-week randomized controlled trial in resistance-trained men found no change in DHT, the DHT to testosterone ratio, or hair parameters against placebo.[4]
Your skin builds its own DHT
Sebocytes are the cells lining each sebaceous gland. They express the androgen receptor along with the enzymes required to convert weaker circulating precursors into potent androgens.[1] Circulating DHEA arrives, 3β-HSD and 17β-HSD convert it toward testosterone, and type 1 5-alpha-reductase produces DHT inside the gland.
DHT binds the androgen receptor in the sebocyte, the complex enters the nucleus, and it activates the genes that fill the cell with lipid.[2,9] Oil volume increases. Proinflammatory signaling accompanies it. That combination is the mechanism behind androgen-driven acne.
IGF-1 amplifies every step. It stimulates 5-alpha-reductase activity, adrenal and gonadal androgen synthesis, and androgen receptor signal transduction.[2] Anything that pushes insulin and IGF-1 upward feeds the same gland.
The sebaceous gland is the primary site of androgen production in skin, and acne is the textbook androgen-driven skin disease.
Synthesis of Journal of Endocrinology 2014 and Reviews in Endocrine and Metabolic Disorders 2016The gym stack, ranked by evidence
Four inputs get blamed for male acne. The quality of evidence behind them differs by an order of magnitude, and almost nobody in men's fitness content says which is which.
| Input | What the evidence actually supports |
|---|---|
| Whey protein Strongest of the four |
Significant association in a 2024 case-control study of 201 men. Proposed route is insulin and IGF-1 amplifying androgen receptor signaling. Cross-sectional design, and the authors requested prospective work with IGF-1 measured directly.[3] |
| High glycemic load Moderate and consistent |
Prospective cohort data associates high glycemic and fatty food intake with adult acne.[8] Insulin and IGF-1 rise, androgen synthesis follows. Observational design across the whole literature. |
| Exogenous androgens Direct and physician territory |
Testosterone therapy and anabolic compounds raise the exact signal the gland responds to. Sebaceous hyperactivity is a documented outcome.[2] No protocol advice here. Speak to the physician managing your labs. |
| Creatine Weak, and contradicted |
One 2009 crossover study in 20 rugby players reported a 56% rise in the DHT to testosterone ratio after loading.[5] A 12-week randomized controlled trial in 2025 found no difference in DHT, the ratio, or hair density against placebo.[4] Keep taking it. |
| Acne mechanica Separate mechanism |
Friction, occlusion, and sweat trapped under equipment, straps, and helmet padding. Changing supplements does nothing here. Changing your gear does. |
What a topical can reach
Receptor blockade is prescription pharmacology. Any product claiming to shut down DHT at the gland is selling you something the category cannot deliver. The honest job of a daily system covers the three pathways downstream of that receptor.
Sebum output is measurable and modifiable at the surface. Niacinamide has the most reproducible data on lowering sebum excretion rate, and salicylic acid partitions into the lipid inside the duct where the plug forms.
Retinoids normalize the cell turnover inside the duct that traps oil behind a plug. This is the slowest of the three levers and the one most men abandon before it produces anything visible.
Higher male sebum output is accompanied by measurably impaired barrier function.[7] Stripping that barrier further with harsh cleansers worsens the inflammation half of the pathway while doing nothing to the androgen half.
The evidence gap
Most dietary acne data is nutritional epidemiology. Cohort and case-control designs establish association and cannot establish causation, which the authors of these studies state plainly and the supplement industry consistently omits.[3,8] A single unreplicated study in 20 subjects held the internet's opinion on creatine for sixteen years before a controlled trial contradicted it.[4,5] Check the design before you change your stack.
Where the science is going
Local steroidogenesis is the interesting frontier. Recognizing skin as a site of active hormone production, and not only a target of circulating hormones, reframes what a topical intervention could theoretically reach.[1,2] Enzyme-level targets inside the gland are under investigation.
GOA's Clear Skin System addresses the three pathways below the receptor in two steps. The Purifying Face + Body Cleanser and the Collagen + Control Facial Serum both carry Dark Phyto Matter, a microencapsulated complex holding retinol, niacinamide, salicylic acid, stabilized Vitamin C, and MSM. Encapsulation is what allows those actives to coexist twice daily without the irritation load that ends most protocols in the first month.
Protocol
Audit the stack before the skincare
If whey is in your rotation and acne started when it did, swap to an isolate or a plant protein for four weeks. That is a cleaner test than any product change, and it costs nothing.
