The Ordinary
Hyaluronic Acid 2% + B5 (Original Formulation)A serum built around Vitamin C derivative and Vitamin C, for hydration and barrier repair.
A serum built around Hyaluronic acid and Panthenol, for hydration and barrier repair.
Brand price
AUD 84.95 · checked 5 Oct 2026 · brand's site
Brand price
USD 8.01 · checked 25 Sept 2026 · brand's site
At a Glance
They come out differently on Fragrance-free and EU-allergen-free; those rows are shaded. Tap any answer to see why.
Key Ingredients
Hyaluronic acid1
Hyaluronic acid and its salts; a humectant that binds water to the skin.
Hyaluronic acid2
Hyaluronic acid and its salts; a humectant that binds water to the skin.
Benefits
Hydrating4
Boosts hydration and relieves dry, tight skin.
Glycerin, Methyl Gluceth-20, Propanediol, Sodium Hyaluronate
Barrier Repair4
Strengthens and restores the skin's natural barrier.
Caprylyl Glycol, Glycerin, Glycyrrhiza Glabra Root Extract, Vitis Vinifera Seed Extract
Hydrating6
Boosts hydration and relieves dry, tight skin.
Ethoxydiglycol, Glycerin, Panthenol, Propanediol, Sodium Hyaluronate, Sodium Hyaluronate Crosspolymer
Barrier Repair3
Strengthens and restores the skin's natural barrier.
Concerns
May Worsen Seborrheic Dermatitis1
May feed the yeast involved in seborrheic dermatitis.
May Worsen Irritation2
May cause stinging, redness or sensitivity.
May Worsen Eczema2
May worsen itching or irritation for eczema-prone skin.
May Worsen Rosacea2
Can trigger flare-ups in rosacea-prone skin.
May Worsen Keratosis Pilaris1
May clog follicles or strip skin prone to keratosis pilaris.
Ingredients Side-by-side
Skin Conditioning
- Vitamin C
- Vitamin C derivative (stable)
- Antioxidant
- Brightening
- Dark Spots
Humectant
Skin Conditioning
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
Aqua
Solvent
Propanediol
Solvent, Viscosity Controlling
Propanediol is the organic compound that conforms to the formula
Learn more about Propanediol →Glycerin
Denaturant, Fragrance, Hair Conditioning, Humectant, Oral Care, Perfuming, Humectant, Skin Protecting, Solvent, Viscosity Controlling
Glycerin may be plant, synthetic or animal depending on the supplier.
Learn more about Glycerin →Phenoxyethanol
Antimicrobial, Preservative
Phenoxyethanol is the aromatic ether alcohol that conforms to the formula:
Learn more about Phenoxyethanol →Citric Acid
Buffering, Chelating, Fragrance
Citric Acid is an AHA.
Learn more about Citric Acid →Sodium Hyaluronate
Humectant, Skin Conditioning
Sodium Hyaluronate is a hyaluronic acid.
Learn more about Sodium Hyaluronate →Caprylyl Glycol
Deodorant, Hair Conditioning, Skin Conditioning, Emollient
Caprylyl Glycol is the diol that conforms to the formula
Learn more about Caprylyl Glycol →
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