PRODUCT REVIEW

COSRX The Hyaluronic Acid 3 Serum

Works for:

based on ingredients and %

Moisturizing
Anti-aging

Can it cause trouble?

Key actives

Ceramide np 0.25% - 0.5%Phytosphingosine 0.25% - 0.45%

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Appears in 4 routines

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Cheaper alternatives

Simply Pure - Superdrug Simply Pure Hydrating Serum

Price: $4.35

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BYOMA - Hydrating Serum

Price: $15.99

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Product summary

"COSRX - The Hyaluronic Acid 3 Serum" is effective for: Moisturizing

This product could be helpful for: Anti-aging, but its actives are not the most effective or are not well-studied.

Ingredient callouts

Ceramides (phytosphingosine 0.25% - 0.45% and ceramide np 0.25% - 0.50%). Ceramides are an important part of our natural skin barrier. The Ceramides used in skincare are synthetic or come from plants. They help soften the skin and can help "fill the gaps" in the skin barrier, keeping the skin hydrated and resilient for longer.
Humectants (arginine 0.25% - 0.40%, glutamic acid 0.25% - 0.45%, glycine 0.25% - 0.45%, alanine 0.25% - 0.50%, glyceryl acrylate/acrylic acid copolymer 0.40% - 0.60%, pca 0.40% - 0.60%, sodium lactate 0.45% - 0.65%, sodium pca 0.45% - 0.70%, betaine 1.00% - 1.30%, sodium hyaluronate 3.00% (declared) and glycerin 3.00% - 3.60%). These ingredients help attract water to the upper layer of the skin and improve the skin hydration.

About the brand

According to Cruelty-Free Kitty "COSRX" is cruelty free and so is its parent company.

Price

The product retails for 27.95A$ in Australia, from 19.89$ up to 25.00$ in the United States and for 28.00£ in the United Kingdom.

For a detailed price comparison: click here.

What can the product work for?

Moisturizing

What does the product description say?

Benefits , Infuses hydration , Strengthens skin barrier , Retains moisture , Plumps skin , Provides hydrating glow to complexion

Source: Escentual

This product can help improve hydration of the skin with the two types of ingredients.

The first type is called “humectants”:
these ingredients help attract water. When humectants are on the surface of the skin, they “pull in” the moisture from the outside environment, or from within deeper layers of the skin. The following ingredients in this product do the job: alanine, arginine.

This product also contains ingredients called “occlusives”. They help reduce the speed with which our skin loses moisture to the outside environment. These ingredients also help soften the upper layer of the skin, so it feels less tight and nicer to the touch. The following ingredients in this product do the job: arginine, dimethicone.

The following ingredients in this product are especially good for supporting the skin barrier and helping with the hydration level: ceramide np, phytosphingosine

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

Anti-aging

This product contains serine, threonine. These ingredients might be able to help reduce and prevent fine lines and wrinkles, improve skin elasticity and firmness, but there is not enough evidence that it actually works.

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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Can it cause trouble?

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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

Comodogenic ingredients

We couldn't find any comodogenic ingredients in this product

All ingredients

water 45% - 55%

Irritation risk:

