Allergen & irritant analysis
5 flaggedThis after sun care from La Roche-Posay lists 27 ingredients. AllerNote's analysis flags 5 known contact allergens in the INCI list. No added fragrance, MI / MCI (isothiazolinones), formaldehyde-releasing preservatives, SLS / SLES sulfates were detected in the listed ingredients.
- MethylparabenKnown allergen (preservative): Methylparaben
- PropylparabenKnown allergen (preservative): Propylparaben
- OctocryleneKnown allergen (sunscreen): Octocrylene
- Propylene glycolKnown allergen (solvent): Propylene Glycol
- Butyl methoxydibenzoylmethaneKnown allergen (sunscreen): Avobenzone
Not detected: added fragrance, MI / MCI (isothiazolinones), formaldehyde-releasing preservatives, SLS / SLES sulfates. Contains: parabens.
Based on what's flagged, take extra care if you're among:
- People sensitised to preservatives (e.g. MI/MCI or formaldehyde releasers)
Generated from this product's ingredient list and AllerNote's allergen database — educational, not medical advice or a substitute for patch testing.
Benefits
Key Ingredients
- 1Chemical UV FilterAbsorbs UV rays to help prevent sun damage.
- 2Vitamin EProtects skin and soothes irritation.
- 3Mineral UV FilterReflects UV rays using mineral barriers.
- 4AntioxidantsShields skin from free radical damage.
Full Ingredient List
27INCI (full list, INCI order): water, octocrylene, propylene glycol, glycerin, cyclopentasiloxane, titanium dioxide, butyl methoxydibenzoylmethane, drometrizole trisiloxane, terephthalylidene dicamphor sulfonic acid, triethanolamine, isopropyl palmitate, stearic acid, vp/eicosene copolymer, dimethicone, acrylates/c10-30 alkyl acrylate crosspolymer, aluminum hydroxide, carbomer, disodium edta, glyceryl stearate, glycine soja oil, hydroxypropyl methylcellulose, methylparaben, peg-100 stearate, phenoxyethanol, propylparaben, stearyl alcohol, tocopherol
Tap any ingredient to see details
Potential Concerns
- May Worsen EczemaMay worsen itching or irritation for eczema.
- May Trigger AcneCan clog pores or trigger breakouts.
- May Worsen Oily SkinMay increase shine or excess oil.
- May Worsen RosaceaCan trigger flare-ups in rosacea-prone skin.
- May Worsen DrynessCan strip moisture and worsen dryness.
- May Worsen IrritationMay cause stinging, redness, or sensitivity.
Frequently asked questions
Is Posthelios After-Sun Gel fragrance-free?
No added fragrance or EU-labelled fragrance allergens were detected in Posthelios After-Sun Gel's listed ingredients. "Not detected" isn't an absolute guarantee, but it's a good sign for fragrance-sensitive skin — confirm against the current pack and your own triggers.
Does Posthelios After-Sun Gel contain parabens?
Yes, Posthelios After-Sun Gel's INCI list includes one or more parabens. For most people that's low-risk — parabens have a notably low contact-allergy rate — but if you've patch-tested positive to parabens specifically, choose a paraben-free alternative.
Is Posthelios After-Sun Gel suitable for sensitive or allergy-prone skin?
It depends on your specific triggers. Posthelios After-Sun Gel contains 5 flagged allergens and 0 irritants (listed in the analysis above). If none are on your personal allergen list it may suit you, but patch test first — add your allergens to AllerNote to check Posthelios After-Sun Gel against your own profile.

