The Ordinary Marine Hyaluronics

The Ordinary Marine Hyaluronics

Efficacy75/100IrritancyLow

Works for

Moisturizing
Glycerin, Algae extract + 14 more
Works
What the product description says
“Marine Hyaluronics”
From product name

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: ahnfeltia concinna extract, alanine.

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, algae extract.

GlycerinKey active· HumectantEffect: HighOne of the best moisturizing ingredients. Naturally present in skin. It attracts water to the upper layer of the skin working as a humectant~3.8–5.7%
Algae extractKey active· Humectant, EmollientEffect: HighPlant extract that helps the skin to attract water and make it more smooth for touch. Also shows promise of anti-aging properties, but research is not extensive yet~3.5–5.3%
Ahnfeltia concinna extractKey active· HumectantEffect: HighAn algae extract that helps attract water to the upper layer of the skin. Also used to create a thicker product texture~1.6–2.5%
ArginineKey active· Humectant, OcclusiveEffect: HighAn amino acid that is naturally present in skin and helps keep it hydrated. When used together with AHAs, it can reduce their irritating effect on the skin~1.4–2.1%
GlycineKey active· HumectantEffect: HighHelps to attract water to the upper layer of the skin and can help restore the skin barrier function~1.2–1.8%
AlanineKey active· HumectantEffect: HighAn amino-acid that helps to attract water to the upper layer of the skin and might help to lighten the skin, but solid evidence is lacking~1–1.5%
SerineKey activeEffect: HighAn 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~0.6–1.4%
IsoleucineKey activeEffect: HighAn amino acid that can help attract water to the upper layer of the skin and support skin's barrier function~0.4–0.9%
ThreonineKey activeEffect: HighAn 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~0.35–0.75%
ProlineKey activeEffect: Medium~0.35–0.85%
Aspartic acidKey active· HumectantEffect: HighAn amino-acid that helps increase skin hydration and might help to slightly improve skin firmness, potentially reducing lines and wrinkles~0.2–0.75%
HistidineKey active· HumectantEffect: High~0.2–0.8%
PcaKey active· HumectantEffect: HighNaturally present in skin and helps to attract water to its upper layer~0.2–0.7%
Sodium pcaKey active· HumectantEffect: HighNaturally present in skin and helps to attract water to its upper layer~0.15–0.65%
Sodium lactateKey active· HumectantEffect: HighHelps attract water to the upper layer of the skin. Is often used to adjust the pH level of the product~0.15–0.6%
Caprylyl glycol· Humectant, EmollientEffect: LowHelps preserve products and creates a nice product texture~0.05–0.2%

Can it cause trouble?

Irritancy
9 flagged ingredients
Low risk
We flag 9 ingredients with irritancy potential; the product's overall irritancy is low. The table lists each ingredient's own rating.
IngredientFunctionIrritationEst. amount
Salicylic acidUsed for skin exfoliation. It has an anti-inflammatory and anti-bacterial effect, helps to unclog pores, prevent blemishes and speed up healing of the existing ones. Sometimes referred to as a BHA (beta-hydroxy acid)High~0.15–0.55%est.
Sodium lactateHelps attract water to the upper layer of the skin. Is often used to adjust the pH level of the productMedium~0.15–0.6%est.
Citric acidCan work as an exfoliant but is typically used to adjust the product pHMedium~0.15–0.55%est.
EthoxydiglycolHelps to improve the product consistencyMedium~0.1–0.4%est.
Potassium sorbateA preservativeMedium~0.1–0.4%est.
Sodium salicylateThe salt of salicylic acid. Helps exfoliate the upper layer of the skin. Can also work to preserve cosmetic productsMedium~0.05–0.3%est.
Hexylene glycolHelps create a more spreadable product textureMedium~0.05–0.25%est.
1,2-hexanediolA preservativeMedium~0.05–0.2%est.
Caprylyl glycolHelps preserve products and creates a nice product textureMedium~0.05–0.2%est.
Comedogenic
1 ingredient rated 2 or more on the 0–5 pore-clogging scale
1 flagged
These ingredients have a comedogenic rating of 2 or more on a 0–5 scale; the table shows each one's rating. In leave-on products they can clog pores in acne-prone skin.
IngredientFunctionRatingEst. amount
Algae extractPlant extract that helps the skin to attract water and make it more smooth for touch. Also shows promise of anti-aging properties, but research is not extensive yet3/5~3.5–5.3%est.

