I have been using this product for three weeks with little to no visible changes. The serum is nice, and I like the consistency and smell.
My biggest issue is that I purchased it from Gundry MD for $120.00 and I see people mentioning they got it for $49.00, and it's all over Amazon for $79.00 or less.
I'm returning mine. I feel ripped off that Gundry MD would charge so much on the basis that it's from the source and is authentic. I'm certain the others are as well.
Bottom Line: No, I would not recommend this to a friend