Fast Forward Your Skincare Goals. Posted on January 13, 2019 by KUR Skin Lab We all have resolutions for the New Year. If you have been on a consistent regimen and feel like there is always some kind of discoloration or texture left behind you may want to incorporate a Retinol into your regimen. At KUR Skin Lab we Carry PCA Skins full line of retinol. There is one for every skin type and concern. During your next visit ask your esthetician which is most suitable for you and how to incorporate it into your weekly routine.