Skincare glossary
SPF
Sun Protection Factor, mainly a measure of protection against UVB, the rays that cause sunburn.
- Who it suits
- Everyone, every day, regardless of skin type or weather.
Why is SPF important?
It's the ingredient doing the most long-term work for your skin, full stop. Everything else is secondary.
Worth knowing
SPF 50 isn't twice as strong as SPF 25 (about 98% vs 97% of UVB blocked), and it isn't a timer. Apply enough, and reapply during prolonged sun exposure.
Articles mentioning spf
Launches
September’s Best Beauty Launches
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Recommendations
My Top-Rated Eye Creams as a Former Beauty Trends Editor
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Explained
Is K-Beauty Actually Better? Korean Skincare Explained.
6 min read
Freddie’s edit
The Skincare I’ll Be Buying This Autumn - And Why (as a former Beauty Trends Editor)
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Point of view
6 Beauty Industry Truths Every Consumer Should Know
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This month's launches
July's Best Beauty Launches
5 min read