A user discusses using onionshampoo for hair loss, noting it may be effective but unsure if results are due to the shampoo or other treatments like Minoxidil and a laser comb. They do not use finasteride.
A user has been using Waterman's Grow Me Shampoo, which claims to have DHT blockers and promote hair growth. They've noticed potentially faster hair growth and some new hairs but are unsure if the product is effective or not.
The user tried various shampoos for thinning hair without clear results, except for Viviscal which noticeably thickened their hair. They noted that no shampoo can regrow hair and provided links to YouTube reviews for further information.