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Mexoryl XL

INCI: Drometrizole Trisiloxane
Also known as: Drometrizole trisiloxane
SPFspfsyntheticStrong evidencePregnancy safe
86
Skinlumis Rating
Comedogenic
1/5
Irritancy
1/5
Best applied
AM
Effective range
2%–5%
How It Works

An oil-soluble broad-spectrum filter often paired with Mexoryl SX in La Roche-Posay sunscreens.

Absorbs both UVA and UVB; lipid-phase distribution complements water-phase filters.

pH Range
5.0–8.0
Benefits
  • Broad-spectrum
  • Photostable
Proven For

What the evidence supports.

UV damage prevention
Best For
  • All skin types
Avoid If

No notable contraindications reported.

Layering Order
10/10

Final occlusive/SPF layer.

Max Safe Concentration
5%

Concentration range in well-formulated products: 2%–5%

Seasonal Use

Year-round.

For Estheticians & Professionals

Lipid-soluble, fills protection gaps in oil-phase formulations.

Pairs Well With
Mexoryl SX
Conflicts With

No flagged conflicts. Still, patch-test new actives.

Your Skin Compatibility

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