my husbands hair is starting to thin he refuses to research what to do about it, my question is what products work and are they safe?
Welcome to the forum.
minoxidil usually stops the baldness from getting worse, and in the still populated areas (vs areas that are completely bald) it will often start growing those little baby hair.
It is safe to use, and it basically stops the male hormons to reach the roots of the hair, where they tend to make people bold.
Once you stop, you will get back very soon to the position you you not have used it, so basically its for llife.
I dont know what its called in the usa, but in Israel and europe they sell it.
In europe usually 2% and in Israel up to 5%, but higher requires a prescription.