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Correct Sunscreen Application Essential as UK Summer Begins

Superdrug’s pharmacy superintendent explains that waiting for absorption then reapplying at set intervals preserves sunscreen effectiveness.

Overview

  • Apply sunscreen 15 to 30 minutes before going outdoors so it fully absorbs into the skin before sun exposure.
  • Reapply sunscreen to exposed areas 15 to 30 minutes after initial exposure and always after swimming or heavy sweating.
  • Understand that SPF measures protection against UVB burns while star ratings indicate UVA defence and that both rays contribute to skin cancer risk.
  • Check expiry dates and note that most sunscreen bottles remain effective for up to 30 months but lose potency once opened.
  • Keep infants under six months out of direct sunlight between 11 am and 3 pm and apply at least SPF 30 to children’s exposed skin from March through October.