Calypso Once A Day gives the family the freedom to enjoy the day in the knowledge that they are totally protected, with Once A Day protection. Active after 15 minutes. It absorbs quickly into the skin and is odourless and non-greasy. The Calypso Once-a-Day range is your one stop shop to all day protection, with SPF 10, 20 and 40 being a specialist formulation protector for infants. Once-a-Day means what it says, you apply the lotion once, preferably after a shower 15 minutes before you expose yourself to direct sunlight; and the protection lasts all day.