The Ordinary Marine Hyaluronics

The Ordinary Marine Hyaluronics
5.0
/ 10
Moisturizing
10.0 Humectancy icon Humectancy
0.0 Occlusivity icon Occlusivity
0.8Anti-wrinkle icon/ 10
Anti-wrinkle
Rich
in Antioxidants

Review

Does The Ordinary Marine Hyaluronics work?

Based on the ingredient list analysis by CreamScan AI, these are the key benefits you can expect from using The Ordinary Marine Hyaluronics:

  • Strong humectant moisturizing. This lightweight, humectant-rich product, ideal for oily skin, has a moisturizing rating of 5.0 out of 10.
  • Little anti-wrinkle effect: The Ordinary Marine Hyaluronics has an anti-wrinkle rating of 0.8 out of 10, so you may expect a positive, although insignificant, effect on wrinkles.
  • Antioxidant protection.

Lightweight moisturizer ideal for oily skin and a humectant boost for any skincare routine

According to CreamScan analysis, The Ordinary Marine Hyaluronics is quite moisturizing, with a moisturizing rating of 5.0 out of 10.

Is it more humectant or occlusive? It is purely humectant. It has zero occlusivity (we didn't find any occlusive ingredients on the ingredient list) and a maximum humectancy of 10 out of 10, primarily due to the high content of Glycerin (est. ≈6.0%), Algae Extract (est. ≈4.0%) and Pseudoalteromonas Ferment Extract (est. ≈2.0%).

This humectant-rich product, when used alone as a moisturizer, is ideal for oily skin, providing significant hydration in a lightweight, fast-absorbing formula without any occlusive ingredients.

Tip: Certain studies suggest that humectants alone may not effectively moisturize the skin. If you use this product as your only moisturizer, we recommend following it with one that contains at least some occlusive ingredients.

But it’s not limited to oily skin - such a humectant boost will also positively contribute to the moisturizing efficacy of any skincare routine when used as a step before applying the main moisturizer. This type of formulation is typically used in serums, where a light, fast-absorbing texture is key.

Please refer to the Ratings section below for details of the moisturizing rating calculation.

Little anti-wrinkle efficacy

According to CreamScan analysis, The Ordinary Marine Hyaluronics has a minimal anti-wrinkle rating of 0.8 out of 10.

It contains one ingredient with proven anti-wrinkle efficacy: Sodium Salicylate (est. ≈0.3%), 
 a sodium salt of salicylic acid, with moderate anti-wrinkle efficacy confirmed by a single clinical study involving 30 participants (Merinville et al.). This study found that a cream containing 1% sodium salicylate reduced the average depth of periorbital wrinkles by 7% after 8 weeks of use, compared to a vehicle (the same formulation without sodium salicylate).
 
Among others, The Ordinary Marine Hyaluronics also contains Pseudoalteromonas Ferment Extract, an ingredient often marketed as effective in reducing wrinkles. However, the studies supporting the anti-wrinkle claims of Pseudoalteromonas Ferment Extract provide insufficient evidence of its efficacy according to CreamScan Research Evaluation Standards. Therefore, this ingredient does not contribute to the anti-wrinkle rating.
 
Moisturizers, when used regularly, are proven to prevent wrinkle formation and even reduce existing wrinkles. Therefore, this product, like any other moisturizer, can deliver some anti-wrinkle effects through its moisturizing action.
 

Please refer to the Ratings section below for details of the anti-wrinkle rating calculation.

Rich in skin-protecting antioxidants

We estimate that The Ordinary Marine Hyaluronics is rich (> 3%) in antioxidants, specifically Algae Extract (est. ≈4.0%).

A key benefit of antioxidants is their ability to reduce oxidative stress caused by free radicals and therefore prevent accelerated skin aging. Studies also show that antioxidants can protect against environmental damage such as UV radiation and pollution, and help reduce inflammation and skin redness.

Ingredients

Est. % Ingredient Origin Functions
75
6
4
3
2
1.5
1.3
1
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
Est. %
Water
Function:
Origin:
Glycerin
Function:
Origin:
Algae Extract
Function:
Origin:
Pseudoalteromonas Exopolysaccharides
Function:
Origin:
Pseudoalteromonas Ferment Extract
Function:
Origin:
Ahnfeltiopsis Concinna Extract
Function:
Origin:
Arginine
Function:
Origin:
Glycine
Function:
Origin:
Alanine
Function:
Origin:
Serine
Function:
Origin:
Valine
Function:
Origin:
Isoleucine
Function:
Origin:
Proline
Function:
Origin:
Threonine
Function:
Origin:
Histidine
Function:
Origin:
Phenylalanine
Function:
Origin:
Aspartic Acid
Function:
Origin:
PCA
Function:
Origin:
Sodium PCA
Function:
Origin:
Sodium Lactate
Function:
Origin:
Salicylic Acid
Function:
Origin:
Citric Acid
Function:
Origin:
Propanediol
Function:
Origin:
Dimethyl Isosorbide
Function:
Origin:
Ethoxydiglycol
Function:
Origin:
Polysorbate 20
Function:
Origin:
Potassium Sorbate
Function:
Origin:
Sodium Salicylate
Function:
Origin:
Sodium Benzoate
Function:
Origin:
Hexylene Glycol
Function:
Origin:
1,2-Hexanediol
Function:
Origin:
Phenoxyethanol
Function:
Origin:
Caprylyl Glycol
Function:
Origin:

