Marine Hyaluronics
The Ordinary Marine Hyaluronics is a serums, essence, ampoule. Our analysis of its 33 ingredients (30 low-risk) rates it Excellent (97/100). Based on its ingredients, it looks well-suited to oily / acne-prone and dry skin.
The Ordinary Marine Hyaluronics is a serums, essence, ampoule. Our analysis of its 33 ingredients (30 low-risk) rates it Excellent (97/100). Based on its ingredients, it looks well-suited to oily / acne-prone and dry skin.
Summarised from our ingredient analysis — not brand marketing copy.
The evidence
| EWG | CIR | Ingredient Name & Cosmetic Functions | Notes |
|---|---|---|---|
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1,2-Hexanediol
(Solvent) |
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Algae Extract
(Fragrance, Humectant, Oral Care Agent, Skin Conditioning, Emollient) |
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Glycine
(Buffering Agent, Fragrance, Hair Conditioning, Skin Conditioning Agent Miscellaneous, Antistatic Agent, Skin Conditioning) |
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Dimethyl Isosorbide
(Solvent, Viscosity Decreasing Agent, Viscosity Controlling) |
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Valine
(Fragrance, Hair Conditioning, Skin Conditioning, Antistatic Agent, Masking) |
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Serine
(Fragrance, Hair Conditioning, Skin Conditioning, Antistatic Agent, Masking) |
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Sodium Salicylate
(Denaturant, Preservative) |
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Pseudoalteromonas Ferment Extract
(Humectant) |
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Aspartic Acid
(Fragrance, Hair Conditioning, Skin Conditioning, Antistatic Agent, Masking) |
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Ahnfeltia Concinna Extract
(Gel Forming, Skin Protecting) |
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Alanine
(Fragrance, Hair Conditioning, Skin Conditioning, Antistatic Agent, Masking) |
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Arginine
(Fragrance, Hair Conditioning, Skin Conditioning, Antistatic Agent, Masking) |
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Ethoxydiglycol
(Fragrance, Solvent, Viscosity Decreasing Agent, Humectant, Perfuming) |
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Isoleucine
(Fragrance, Hair Conditioning, Skin Conditioning, Antistatic Agent) |
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Water
(Solvent) |
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Caprylyl Glycol
(Hair Conditioning, Skin Conditioning, Emollient, Humectant) |
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Sodium PCA
(Hair Conditioning, Humectant, Antistatic Agent, Skin Conditioning) |
Good for Dry Skin
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Glycerin
(Denaturant, Fragrance, Hair Conditioning, Humectant, Oral Care Agent, Oral Health Care Drug, Skin Protecting, Viscosity Decreasing Agent, Perfuming, Solvent) |
Good for Dry Skin
Fungal Acne Trigger
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Threonine
(Fragrance, Hair Conditioning, Skin Conditioning, Antistatic Agent, Hair Waving Or Straightening) |
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Salicylic Acid
(Antiacne Agent, Antidandruff Agent, Corn/Callus/Wart Remover, Denaturant, Exfoliant, Fragrance, Hair Conditioning, Skin Conditioning, Keratolytic, Masking, Preservative) |
Good for Oily Skin
Bad for Sensitive Skin
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Phenylalanine
(Fragrance, Hair Conditioning, Skin Conditioning) |
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Propanediol
(Solvent, Viscosity Decreasing Agent, Viscosity Controlling) |
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Proline
(Fragrance, Hair Conditioning, Skin Conditioning) |
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Hexylene Glycol
(Fragrance, Solvent, Viscosity Decreasing Agent, Emulsifying, Perfuming, Skin Conditioning, Surfactant) |
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Histidine
(Fragrance, Hair Conditioning, Skin Conditioning, Antistatic Agent, Humectant) |
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Citric Acid
(Chelating Agent, Fragrance, Ph Adjuster, Buffering Agent, Masking) |
Bad for Sensitive Skin
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Sodium Lactate
(Buffering Agent, Exfoliant, Humectant, Keratolytic) |
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Sodium Benzoate
(Fragrance, Preservative, Anticorrosive, Masking) |
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Potassium Sorbate
(Fragrance, Preservative) |
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Polysorbate 20
(Emulsifying, Surfactant) |
Fungal Acne Trigger
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PCA
(Humectant, Moisturising) |
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Phenoxyethanol
(Fragrance, Preservative) |
Paraben
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Pseudoalteromonas Exopolysaccharides
(Skin Conditioning) |
No personal ingredient notes yet. Save ingredients to your profile to get good/bad alerts here.
How to use
General guidance from this product's category and active ingredients — always follow the directions on the package.
Trust & honesty
Contains ingredients some choose to avoid or double-check while pregnant or nursing.
Low-strength topical salicylic acid (BHA) is generally considered fine. Caution is usually reserved for high-strength leave-on products and salicylic peels.
This is general information, not medical advice. Pregnancy guidance varies and depends on concentration and your individual situation — always check with your doctor, midwife or pharmacist. How we flag this.
The concentrations these actives are typically effective at in research — not a measurement of this product.
Salicylic acid is OTC-capped at 2%; 0.5–2% is the usual leave-on range. Much below that it acts more as a soothing agent than an exfoliant.
Salicylic Acid
INCI lists don't disclose amounts, and we don't claim to know this product's levels — these are the ranges these ingredients are usually effective at, so you can tell a real formula from "fairy-dusting" a marketed active. How we estimate this.
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