INSTANT GLOW sun lotion SPF50 by Piz Buin. Illuminating sun lotion thanks to its light-reflecting particles, illuminating the skin with a subtle golden glow that enhances the skin's natural tone. protects the skin against UVA and UVB rays. Its formula is light, non-greasy and quickly absorbed. Apply before sun exposure and reapply frequently, especially after perspiring, swimming or towel drying.