Ratings

All humectants
17.9
6
4
2
1.3
1
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
Benchmark
10
All occlusives
0.0
None
Benchmark
20
Moisturizing rating
5.0
Ingredient Est. % Benchmark Raiting
Humectancy All humectants 17.9 10
10.0
6
4
2
1.3
1
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
Occlusivity All occlusives 0.0 20
0.0
None
Moisturizing rating
5.0
Ingredient Est. % Benchmark Humectancy
6
4
2
1.3
1
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
All humectants 17.9 10
10
All humectants
17.9
6
4
2
1.3
1
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
Benchmark
10
Ingredient Est. % Benchmark Occlusivity
None
All occlusives 0.0 20
0.0
All occlusives
0.0
None
Benchmark
20
Ingredient
Ingredient anti-wrinkle power
when present at, %
in this formula est. %
Rating
2.5 /10 1 0.3 0.8
n/a
- 2 -
Total
0.8
Sodium Salicylate
0.8
Ingredient anti-wrinkle power
2.5 /10
when present at, %
1
in this formula, est. %
0.3
Pseudoalteromonas Ferment Extract
-
Ingredient anti-wrinkle power
n/a
when present at, %
-
in this formula, est. %
2
Anti-wrinkle rating
0.8
Ingredient Est. % Benchmark
Rich in Antioxidants
4
All antioxidants 4 3 Rich in antioxidants
All antioxidants
4
Algae Extract
4
Benchmark
3
Ingredient Est. % Benchmark
Rich in Soothing
2
0.3
All soothing 2.3 5 No
All soothing
2.3
2
0.3
Benchmark
5

Ingredients explained

Water
Est. %75
Function
Origin
WaterThe most used ingredient in skincare. Its concentration defines the product texture: rich creams may have about 50% of water while a light jelly about 90%. Water doesn’t moisturize the skin by itself and is used in skincare as a solvent for other ingredients.
Glycerin
Est. %6
Function
Origin
Glycerin

The most popular moisturizing ingredient in the world. It is a powerful humectant – cheap yet very effective.

