Allergen & irritant analysis
4 flaggedThis sheet mask from Neutrogena lists 21 ingredients. AllerNote's analysis flags 3 known contact allergens and 1 common irritant 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
- Benzyl alcoholKnown allergen (preservative): Benzyl Alcohol
- EthylparabenKnown allergen (preservative): Ethylparaben
- Sodium hydroxideStrong alkaline substance that can be highly corrosive and irritating in high concentrations; used safely in cosmetics only in neutralized, low concentrations for pH adjustment.
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
- 1Hyaluronic AcidHydrates by attracting and holding water.
- 2AntioxidantsShields skin from free radical damage.
Full Ingredient List
21INCI (full list, INCI order): water, butylene glycol, glycerin, polyacrylate-13, methylparaben, benzyl alcohol, xanthan gum, polyisobutene, ethylparaben, peg-60 hydrogenated castor oil, triethylhexanoin, dipotassium glycyrrhizate, sodium citrate, bht, polysorbate 20, sodium hydroxide, sodium hyaluronate, sodium myristoyl glutamate, cetearyl olivate, citric acid, sorbitan olivate
Tap any ingredient to see details
Potential Concerns
- May Worsen EczemaMay worsen itching or irritation for eczema.
- 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.
- May Worsen Oily SkinMay increase shine or excess oil.
Frequently asked questions
Is Hydro Boost Hydrating Mask fragrance-free?
No added fragrance or EU-labelled fragrance allergens were detected in Hydro Boost Hydrating Mask'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 Hydro Boost Hydrating Mask contain parabens?
Yes, Hydro Boost Hydrating Mask'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 Hydro Boost Hydrating Mask suitable for sensitive or allergy-prone skin?
It depends on your specific triggers. Hydro Boost Hydrating Mask contains 3 flagged allergens and 1 irritant (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 Hydro Boost Hydrating Mask against your own profile.