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Ingredients

Filter by role to see what each ingredient is doing.

Water~40–60%
Formula
Irritation risk
Low

Plain old water

More about Water
Glycerin~3.8–5.7%
Key active
Irritation risk
Low
Works for
Moisturizing

One of the best moisturizing ingredients. Naturally present in skin. It attracts water to the upper layer of the skin working as a humectant

More about Glycerin
Algae extract~3.5–5.3%
Key activeComedogenic 3/5
Irritation risk
Low
Comedogenicity
3/5
Works for
MoisturizingAnti-aging

Plant extract that helps the skin to attract water and make it more smooth for touch. Also shows promise of anti-aging properties, but research is not extensive yet

More about Algae extract
Pseudoalteromonas exopolysaccharides~2.7–4%
Formula
Pseudoalteromonas ferment extract~2–3%
Formula
Ahnfeltia concinna extract~1.6–2.5%
Key active
Irritation risk
Low
Works for
Moisturizing

An algae extract that helps attract water to the upper layer of the skin. Also used to create a thicker product texture

More about Ahnfeltia concinna extract
Arginine~1.4–2.1%
Key active
Irritation risk
Low
Works for
Moisturizing

An amino acid that is naturally present in skin and helps keep it hydrated. When used together with AHAs, it can reduce their irritating effect on the skin

More about Arginine
Glycine~1.2–1.8%
Key active
Irritation risk
Low
Works for
Moisturizing

Helps to attract water to the upper layer of the skin and can help restore the skin barrier function

More about Glycine
Alanine~1–1.5%
Key active
Irritation risk
Low
Works for
MoisturizingEvens skin tone

An amino-acid that helps to attract water to the upper layer of the skin and might help to lighten the skin, but solid evidence is lacking

More about Alanine
Serine~0.6–1.4%
Key active
Irritation risk
Low
Works for
MoisturizingAnti-aging

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

More about Serine
Valine~0.45–1.1%
Formula
Irritation risk
Low
More about Valine
Isoleucine~0.4–0.9%
Key active
Irritation risk
Low
Works for
Moisturizing

An amino acid that can help attract water to the upper layer of the skin and support skin's barrier function

More about Isoleucine
Proline~0.35–0.85%
Key active
Irritation risk
Low
Works for
Moisturizing
More about Proline
Threonine~0.35–0.75%
Key active
Irritation risk
Low
Works for
MoisturizingAnti-aging

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

More about Threonine
Histidine~0.2–0.8%
Key active
Irritation risk
Low
Works for
Moisturizing
More about Histidine
Phenylalanine~0.3–0.7%
Formula
Irritation risk
Low
More about Phenylalanine
Aspartic acid~0.2–0.75%
Key active
Irritation risk
Low
Works for
MoisturizingAnti-aging

An amino-acid that helps increase skin hydration and might help to slightly improve skin firmness, potentially reducing lines and wrinkles

More about Aspartic acid
Pca~0.2–0.7%
Key active
Irritation risk
Low
Works for
Moisturizing

Naturally present in skin and helps to attract water to its upper layer

More about Pca
Sodium pca~0.15–0.65%
Key active
Irritation risk
Low
Works for
Moisturizing

Naturally present in skin and helps to attract water to its upper layer

More about Sodium pca
Sodium lactate~0.15–0.6%
Key activeIrritant · medium
Irritation risk
Medium
Works for
Moisturizing

Helps attract water to the upper layer of the skin. Is often used to adjust the pH level of the product

More about Sodium lactate
Salicylic acid~0.15–0.55%
Irritant · high
Irritation risk
High
Works for
Anti-blemishAnti-inflammatoryExfoliationAntibacterialEvens skin tone

Used for skin exfoliation. It has an anti-inflammatory and anti-bacterial effect, helps to unclog pores, prevent blemishes and speed up healing of the existing ones. Sometimes referred to as a BHA (beta-hydroxy acid)

More about Salicylic acid
Citric acid~0.15–0.55%
Irritant · medium
Irritation risk
Medium

Can work as an exfoliant but is typically used to adjust the product pH

More about Citric acid
Propanediol~0.15–0.55%
Formula
Irritation risk
Low

Acts as a solvent for other ingredients. Speeds up the absorption of other ingredients into the skin

