Black cumin seed is discussed for potential hair regrowth when applied to the scalp. Experiences vary, with some users finding it effective and others not noticing any benefits.
Flax seeds may block DHT and prevent hair loss. Users discuss its potential benefits, with one noting it likely has negligible effects on hair but is good for the diet.
A user reports hair regrowth after 4 months using finasteride, minoxidil, blackseed oil, GHK-Cu injections, and daily scalp massages, while avoiding shampoo. Another user comments on the negative effects of shampoo.