I only have bit of thinning hair due to some medical issues. While you can't see it in person, I know that it's happening and my stylist does.
This serum has quite a few helpful components such as argon oil, and pumpkin seed oil that offers broad-Spectrum DHT Blockers which inhibit DHT formation (which causes hair loss) through its effect on 5-alpha-reductase activity.
It comes with all organic ingredients and no SLS (Sulfates), parabens, or chemical preservatives so it's good for your hair and won't cause additional harm.
It's too early to tell how well it's working but I do like the consistency and smell and once I have time to really make a determination, I'll update this review to add in my findings.
You can find it here on Amazon. I was given this product at no charge for an unbiased review.