SPF every day, even when it's cloudy
UVA penetrates cloud cover and glass. 80% of visible ageing is photo-damage.
Staff·
## UVA vs UVB
UVB burns you on a sunny afternoon. UVA ages you — constantly, year-round. Through windows. On cloudy days.
## Reapplication
Two finger-lengths on face + neck, every morning, end of routine. Reapply if you're outside for more than 2 hours.