I use this in conjunction with intensive brightening 0.5% retinol treatment, it helps "rebalance"  the effects of the retinol.  It's light weight & non-greasy.  I use several of the PCA creams, each one having it's specific benefit.  It's been a trial & error but I've stuck with it, learned what works best for me & it's been worth it.  I love this line!