SPF 40 is perfect for every day use for those
of you with fair or sensitive skin and or Rosacea
or Vitaligo. Be sure and apply SPF 40  30 minutes
prior to sun exposure! It protects against UVA
and UVB rays and is waterproof. The formula for
SPF 40 is a hydrolyzed emulsion which mixes with
water when applied to damp skin and gives ultimate
protection. It is very important that SPF 25 or 40
(depending on how fair you are) is worn every day
even in winter since UVA (skin cancer, wrinkle and
discoloration ray) is always out and travels through
glass as well as clouds, snow, sleet, rain and dull
dreary weather!  90% of all skin cancers, discoloration
and wrinkles/lines occur on the left side of the face and
neck and left hand and arm!

The drivers window side.
(In the UK it is on the reverse side!)