Plain old water

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

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

	COSRX - The Hyaluronic Acid 3 Serum	MEDI-PEEL - Luminous Silk Oil Serum Sponsored	The INKEY List CA - Ceramide Serum	MEDI-PEEL - Luminous Silk Oil Serum	AHC - Hydrating Korean Skincare Aqualuronic Face Serum	Simply Pure - Superdrug Simply Pure Hydrating Serum	MEDIHEAL - Baobab Soothing Moisture Serum	Skin first - Hyaluronic acid + ceramide booster	BYOMA - Hydrating Serum	Beplain - Multi Hyaluronic Acid Ampoule	Alpha-H - Vitamin E Serum with Macadamia	Paula's choice - Hyaluronic Acid Booster
Price
WIMJ similarity score		61%	63%	61%	61%	59%	59%	59%	59%	57%	57%	57%
Key ingredients	phytosphingosine ceramide np +17 more	Common: ceramide np phytosphingosine +10 more Other: niacinamide acetyl octapeptide-3 +28 more	Common: phytosphingosine ceramide np +11 more Other: ceramide ap ceramide eop +5 more	Common: ceramide np phytosphingosine +10 more Other: niacinamide acetyl octapeptide-3 +28 more	Common: ceramide np phytosphingosine +11 more Other: copper tripeptide-1 niacinamide +25 more	Common: ceramide np phytosphingosine +7 more Other: lactic acid ceramide ap +3 more	Common: ceramide np phytosphingosine +7 more Other: copper tripeptide-1 gluconolactone +22 more	Common: ceramide np phytosphingosine +5 more Other: panthenol ceramide ap +6 more	Common: ceramide np phytosphingosine +3 more Other: squalane	Common: ceramide np phytosphingosine +9 more Other: anhydroxylitol adenosine +7 more	Common: ceramide np phytosphingosine +3 more Other: ceramide eop ceramide ap +3 more	Common: ceramide np phytosphingosine +3 more Other: adenosine panthenol +4 more
Irritancy	IRRITANCY MEDIUM	IRRITANCY MEDIUM	IRRITANCY MEDIUM	IRRITANCY MEDIUM	IRRITANCY MEDIUM	IRRITANCY LOW	IRRITANCY MEDIUM	IRRITANCY LOW	IRRITANCY MEDIUM	IRRITANCY MEDIUM	IRRITANCY LOW	IRRITANCY LOW
Potential Irritants	alcohol Has skin benefit? caprylhydroxamic acid Has skin benefit? +12 more	rosa damascena flower water Has skin benefit? caprylyl glycol Has skin benefit? +13 more	benzyl alcohol Has skin benefit? dehydroacetic acid Has skin benefit? +7 more	rosa damascena flower water Has skin benefit? caprylyl glycol Has skin benefit? +13 more	eucalyptus globulus leaf extract Has skin benefit? ascorbic acid Has skin benefit? +15 more	propylene glycol Has skin benefit? disodium edta Has skin benefit? +8 more	chlorella vulgaris extract Has skin benefit? caprylyl glycol Has skin benefit? +8 more	citric acid Has skin benefit? sodium dehydroacetate Has skin benefit? +4 more	glyceryl oleate Has skin benefit? caprylhydroxamic acid Has skin benefit? +10 more	coptis japonica extract Has skin benefit? gardenia florida fruit extract Has skin benefit? +10 more	citric acid Has skin benefit? sodium lauroyl lactylate Has skin benefit? +4 more	ethylhexylglycerin Has skin benefit? citric acid Has skin benefit? +1 more
All ingredients	water Has skin benefit? butylene glycol Has skin benefit? +41 more	pearl extract Has skin benefit? propanediol Has skin benefit? +83 more	water Has skin benefit? butylene glycol Has skin benefit? +36 more	pearl extract Has skin benefit? propanediol Has skin benefit? +83 more	water Has skin benefit? methyl gluceth-20 Has skin benefit? +83 more	water Has skin benefit? caprylic/capric triglyceride Has skin benefit? +29 more	water Has skin benefit? propanediol Has skin benefit? +62 more	water Has skin benefit? sodium hyaluronate Has skin benefit? +27 more	water Has skin benefit? glycerin Has skin benefit? +27 more	water Has skin benefit? methylpropanediol Has skin benefit? +48 more	water Has skin benefit? glycerin Has skin benefit? +23 more	water Has skin benefit? glycerin Has skin benefit? +20 more

PRODUCT REVIEW

COSRX The Hyaluronic Acid 3 Serum

Works for:

Can it cause trouble?

Key actives

Cheaper alternatives

Product summary

Ingredient callouts

About the brand

Price

What can the product work for?

Works for

Moisturizing

What does the product description say?

Anti-aging

Honesty check

How honest is this product?

Buy now

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Can it cause trouble?

Potential irritants

Comodogenic ingredients

User reviews (0)

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Ingredients & concentrations

All ingredients

Key Actives

Potential irritants

Comodogenic ingredients

All ingredients

Ingredient list view

Sources