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Ingredient · INCI reference

Benzylidene Camphor Sulfonic Acid

Benzylidene camphor sulfonic acid is a water-soluble organic UVB sunscreen filter.

What it is

This is a camphor-derived, water-soluble UVB filter. Being water-soluble, it sits in the water phase and contributes a light feel, and it absorbs primarily UVB wavelengths, so it is combined with UVA filters for broad-spectrum coverage.

Spectrum coverage

UVB

UVA-I 340–400nm UVA-I (340–400nm) — not covered UVA-II 320–340nm UVA-II (320–340nm) — not covered UVB 290–320nm UVB (290–320nm) — covered

Regional approval · max %

JP Japan: No data KR South Korea: No data EU 6% Europe: Approved · Max 6% US United States: No data

Safety & warnings

A UVB-focused filter; like other camphor-derived filters its approval and use vary by region.

Reef-toxic
No
Endocrine disruptor
No
Comedogenicity
0

Origin & sourcing

Synthetic organic UV filter.

Questions everyone asks

Is this filter oily?

No, it is water-soluble and tends to give a light, non-greasy feel.

What does it protect against?

Mainly UVB, so it is paired with UVA filters for full protection.

Sources & references

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