Purifying Face + Body Cleanser, morning and night
Half a pump on wet skin, 30 to 60 seconds of contact, cool rinse. Salicylic acid partitions into the oil inside the duct. Silk Amino Tech holds the barrier intact while it works.
Collagen + Control Facial Serum, morning and night
One pump across the T-zone, chin, and jawline. Niacinamide addresses sebum excretion rate, encapsulated retinol addresses keratinization inside the duct.
Wash within 30 minutes of training
Friction and occlusion under equipment produce a mechanism entirely separate from androgens. Clean gear, clean pillowcase, and prompt post-session cleansing address it.
Evaluate at 12 weeks, and see a dermatologist for cystic acne
Comedonal counts shift first. Nodular or scarring acne is prescription territory, and delaying that appointment is the most expensive decision in this entire protocol.
Keep Reading
Best Acne Treatments for Men in 2026
Every intervention available to men, ranked by evidence strength, with the trial numbers attached.
Read the guideHow Your Health Data Changes Your Skin Routine
Sleep, recovery, and stress markers show up on your face before they show up in bloodwork.
Read the guideMastering Pore Management for Men
The same gland drives visible pore size. What the intervention data supports and where it stops.
Read the guideFAQs
Does creatine cause acne?
Current evidence says no. The concern traces to one 2009 crossover study in 20 rugby players reporting a 56% rise in the DHT to testosterone ratio after a seven-day load.[5] A 12-week randomized controlled trial published in 2025 measured DHT, the ratio, and hair follicle parameters in resistance-trained men and found no difference against placebo.[4]
Does whey protein cause acne?
The association is real and the causation is unproven. A 2024 case-control study of 201 male gym attendees found supplement use of 47.0% in the acne group against 27.7% in age-matched controls, p=0.0047.[3] The proposed route is insulin and IGF-1 amplifying androgen signaling. A four-week swap to an isolate or plant protein gives you a usable test.
Why do men get more oily skin than women?
Absolute androgen exposure increases after puberty and stays elevated, which raises sebum excretion rate at the gland. Sebum output correlates with male sex in controlled measurement.[6] Higher output is accompanied by measurably weaker barrier function.[7]
Will TRT make my skin break out?
Exogenous androgens raise the signal this gland responds to directly, and sebaceous hyperactivity is documented at supraphysiologic levels.[2] This is a conversation for the physician managing your protocol, and it is worth having before you adjust anything.
References
- Inoue T, Miki Y, Kakuo S, et al. Expression of steroidogenic enzymes in human sebaceous glands. Journal of Endocrinology 2014;222(3):301-317. pubmed.ncbi.nlm.nih.gov
- Endocrine and metabolic drivers of sebum dysregulation: mechanisms and therapeutic strategies. Life Sciences 2025. sciencedirect.com
- Muhaidat J, Qablan A, Gharaibeh F, et al. The effect of whey protein supplements on acne vulgaris among male adolescents and young adults: a case-control study from north of Jordan. Dermatology Research and Practice 2024;2024:2158229. pubmed.ncbi.nlm.nih.gov
- Lak M, Forbes SC, Ashtary-Larky D, et al. Does creatine cause hair loss? A 12-week randomized controlled trial. Journal of the International Society of Sports Nutrition 2025;22(sup1):2495229. pubmed.ncbi.nlm.nih.gov
- van der Merwe J, Brooks NE, Myburgh KH. Three weeks of creatine monohydrate supplementation affects dihydrotestosterone to testosterone ratio in college-aged rugby players. Clinical Journal of Sport Medicine 2009;19(5):399-404. pubmed.ncbi.nlm.nih.gov
- Roh M, Han M, Kim D, Chung K. Sebum output as a factor contributing to the size of facial pores. British Journal of Dermatology 2006;155(5):890-894. pubmed.ncbi.nlm.nih.gov
- Mizukoshi K, Akamatsu H. The investigation of the skin characteristics of males focusing on gender differences, skin perception, and skin care habits. Skin Research and Technology 2013;19(2):91-99. pubmed.ncbi.nlm.nih.gov
- Penso L, Touvier M, Deschasaux M, et al. Association between adult acne and dietary behaviors: findings from the NutriNet-Santé prospective cohort study. JAMA Dermatology 2020;156(8):854-862. pubmed.ncbi.nlm.nih.gov
- Zouboulis CC, Picardo M, Ju Q, et al. Beyond acne: current aspects of sebaceous gland biology and function. Reviews in Endocrine and Metabolic Disorders 2016;17(3):319-334. pubmed.ncbi.nlm.nih.gov