Algae Extract
Est. %4
Function
Origin
Algae ExtractThe name describes any extract made from any kind of algae. Algae extracts are moisturizing humectants – the gelatin-like polysaccharides bind and retain water, thereby hydrating the skin. Algae is a rich source of emollient and antioxidant compounds.
Pseudoalteromonas Exopolysaccharides
Est. %3
Function
Origin
Pseudoalteromonas Exopolysaccharides
Pseudoalteromonas Ferment Extract
Est. %2
Function
Origin
Pseudoalteromonas Ferment ExtractAn ingredient obtained from a bacterial culture. According to the patent holder, it produces a special glycoprotein that promotes collagen and elastin synthesis and moisturizes the skin by drawing water to it.
Ahnfeltiopsis Concinna Extract
Est. %1.5
Function
Origin
Ahnfeltiopsis Concinna Extract
Arginine
Est. %1.3
Function
Origin
ArginineA humectant amino acid used to attract water to the skin’s surface. It is a part of the skin's Natural Moisturizing Factor, a mixture of various compounds that keeps the skin’s surface well hydrated. Arginine can also be used as a pH adjuster.
Glycine
Est. %1
Function
Origin
GlycineA humectant moisturizing amino acid that is a part of skin's Natural Moisturizing Factor. Some recent studies suggest that it may have barrier repair properties.
Alanine
Est. %0.3
Function
Origin
AlanineA simple amino acid used in skincare as a humectant moisturizing ingredient. It is a part of the so-called Natural Moisturizing Factor, a complex mixture of free amino acids and other water-soluble compounds found in skin cells.
Serine
Est. %0.3
Function
Origin
SerineA non-essential amino acid, meaning that our body can produce it. It is the largest constituent of the skin's Natural Moisturizing Factor and is used in skincare as a humectant moisturizing ingredient.
Valine
Est. %0.3
Function
Origin
ValineAn essential amino acid (meaning our body cannot make it on its own and we get it from food instead). Like some other amino acids, Valine is a part of the skin's Natural Moisturizing Factor.
Isoleucine
Est. %0.3
Function
Origin
IsoleucineA humectant moisturizing, essential amino acid that is a part of the skin's Natural Moisturizing Factor. It helps to increase water content on the skin’s surface and can increase the barrier repair effects of ceramides.
Proline
Est. %0.3
Function
Origin
ProlineThe best humectant moisturizer of all the amino acids. It is a part of the skin's Natural Moisturizing Factor and increases hydration in the top layers of the skin. It also has antioxidant activity and helps to heal damaged skin.
Threonine
Est. %0.3
Function
Origin
ThreonineAn essential amino acid that may play a role in collagen production. However, more research is needed in order to confirm or deny these claims.
Histidine
Est. %0.3
Function
Origin
HistidineA humectant moisturizing amino acid with weak antioxidant effects that is a part of the skin’s Natural Moisturizing Factor. It can attract water to the skin’s surface and is slightly alkaline, thereby helping to balance a product's pH.
Phenylalanine
Est. %0.3
Function
Origin
PhenylalanineAn essential amino acid used in the treatment of vitiligo and other pigmentation issues. It is considered less effective than other anti-pigment ingredients and is often used in combination with them.
Aspartic Acid
Est. %0.3
Function
Origin
Aspartic AcidA humectant moisturizing amino acid that is a part of the skin's Natural Moisturizing Factor. It helps to retain water on the skin’s surface and is slightly acidic, thereby helping to balance the pH of a skincare product.
PCA
Est. %0.3
Function
Origin
PCAAlso known as pyrrolidone carboxylic acid, this ingredient is one of the main components of the skin's Natural Moisturizing Factor (which prevents the skin’s surface from drying out).
Sodium PCA
Est. %0.3
Function
Origin
Sodium PCAOne of the most important parts of the skin's Natural Moisturizing Factor, a mixture of various compounds that keeps the skin’s surface well hydrated. Sodium PCA is used in skincare for its fantastic humectant properties.
Sodium Lactate
Est. %0.3
Function
Origin
Sodium LactateA sodium salt of lactic acid. Its main function is as a humectant but it can also serve as a pH adjuster. Additionally, sodium lactate can also be used as a chemical exfoliant due to its close chemical relation to lactic acid.
Salicylic Acid
Est. %0.3
Function
Origin
Salicylic AcidThis effective peeling and anti-inflammatory BHA is used as an anti-acne agent and works by breaking down the junctions between dead skin cells. This results in the peeling of dead skin and the unclogging of pores.
Citric Acid
Est. %0.3
Function
Origin
Citric AcidA gently exfoliating AHA that helps to remove the top layer of dead skin cells. In comparison to other AHAs, citric acid has been shown to be one of the least effective. It is also very commonly used as a stabilizing and pH-controlling agent.
Propanediol
Est. %0.3
Function
Origin
PropanediolAn excellent solvent capable of mixing water with normally water-insoluble ingredients. It also functions as a humectant due to its water-loving alcohol groups. Propanediol can control the viscosity of a product by reducing its thickness.
Dimethyl Isosorbide
Est. %0.3
Function
Origin
Dimethyl IsosorbideA solvent for active ingredients that is claimed to help them better penetrate the outer layer of skin. It also helps to reduce the thickness of a product.
Ethoxydiglycol
Est. %0.3
Function
Origin
EthoxydiglycolA type of alcohol with humectant moisturizing properties. It also acts as a solvent, since it mixes well with a variety of other compounds, including water and even some oils.
Polysorbate 20
Est. %0.3
Function
Origin
Polysorbate 20A viscous, amber-colored liquid that functions as a solubilizer to disperse small amounts of oil into a large water phase. Polysorbate 20 is frequently used to solubilize fragrance oils into water-based emulsions.
Potassium Sorbate
Est. %0.3
Function
Origin
Potassium SorbateA preservative widely used in food and personal care products, available from natural sources or synthetically produced. Potassium sorbate works by inhibiting the growth of yeasts, molds, and some bacteria.
Sodium Salicylate
Est. %0.3
Function
Origin
Sodium Salicylate

A synthetic derivative of salicylic acid with confirmed anti-wrinkle efficacy.

Sodium Benzoate
Est. %0.3
Function
Origin
Sodium BenzoateA preservative that usually works in combination with other preservatives. It has to be at low pH (<5.5) to be effective.
Hexylene Glycol
Est. %0.3
Function
Origin
Hexylene GlycolA multifunctional ingredient that is best known for its use as a solvent. It can dissolve both water-based ingredients and oils. For this reason, it can also function as an emulsifier, allowing oil and water ingredients to mix and remain stable.
1,2-Hexanediol
Est. %0.3
Function
Origin
1,2-HexanediolA multi-functional formula helper. It is a well-studied preservtive against bacteria and can help pigments and fragrances disperse evenly in a formula.
Phenoxyethanol
Est. %0.3
Function
Origin
PhenoxyethanolThe most frequently used preservative in skincare. It is a clear, oil-like liquid synthetic substance that protects products from harmful bacteria and yeast, whilst still leaving skin microflora unharmed. It is confirmed by research to be harmless.
Caprylyl Glycol
Est. %0.3
Function
Origin
Caprylyl GlycolAn emollient that improves product spreadability and offers a silky feel on the skin. It also acts as a preservative booster that improves the efficacy of other preservatives. According to the manufacturer, it is also a humectant moisturizer.