Kiwi Farms

okay, I have pcos, and despite me going to extreme lengths on taking care of my body, I am experiencing thinning hair.
one of my friends takes collagen in coffee every day and 3 times a day to get great skin hair and nails, but I am a little unsure if the hype is real.
so I am seeeking anyone else who tried it to get a second opinion before I make a decision.
do you take collagen? have tried it? and does it work for you or the results were meh?