The Inkey List
Hyaluronic Acid SerumThe Ordinary
Multi-Peptide + HA SerumA serum built around Hyaluronic acid, for hydration and anti-aging.
A serum built around Peptides and Hyaluronic acid, for hydration and smoothing.
Brand price
USD 23.00 · checked 26 Sept 2026 · brand's site
Brand price
USD 17.91 · checked 25 Sept 2026 · brand's site
At a Glance
Every check both products could be assessed on comes out the same. Tap any answer to see why.
Key Ingredients
Hyaluronic acid2
Hyaluronic acid and its salts; a humectant that binds water to the skin.
Peptides2
Short amino-acid chains used as signalling actives.
Hyaluronic acid2
Hyaluronic acid and its salts; a humectant that binds water to the skin.
Benefits
Hydrating6
Boosts hydration and relieves dry, tight skin.
Butylene Glycol, Glycerin, Hyaluronic Acid, Propanediol, Sodium Hyaluronate, Sodium Lactate
Anti-Aging2
Softens lines and helps skin look youthful.
Hydrating15
Boosts hydration and relieves dry, tight skin.
Acetyl Hexapeptide-8, Butylene Glycol, Ethoxydiglycol, Fructose, Glucose, Glycerin, Histidine, Maltose, PCA, Sodium Hyaluronate, Sodium Hyaluronate Crosspolymer, Sodium Lactate, Sodium PCA, Trehalose, Urea
Barrier Repair3
Strengthens and restores the skin's natural barrier.
Reduces Irritation2
Eases discomfort and supports skin resilience.
Concerns
May Worsen Seborrheic Dermatitis3
May feed the yeast involved in seborrheic dermatitis.
Palmitoyl Tetrapeptide-7, Palmitoyl Tripeptide-1, Polysorbate 20
May Worsen Seborrheic Dermatitis7
May feed the yeast involved in seborrheic dermatitis.
Acetyl Hexapeptide-8, Acetylarginyltryptophyl Diphenylglycine, Palmitoyl Tetrapeptide-7, Palmitoyl Tripeptide-1, Palmitoyl Tripeptide-38, PEG-40 Hydrogenated Castor Oil, Polysorbate 20
Ingredients Side-by-side
Skin Conditioning
Leuconostoc/Radish Root Ferment Filtrate
Antimicrobial
Skin Conditioning
Humectant
- Fatty alcohols (Malassezia)
- Peptides
- Anti-Aging
- Firming
- Smoothing
- May Worsen Seborrheic Dermatitis
Palmitoyl Tripeptide-1 (in both products)
Skin Conditioning
- Fatty esters (glyceryl stearate, PEG-100 stearate)
- Peptides
- Anti-Aging
- Firming
- May Worsen Seborrheic Dermatitis
Palmitoyl Tetrapeptide-7 (in both products)
Skin Conditioning
- Fatty esters (glyceryl stearate, PEG-100 stearate)
- Peptides
- Anti-Aging
- Firming
- Reduces Irritation
- May Worsen Seborrheic Dermatitis
Skin Conditioning
- Fatty esters (glyceryl stearate, PEG-100 stearate)
- May Worsen Seborrheic Dermatitis
Dipeptide Diaminobutyroyl Benzylamide Diacetate
Skin Conditioning
Acetylarginyltryptophyl Diphenylglycine
Skin Conditioning
- Fatty alcohols (Malassezia)
- May Worsen Seborrheic Dermatitis
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
Sodium Hyaluronate
Humectant, Skin Conditioning
Sodium Hyaluronate is a hyaluronic acid.
Learn more about Sodium Hyaluronate →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 →Butylene Glycol
Fragrance, Humectant, Skin Conditioning, Solvent, Viscosity Controlling
Butane-1,3-diol (CAS No. 107-88-0/ EC No. 203-529-7) (R)-(-)-butane-1,3-diol” (CAS No. 6290-03-5/ EC No. 228-532-0)
Learn more about Butylene Glycol →Phenoxyethanol
Antimicrobial, Preservative
Phenoxyethanol is the aromatic ether alcohol that conforms to the formula:
Learn more about Phenoxyethanol →Carbomer
Emulsion Stabilising, Gel Forming, Viscosity Controlling
2-Propenoic acid, polymer with 2,2-bis(hydroxymethyl)propane-1,3-diol 2-propenyl ether
Learn more about Carbomer →Sodium Lactate
Buffering, Humectant, Keratolytic
Sodium Lactate is lactic acid.
Learn more about Sodium Lactate →Polysorbate 20
Cleansing, Emulsifying
Polysorbate 20 isn't fungal acne safe.
Learn more about Polysorbate 20 →Palmitoyl Tetrapeptide-7
Skin Conditioning
Palmitoyl Tetrapeptide-7 isn't fungal acne safe.
Learn more about Palmitoyl Tetrapeptide-7 →Palmitoyl Tripeptide-1
Skin Conditioning
Palmitoyl Tripeptide-1 isn't fungal acne safe.
Learn more about Palmitoyl Tripeptide-1 →
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