dermatology

2 entries tagged dermatology. All writing.

SEPTEMBER 26, 2026 Why Are Tattoos Permanent, and Where Does the Ink Actually Go? A tattoo needle deposits ink once, in seconds, and the picture stays for decades. The obvious explanation — the ink just sits inertly in your skin cells — is wrong. What actually holds it there is your immune system, running a relay that never stops, and part of the ink doesn't stay in the skin at all. SEPTEMBER 22, 2026 A Drug for Hair Loss That Clears Aging Cells Instead of Blocking a Hormone A biotech company is about to put the first GPX4-modulating "senolytic" into a human trial for male pattern hair loss, after ex vivo human follicle data that matched or beat finasteride. It's a genuinely new mechanism after nearly thirty years of the same two drugs — but the data so far is six days old, from follicles in a dish, not scalps.

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