Allergen & irritant analysis
This serum from The Ordinary lists 27 ingredients. AllerNote's analysis found no commonly-flagged contact allergens or irritants in the INCI list — though no formula is universally safe. No added fragrance, parabens, MI / MCI (isothiazolinones), formaldehyde-releasing preservatives, SLS / SLES sulfates were detected in the listed ingredients.
No commonly-flagged contact allergens or irritants were detected in the listed ingredients — though no formula is universally safe.
Not detected: added fragrance, parabens, MI / MCI (isothiazolinones), formaldehyde-releasing preservatives, SLS / SLES sulfates.
Generated from this product's ingredient list and AllerNote's allergen database — educational, not medical advice or a substitute for patch testing.
Benefits
Full Ingredient List
27INCI (full list, INCI order): water, propanediol, betaine, sodium pca, panthenol, sodium lactate, arginine, pca, aspartic acid, glycine, alanine, serine, threonine, valine, proline, isoleucine, lysine hcl, histidine, phenylalanine, glutamic acid, citric acid, dimethyl isosorbide, polysorbate 20, trisodium ethylenediamine disuccinate, 1, 2-hexanediol, caprylyl glycol
Tap any ingredient to see details
Potential Concerns
- May Worsen RosaceaCan trigger flare-ups in rosacea-prone skin.
Frequently asked questions
Is Amino Acids + B5 fragrance-free?
No added fragrance or EU-labelled fragrance allergens were detected in Amino Acids + B5'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 Amino Acids + B5 paraben-free?
No parabens were detected in Amino Acids + B5'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 Amino Acids + B5 suitable for sensitive or allergy-prone skin?
No commonly-flagged allergens or irritants were detected in Amino Acids + B5, which is encouraging for reactive skin — but "no known flags" isn't the same as "safe for everyone." Patch test before full use, and check it against your own allergen profile on AllerNote.

