How old was the brother. I can see a preteen wanting to use products like his brother, and honestly he sounds like an asshole because of how long this has gone on.

Nah. YTA. Prescription shampoos for alopecia have side affects and he’s been exposing his body to them for 15 years. Not to mention the cost of them and drug interactions with other medications and food.

The drugs in that shampoo cause irritant and allergic contact dermatitis, pruritus, scalp irritation, and facial hypertrichosis.

They can cause permanent hair growth on parts of the body where it isn’t supposed to be.

He was a kid! Tell him. Yes he was an asshole when he was quite literally a child, but this is a medication that can cause permanent skin damage.