Tretinoin, any good, what’s your experience

I have a pharmacy that sells 2% pretty cheap since they make it and Im not buying a brand, I’ve read people that mix it with min, lowering it to 0.025% or 0,25% cant remember. Most of the say it’s a game changer, people use it for their skin and say it really helps out to keep looking young. For the hair it seems some people say it helps even without min but that with combination with min it helps it absorbs pretty much perfectly giving the best min results possible, to a degree that you can even apply min once a day. I would like to know from people that use it, their experience after 6 months, did you use it with min, alone, did you start it with min or did you add it later. Dut/fin are good to retain the results, but did ret help you grow more?