feels good on skin non irritating [SEP] this bh dermcenter retinol serum is made in the usa this serum is paraben free vegan non gmo and gluten free a little of this serum goes along way it can be used daily under your moisturizer it contains retinal which is supposed to restore collagen to your skin lighten dark spots and hide fine wrinkles only time will tell if this serum lives up to its claims however i like the way it feels on my skin and it was non irritating overall i recommend this product