PearlSKINPREP SERUM Bioactive Marine ComplexVerified PurchaseDec 18, 2015I have been using this product for several years now. I can't live without it. I like to use it before applying my sunscreen as I spend a lot of time walking by the beach. I apply it, let it dry, apply my sunscreen and then I wear Hynt's concealer where needed and then some Finale powder on top. Skin Prep helps firm up my mature skin and the smell is divine.