More about Propanediol
Dimethyl isosorbide~0.1–0.5%
Formula
Irritation risk
Low

Used to dissolve other ingredients in a product and can enhance their ability to penetrate the skin

More about Dimethyl isosorbide
Ethoxydiglycol~0.1–0.4%
Irritant · medium
Irritation risk
Medium

Helps to improve the product consistency

More about Ethoxydiglycol
Polysorbate 20~0.15–0.5%
Formula
Irritation risk
Low
Works for
Cleansing

Helps oil and water mix together

More about Polysorbate 20
Potassium sorbate~0.1–0.4%
Irritant · medium
Irritation risk
Medium

A preservative

More about Potassium sorbate
Sodium salicylate~0.05–0.3%
Irritant · medium
Irritation risk
Medium
Works for
Anti-aging

The salt of salicylic acid. Helps exfoliate the upper layer of the skin. Can also work to preserve cosmetic products

More about Sodium salicylate
Sodium benzoate~0.05–0.2%
Formula
Irritation risk
Low

A preservative

More about Sodium benzoate
Hexylene glycol~0.05–0.25%
Irritant · medium
Irritation risk
Medium
Works for
Cleansing

Helps create a more spreadable product texture

More about Hexylene glycol
1,2-hexanediol~0.05–0.2%
Irritant · medium
Irritation risk
Medium

A preservative

More about 1,2-hexanediol
Phenoxyethanol~0.05–0.2%
Formula
Irritation risk
Low

A preservative. It helps prevent bacterial growth in cosmetic products

More about Phenoxyethanol
Caprylyl glycol~0.05–0.2%
Irritant · medium
Irritation risk
Medium
Works for
Moisturizing

Helps preserve products and creates a nice product texture

More about Caprylyl glycol
Ingredient list view

Water, Glycerin, Algae extract, Pseudoalteromonas exopolysaccharides, Pseudoalteromonas ferment extract, Ahnfeltia concinna extract, Arginine, Glycine, Alanine, Serine, Valine, Isoleucine, Proline, Threonine, Histidine, Phenylalanine, Aspartic acid, Pca, Sodium pca, Sodium lactate, Salicylic acid, Citric acid, Propanediol, Dimethyl isosorbide, Ethoxydiglycol, Polysorbate 20, Potassium sorbate, Sodium salicylate, Sodium benzoate, Hexylene glycol, 1,2-hexanediol, Phenoxyethanol, Caprylyl glycol

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Worth comparing, line by line.

Match % combines shared ingredients, the first five ingredients, shared actives and hero ingredients, irritancy (lower counts in the alternative's favour), texture and body area. Only products in the same routine step are compared.

Side-by-side comparison of this product against its closest alternatives
The OrdinaryMarine HyaluronicsYOUR PRODUCTPaula's choiceAntioxidant Enriched Natural MoisturizerDCLSkincare Spot TherapyPure BlendsHydrating Serum
Match—78%75%75%
Price$8.00$31.00+$23.00$38.82+$30.82—
Shared key ingredients—12 of 1513 of 153 of 15
Key difference—Borago Officinalis Seed OilNiacinamideUrea
Irritancy Low Medium High Low
Drying alcohol—— Contains drying alcohol —
View product Shop Shop Shop

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Product summary

"The Ordinary - Marine Hyaluronics" could be helpful for: Moisturizing, but its actives are not the most effective or are not well-studied.

Ingredient callouts

  • Humectants (sodium pca 0.15% - 0.65%, sodium lactate 0.15% - 0.60%, pca 0.20% - 0.70%, histidine 0.20% - 0.80%, glycerin 3.80% - 5.70%, aspartic acid 0.20% - 0.75%, algae extract 3.50% - 5.30%, ahnfeltia concinna extract 1.60% - 2.50%, alanine 1.00% - 1.50%, arginine 1.40% - 2.10% and glycine 1.20% - 1.80%). 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 "The Ordinary" is cruelty free, but its parent company is not.

Price

The product retails from 6.90£ up to 13.00£ in the United Kingdom, for 15.30A$ in Australia, from 6.80$ up to 9.20$ in the United States and for 67.00HK$ in Hong Kong.

For a detailed price comparison: click here.

Sources cited in this review

Every concentration estimate and effectiveness label is anchored to one of these 17 studies and safety reviews.

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The Ordinary Marine Hyaluronics
The OrdinaryMarine Hyaluronics

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As an Amazon Associate, WIMJ earns from qualifying purchases.