I decided to switch out my regular retinol product a few months ago and bought a few different products to choose a replacement. This is my favorite so far. It has an amazingly smooth texture--it feels kind of like makeup primer when you're putting it on. It hasn't irritated my skin at all (keep in mind, I've been a regular retinol user for nearly a decade) and I can tell it's been doing its job nicely around my eyes and a few brown spots on my cheek. Very nice product.

This is the perfect Retinol product to use when you don't want peeling. I use this 5X serum 4 days/week and the sun spots on the top of my cheek bone are nearly gone.

I originally got this in a rebranded package at my dermatologists office. I then realized it was made by Replenix and started ordering from Dermstore. It's a great retinol. I've built up my percentage through the year, and scale back to a lower percentage in the summer when my skin is more dehydrated.

This stuff is heavenly. I could never get in to retinol because of irritation. I always wanted to because the benefits are unbeatable. I ordered this and it changed everything. There is no irritation and I can still use other products with it. I do suggest starting at the 2x or 3x and work your way up to this one.