The Ordinary

Marine Hyaluronics 30ml

Name: The Ordinary Marine Hyaluronics 30ml
Brand: The Ordinary

30ml

Quick Summary

Best forNot stated by the brand

Worth notingNo fragrance listed

Key ingredientsAlgae & Seaweed Extracts, Ferment & Yeast Extracts, Amino Acids

OverallThe Ordinary's Marine Hyaluronics is a skincare product whose standout ingredients are algae & seaweed extracts (hydrating), ferment & yeast extracts (soothing) and amino acids (hydrating). No fragrance is listed in its ingredients.

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Ingredient Analysis

30 of 33 ingredients identifiedNo fragrance listed

Key ingredients

Algae & Seaweed Extracts Ferment & Yeast Extracts Amino Acids

Full ingredient list (33) — tap a highlighted ingredient to learn more

Aqua (Water) Solvent & base Generally gentle
Glycerin Humectant & moisturiser Generally gentle
Algae Extract Hydrating marine extracts Generally gentle
Pseudoalteromonas Exopolysaccharides
Pseudoalteromonas Ferment Extract Conditioning ferment extracts Generally gentle
Ahnfeltia Concinna Extract Plant extracts Generally gentle
Arginine Hydration & barrier support Generally gentle
Glycine Hydration & barrier support Generally gentle
Alanine Hydration & barrier support Generally gentle
Serine Hydration & barrier support Generally gentle

Show the other 23 ingredients · 2 with a caution note

Valine Hydration & barrier support Generally gentle
Isoleucine Hydration & barrier support Generally gentle
Proline Hydration & barrier support Generally gentle
Threonine Hydration & barrier support Generally gentle
Histidine Hydration & barrier support Generally gentle
Phenylalanine Hydration & barrier support Generally gentle
Aspartic Acid Hydration & barrier support Generally gentle
PCA Humectant (skin's own NMF) Generally gentle
Sodium PCA Humectant (skin's own NMF) Generally gentle
Sodium Lactate Gentle AHA exfoliant Sensitive skin caution
Salicylic Acid Exfoliant & pore clearer May cause dryness
Citric Acid pH adjuster All skin types
Propanediol Humectant & solvent All skin types
Dimethyl Isosorbide Humectant & solvent All skin types
Ethoxydiglycol
Polysorbate 20 Emulsifier & solubiliser All skin types
Potassium Sorbate Preservative All skin types
Sodium Salicylate
Sodium Benzoate Preservative All skin types
Hexylene Glycol Humectant & solvent All skin types
1,2-Hexanediol Humectant & solvent All skin types
Phenoxyethanol Preservative All skin types
Caprylyl Glycol Humectant & preservative booster Generally gentle

Ingredients from the Boots.com listing, checked 19 Oct 2026, in INCI order. Brands reformulate, so check the pack if you react to an ingredient. Highlighted ingredients link to our guide. Informational only — not medical advice.

Common questions

Is The Ordinary Marine Hyaluronics fragrance-free?

Yes. No fragrance, essential oils or fragrance allergens are listed in its ingredients.

Does The Ordinary Marine Hyaluronics contain alcohol?

No drying alcohol (alcohol denat. or ethanol) is listed.

Is The Ordinary Marine Hyaluronics safe for fungal acne?

It contains 2 ingredients that fungal-acne (Malassezia) guides usually avoid: polysorbates (polysorbate 20); ferments (pseudoalteromonas ferment extract). How much they matter depends on the amount and the rest of the formula. The evidence comes mainly from lab studies of yeast growth, and fungal acne needs a diagnosis from a GP or dermatologist.

Is The Ordinary Marine Hyaluronics suitable for sensitive skin?

Its ingredient list avoids the most common irritants: no fragrance, essential oils, drying alcohol or strong exfoliating acids are listed. Reactions are individual, so patch-test anything new.