I really like her Sunscreen Serum. I'm very **bleep** about using sunscreen even under my makeup which already has sunscreen. I live in a very warm climate and I just want to make sure I'm protecting myself. Kate Somerville's Sunscreen Serum comes in a regular formula that's white but blends out nicely (no white face) and a tinted one which, for me, does add a bit of warmth. I've used both under my makeup and loved it.