Peter Thomas Roth anti-aging instant mineral SPF 45 works immediately to block out the sun"s harmful UVA/UVB infrared rays to help prevent sunburn, skin damage, freckling and uneven discoloration. Use as an anti-aging finishing powder with neuropeptides, peptides, vitamins A, C and E and SPF 45. Use anytime for immediate SPF 45 protection. No need to wait 30 minutes after application to go in the sun. Use as SPF 45 touch-ups during the day without having to reapply your makeup. Convenient pocket-size applicator.