06 August 2008

UVA stars indicate the strength of a cream's protection against UVA rays in relation to its UVB protection. This means the higher the SPF, the more UVA protection is needed to achieve the same amount of stars. So an SPF 30 sunscreen with three stars will have more UVA protection than an SPF 15 sunscreen with four stars.

  • Five stars → 90% of the UV B protection
  • Four stars → 80% of the UV B protection
  • Three stars → 60% of the UV B protection
  • Two stars → 40% of the UV B protection
  • One stars → 20% of the UV B protection

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