SPF is used before a number to indicate the degree of protection from the sun's rays that is provided by a sunscreen or similar product. The higher a product's SPF, the more protection it provides. SPF is an abbreviation for 'sun protection factor.'
First, use a high-quality sunscreen of at least SPF 15 or higher.
However, today there are some products on the market that have SPFs as high as 50.
SPF in British English
abbreviation for
1.
sender policy framework: a mechanism designed to prevent an e-mail address being duplicated and used as a false address from which to send unsolicited e-mails
2.
sun protection factor: an indicator of how effectively a sun cream, lotion, cosmetic, etc, protects the skin from the harmful rays of the sun
SPF 25
SPF in American English
sun protection factor
S.P.F. in British English
veterinary science
abbreviation for
specific pathogen free; denoting animals specially bred to ensure that they are free of specified diseases
Definition of 'SPF'
SPF in British English
abbreviation for
1.
sender policy framework: a mechanism designed to prevent an e-mail address being duplicated and used as a false address from which to send unsolicited e-mails
2.
sun protection factor: an indicator of how effectively a sun cream, lotion, cosmetic, etc, protects the skin from the harmful rays of the sun
SPF 25
S.P.F. in British English
veterinary science
abbreviation for
specific pathogen free; denoting animals specially bred to ensure that they are free of specified diseases