What Works Skin — Independent · Evidence-First · Ad-FreeIssue 014 · 20 April 2026 · Next: 04 Maywhatworksskin.com

Sun Protection · Daily Fluid SPF

P. 04 · REVIEW

La Roche-Posay

Anthelios UVMune 400 Invisible Fluid SPF 50+.

The first consumer sunscreen to seriously close the long-UVA gap. Two years after launch, still the highest UVA-PF we can document in a fluid SPF — and the daily default we recommend for pigment, photoaging, and post-procedure skin.

— § 02

The ingredients.

Tier
Ingredient
Role
Note
Mexoryl 400 (MBBT-derivative)
Tinosorb S (Bemotrizinol)
Tinosorb M (Bisoctrizole)
Uvinul A Plus
Uvinul T 150
Mexoryl SX (Ecamsule)
Glycerin
Tocopherol (Vit E)

— § 05

Frequently asked.

Is UVMune 400 the same as the old Anthelios?

No. It is reformulated around Mexoryl 400 (MBBT-derivative), a UVA filter active in the 380–400 nm range that older Anthelios did not reach. It is the strongest long-UVA defence available in consumer skincare.

Does it work for melasma and PIH?

Yes — long-UVA is the primary driver of pigment relapse. UVMune 400's UVA-PF of 46 makes it our default recommendation for pigment-prone and post-treatment skin.

Is it safe in pregnancy?

All six filters are non-nano and EU-approved with negligible systemic absorption in the published literature. We score it safe for pregnancy and breastfeeding.

Why so expensive in India?

Six premium filters, EU manufacturing, import duty. There are cheaper SPFs that perform well — see the comparison table — but no consumer SPF currently matches its UVA coverage.

Can I use it under makeup?

Yes. Wait 60 seconds for the fluid to set, then apply foundation. It does not pill under most water-based or silicone primers we tested.