Immune-suppressing drug, also called sirolimus
Diabetes drug that lowers blood sugar
- Can metformin improve scalp health in people with insulin resistance or PCOS? There is no controlled trial showing that metformin improves scalp hair. The PCOS studies most often cited measured unwanted body hair, not scalp density, and a published case report describes hair loss during metformin treatment; any use for hair would be off-label and a decision for a prescribing doctor.
JAK inhibitor pill, an immune-system drug
scalp tattoos to mimic the appearance of light stubble
- Is azelaic acid a treatment on its own or does it need supplements? One small randomised trial (26 women, no placebo) found no significant difference between 5% azelaic acid and 2% minoxidil in female pattern hair loss, which is too small to show they work equally well, and the anti-DHT rationale otherwise rests on in-vitro work. Community members generally describe azelaic acid as an add-on to minoxidil or finasteride rather than a standalone treatment.