PRODUCT REVIEW
COSRX The Hyaluronic Acid 3 Serum
Can it cause trouble?
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Product summary
What can the product work for?
Works for
Moisturizing
What does the product description say?
Benefits , Infuses hydration , Strengthens skin barrier , Retains moisture , Plumps skin , Provides hydrating glow to complexion
sodium lactate
0.45% -
0.65%
Irritation risk:
Concentration: Effectiveness: HIGH
Helps attract water to the upper layer of the skin. Is often used to adjust the pH level of the product
threonine
0.25% -
0.45%
Irritation risk:
Concentration: Effectiveness: HIGH
An amino-acid that helps to attract water to the upper layer of the skin. In combination with other amino-acids, might help to reduce fine lines and wrinkles
betaine
1% -
1.3%
Irritation risk:
Concentration: Effectiveness: HIGH
Helps attract water to the upper layer of the skin and improves the product texture
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Anti-aging
serine
0.3% -
0.5%
Irritation risk:
Concentration: Effectiveness:
MEDIUM
An amino-acid that helps to attract water to the upper layer of the skin. In combination with other amino-acids, might help to reduce fine lines and wrinkles
threonine
0.25% -
0.45%
Irritation risk:
Concentration: Effectiveness:
MEDIUM
An amino-acid that helps to attract water to the upper layer of the skin. In combination with other amino-acids, might help to reduce fine lines and wrinkles
lactic acid
0.1% -
0.2%
Irritation risk:
Concentration: Insufficient!
An exfoliating and moisturizing alpha-hydroxy acid (AHA). Typically causes less irritation than other AHAs, for example, glycolic acid. At high concentrations (about 15%), lactic acid can help reduce lines and wrinkles. Recent studies show that lactic acid can support the "good" bacteria living on skin's surface (healthy skin microbiome)
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Honesty check
How honest is this product?
| Promise | Can it deliver? |
|---|---|
| Moisturizing |
Total Promises Fulfilled score:
100/100.
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US Retailers
In stock
Size: 0.0440924524 pounds
COSRX Pure Hyaluronic acid 3% Serum with Sodium Hyaluronic Acid, Hydration & Moisture Boosting Facial Serum for Fine Lines and Wrinkles, Plump and Repair Dry Skin, 0.67 fl.oz / 20 ml, Animal Testing-Free, Artificial Fragrance-Free, Parabens-Free
Price as of 2/11/2025 5:30 GMT.
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AU Retailers
CA Retailers
UK Retailers
Can it cause trouble?
- Overall product irritation risk
- Acne & comedogenic risk ingredients: 0
Potential irritants
alcohol
0.15% -
0.25%
Irritation risk:
Works for:
Antibacterial
Can be drying and contribute to skin irritation. Used in formulars to dissolve other ingredients, create a thinner product consistency or for its antibacterial properties
pentylene glycol
2.3% -
2.8%
Irritation risk:
Works for:
Moisturizing
Used to preserve products, dissolve other ingredients and create a nice product texture
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Comodogenic ingredients
No comodogenic ingredients detected
User reviews (0)
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Other:
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| Irritancy | IRRITANCY
MEDIUM
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MEDIUM
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MEDIUM
| IRRITANCY
MEDIUM
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MEDIUM
| IRRITANCY
LOW
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MEDIUM
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LOW
| IRRITANCY
MEDIUM
| IRRITANCY
MEDIUM
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LOW
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LOW
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Ingredients & concentrations
All ingredients
Key Actives
ceramide np
0.25% -
0.5%
Irritation risk:
Works for:
Moisturizing,
Anti-inflammatory,
Reduces irritation
A type of lipid similar to ceramides naturally present in skin. Helps to soften the upper layer of the skin and supports the skin barrier function to keep it hydrated. Can help to prevent inflammation in skin
phytosphingosine
0.25% -
0.45%
Irritation risk:
Works for:
Moisturizing,
Anti-inflammatory,
Anti-blemish
A type of lipid that is naturally present in skin. It might help in repairing skin barrier function and has anti-bacterial effect
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Potential irritants
alcohol
0.15% -
0.25%
Irritation risk:
Works for:
Antibacterial
Can be drying and contribute to skin irritation. Used in formulars to dissolve other ingredients, create a thinner product consistency or for its antibacterial properties
pentylene glycol
2.3% -
2.8%
Irritation risk:
Works for:
Moisturizing
Used to preserve products, dissolve other ingredients and create a nice product texture
Show more
Comodogenic ingredients
We couldn't find any comodogenic ingredients in this product
All ingredients
butylene glycol
5.6% -
6.8%
Irritation risk:
Works for:
Moisturizing
Used to create a nice product texture and help delivery of other ingredients. Might be somewhat helpful in attracting water to the upper layer of the skin
propanediol
4% -
4.9%
Irritation risk:
Acts as a solvent for other ingredients. Speeds up the absorption of other ingredients into the skin
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Ingredient list view
Water, Butylene glycol, Propanediol, Glycerin, Sodium hyaluronate, Pentylene glycol, 1,2-hexanediol, Diethoxyethyl succinate, Sodium polyacryloyldimethyl taurate, Betaine, Xanthan gum, Dimethicone, Hydroxyethyl acrylate/sodium acryloyldimethyl taurate copolymer, Sodium pca, Sodium lactate, Pca, Glyceryl acrylate/acrylic acid copolymer, Hydrogenated lecithin, Ethylhexylglycerin, Serine, Alanine, Glycine, Sodium phytate, Sorbitan isostearate, Pvm/ma copolymer, Glutamic acid, Citric acid, Lysine hcl, Threonine, Arginine, Sodium methyl stearoyl taurate, Proline, Ceramide np, Cholesterol, Caprylic/capric triglyceride, Phytosphingosine, Stearic acid, Oleic acid, Alcohol, Tocopherol, Lactic acid, Caprylyl glycol, Caprylhydroxamic acid
Sources
- Glycerol and the skin: holistic approach to its origin and functions
- Hyaluronic acid: A key molecule in skin aging
- Hyaluronan (Hyaluronic Acid): a natural moisturizer for skin care
- The influence of alkane chain length on the skin irritation potential of 1,2-alkanediols
- Dimethicone as a protective ingredient in topical medications
- Final Report on the Safety Assessment of Dimethicone Copolyol
- Topical palmitoyl pentapeptide provides improvement in photoaged human facial skin
- Combination of amino acids reduces pigmentation in B16F0 melanoma cells
- Effect of Topical Application of Glycine and Proline on Recalcitrant Leg Ulcers of Prolidase Deficiency
- Functional glycine receptor in cultured human keratinocytes
- Skin hydration is significantly increased by a cream formulated to mimic the skin’s own natural moisturizing systems
- Topically Applied Ceramides Interact with the Stratum Corneum Lipid Matrix in Compromised Ex Vivo Skin
- Anti-Inflammatory and Skin Barrier Repair Effects of Topical Application of Some Plant Oils
- https://www.sciencedirect.com/science/article/pii/0168365995000887
- Vitamin E in dermatology
- Vitamin E and Skin Health
- Epidermal and dermal effects of topical lactic acid