Is there a point of no return for hair growth?

I had a good head of hair till I was 38 but the it started receding on the sides and now it’s thinning down the middle. I’ve been taking fin for almost two years now, prolly too late. Not seeing any improvement. I bought a case of minox and tried some around almost bald areas around forehead but it only removed the existing hair. I feel I will go bald by 42 We are not 100%

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