Love this product, I'm using it everyday or every other day, it feels very therapeutic. I can feel a little sting so that means there's a fair amount of glycolic acid, as they advertise, 15%. I'm wary of other brands that say Glycolic, but don't list the percentage, that's never a good sign. It's been a couple of months, I've definitely seen an improvement with all my smaller lines, it tightens and gives a glow. The price is very fair, I work in the industry. I'm hooked and very happy. If you're going out in the sun, apply it at night like you would a retinol. Jmo.
