Anyone tried ghk-cu for skin/hair and noticed anything real?

So I keep seeing Ghk-cu popping up everywhere and everyone's claiming it's a miracle peptide. Supposed to boost collagen, improve skin texture, thicken hair, basically reverse aging.

My question is simple: has anyone actually used it and seen legit results? Or is this just another overhyped supplement that does nothing?

I'm skeptical because it sounds too good to be true, but I'm also curious. The science seems solid on paper, but things that look good in studies don't always work on real human bodies.

If you've tried it, I want to know. How long before you noticed changes? What did you actually see? Did it cost a fortune? Any side effects?