Hyaluronic Acid 2% + B5 Serum INCI List & Ingredients | The Ordinary

Allergen & irritant analysis

1 flagged

This serum from The Ordinary lists 23 ingredients. AllerNote's analysis flags 1 known contact allergen in the INCI list. No added fragrance, parabens, MI / MCI (isothiazolinones), formaldehyde-releasing preservatives, SLS / SLES sulfates were detected in the listed ingredients.

1 known allergen in this formula

Phenoxyethanol · irritant · mediumKnown allergen (irritant): Phenoxyethanol

Not detected: added fragrance, parabens, MI / MCI (isothiazolinones), formaldehyde-releasing preservatives, SLS / SLES sulfates.

How common are allergens in serums? See our data on the whole category →

Generated from this product's ingredient list and AllerNote's allergen database — educational, not medical advice or a substitute for patch testing.

🤖Ask AllerBot“Is The Ordinary Hyaluronic Acid 2% + B5 Serum safe for my allergens?”

Benefits

HydratingScar healingBarrier repairAnti-agingBrighteningReduces irritationRedness reducing

Key Ingredients

1
Hyaluronic AcidHydrates by attracting and holding water.
2
Vitamin EProtects skin and soothes irritation.
3
AntioxidantsShields skin from free radical damage.

Full Ingredient List

INCI (full list, INCI order): water, sodium hyaluronate, propanediol, pentylene glycol, hydrolyzed hyaluronic acid, sodium hyaluronate crosspolymer, phospholipids, sphingolipids, panthenol, ahnfeltiopsis concinna extract, glycerin, polysorbate 20, citric acid, sodium citrate, p-anisic acid, tocopherol, trisodium ethylenediamine disuccinate, caprylyl glycol, ethoxydiglycol, ethylhexylglycerin, hexylene glycol, phenoxyethanol, chlorphenesin

Tap any ingredient to see details

Potential Concerns

May Worsen RosaceaCan trigger flare-ups in rosacea-prone skin.

Frequently asked questions

Is Hyaluronic Acid 2% + B5 Serum fragrance-free?

No added fragrance or EU-labelled fragrance allergens were detected in Hyaluronic Acid 2% + B5 Serum'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.

Is Hyaluronic Acid 2% + B5 Serum paraben-free?

No parabens were detected in Hyaluronic Acid 2% + B5 Serum's listed ingredients. Worth keeping in perspective: parabens are among the least common cosmetic allergens, so "paraben-free" matters far less for reactive skin than avoiding fragrance or the preservative MI/MCI.

Is Hyaluronic Acid 2% + B5 Serum suitable for sensitive or allergy-prone skin?

It depends on your specific triggers. Hyaluronic Acid 2% + B5 Serum contains 1 flagged allergen 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 Hyaluronic Acid 2% + B5 Serum against your own profile.