The ingredient narratives reshaping clean beauty.
Methylene Bis-Benzotriazolyl Tetramethylbutylphenol (Tinosorb M)
aka tinosorb m · bisoctrizole · mbbt
BASF's hybrid organic-particulate UVA/UVB filter — works by absorption, scattering, and reflection simultaneously, which is unique among cosmetic UV actives. Photostable, broad-spectrum, micronized (but EU-cleared as non-nano per the regulatory definition). Approved in EU, UK, Asia, Australia; not FDA-approved in the US. The reason European and Asian SPF feels generations ahead.
- broad-spectrum UVA + UVB in a single molecule
- photostable; stabilizes other co-formulated filters (avobenzone)
- particulate format — partial scatter mechanism reduces systemic absorption
- Beauty of Joseon Relief Sun
- Bioderma Photoderm
- La Roche-Posay Anthelios (EU)
Effective at 2–10%; commonly used with Tinosorb S, ethylhexyl triazone, and avobenzone in EU/Asia formulations. Compatible with mineral filters for hybrid systems.
Not FDA-approved (US). Particulate so technically a 'physical-chemical hybrid' — clean-puritan camp's positioning depends on definition.
Trusted in Asia/EU clean spectrum; contested in US clean-puritan space because of FDA gap.
The ingredient narratives reshaping clean beauty.
Methylene Bis-Benzotriazolyl Tetramethylbutylphenol (Tinosorb M)
aka tinosorb m · bisoctrizole · mbbt
BASF's hybrid organic-particulate UVA/UVB filter — works by absorption, scattering, and reflection simultaneously, which is unique among cosmetic UV actives. Photostable, broad-spectrum, micronized (but EU-cleared as non-nano per the regulatory definition). Approved in EU, UK, Asia, Australia; not FDA-approved in the US. The reason European and Asian SPF feels generations ahead.
- broad-spectrum UVA + UVB in a single molecule
- photostable; stabilizes other co-formulated filters (avobenzone)
- particulate format — partial scatter mechanism reduces systemic absorption
- Beauty of Joseon Relief Sun
- Bioderma Photoderm
- La Roche-Posay Anthelios (EU)
Effective at 2–10%; commonly used with Tinosorb S, ethylhexyl triazone, and avobenzone in EU/Asia formulations. Compatible with mineral filters for hybrid systems.
Not FDA-approved (US). Particulate so technically a 'physical-chemical hybrid' — clean-puritan camp's positioning depends on definition.
Trusted in Asia/EU clean spectrum; contested in US clean-puritan space because of FDA gap.