Zinc, DHT, and hair that stays

Zinc is a cofactor in more than three hundred enzymes. Men lose it in sweat. The prostate concentrates it. The follicle uses it. Wound healing — including the daily micro-wound of a shave — leans on it. Oysters made the folklore; the biochemistry made the folklore true.

Dihydrotestosterone, DHT, is testosterone reduced by 5-alpha reductase in skin and prostate. It is the androgen most blamed for male pattern hair loss in those who inherited the sensitivity. Zinc can modestly influence that enzyme in vitro. That is a long way from ‘zinc reverses baldness’, and anyone selling that sentence is not reading the papers.

Correct a deficiency and the skin often clears. Megadose a sufficiency and you mostly buy nausea.

Food first, then a number

Red meat, shellfish, pumpkin seeds. The recommended intake for adult men sits around eleven milligrams. Blood tests exist; guesswork is how men end up on stacked ‘test support’ bottles that fight each other. Copper balance matters — chronic high zinc can drive copper down.

On the face, zinc PCA is a calmer story: less oil, some antibacterial effect, useful in a mask or a T-zone. Systemic zinc and topical zinc are not the same errand. The interesting fact is how often a ‘skin problem’ is a diet problem wearing a moisturiser.

Journal notes are for curiosity, not diagnosis. Speak to a clinician before changing medicine, supplements, or training.