What is SPF and PA rating?
SPF measures UVB protection; PA measures UVA protection.
Short answer
SPF 15 moisturisers that claim anti-ageing but give almost no UVA protection.
SPF and PA rating when buying a skin care
SPF measures UVB protection; PA measures UVA protection.
Why it matters: UVB burns; UVA ages and darkens. Broad spectrum is not enough — PA+++ or PA++++ is what matters for daily use.
Look for: SPF 15 moisturisers that claim anti-ageing but give almost no UVA protection.
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