I would prefer this to be in a pump bottle. It is less sticky than the retinol I used up prior to starting this one. Seems to be skin smoothing - no negative side effects. It absorbs well and plays well with my other nightly skin care routine. Time will tell how effective this product will be with fine lines and wrinkles. I feel like it was a little on the expensive side for the amount of product.

So Good, Really Good, Love ittt

He probado varios serum de retinol y todos me gustan, éste en particular es muy muy pero muuuy suave y gentil con la piel, lo volveré a comprar.

I love retinol, and I love isntree, so to me this is the best of both worlds! The product is wonderful and it is magical on my skin. It does not break me out at all, and my skin is smooth afterward. My only complaint is that the dropper on the bottle. The product is much too thick and the dropper is not effective. I end up pouring the product in my hand to use.