Educational guide
The Ordinary Marine Hyaluronics Versus Niod Multi-Molecular Hyaluronic Complex
The Ordinary Marine Hyaluronics Versus Niod Multi-Molecular Hyaluronic Complex This serum is formulated around Pseudoalteromonas Ferment Extract to reduce redness. This hydrating serum is formulated around Sodium Hyaluronate Crosspolymer and Sodium Hyaluronate
This guide cannot diagnose a condition or recommend a personal treatment plan. Discuss medical questions with a qualified professional.
The Ordinary Marine Hyaluronics Versus Niod Multi-Molecular Hyaluronic Complex
This serum is formulated around Pseudoalteromonas Ferment Extract to reduce redness.
This hydrating serum is formulated around Sodium Hyaluronate Crosspolymer and Sodium Hyaluronate to hydrate skin and strengthen the skin barrier.
What's inside
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
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
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
Hydrolyzed Yeast Extract
Sodium Hyaluronate Crosspolymer
Pentylene Glycol
Sodium Hyaluronate
Hydrolyzed Sodium Hyaluronate
Sodium Butyroyl Hyaluronate
Polyacrylate Crosspolymer-6
Disodium Acetyl Glucosamine Phosphate
Betaine
Trisodium Ethylenediamine Disuccinate
Yeast Extract
Cetyl Hydroxyethylcellulose
Tamarindus Indica Seed Gum
Tremella Fuciformis Sporocarp Extract
Lecithin
Tetradecyl Aminobutyroylvalylaminobutyric Urea Trifluoroacetate
Myristoyl Nonapeptide-3
Magnesium Chloride
PPG-26-Buteth-26
PEG-40 Hydrogenated Castor Oil
Ethylhexylglycerin
Chlorphenesin
Polyglucuronic Acid
Water, Glycerin, Hydrolyzed Yeast Extract, Sodium Hyaluronate Crosspolymer, Dimethyl Isosorbide, Pentylene Glycol, Sodium Hyaluronate, Hydrolyzed Sodium Hyaluronate, Sodium Butyroyl Hyaluronate, Polyacrylate Crosspolymer-6, Disodium Acetyl Glucosamine Phosphate, Betaine, Trisodium Ethylenediamine Disuccinate, Yeast Extract, Cetyl Hydroxyethylcellulose, Tamarindus Indica Seed Gum, Tremella Fuciformis Sporocarp Extract, Lecithin, Tetradecyl Aminobutyroylvalylaminobutyric Urea Trifluoroacetate, Myristoyl Nonapeptide-3, Magnesium Chloride, Sodium Benzoate, Potassium Sorbate, PPG-26-Buteth-26, PEG-40 Hydrogenated Castor Oil, Ethylhexylglycerin, Chlorphenesin, Phenoxyethanol, Polyglucuronic Acid
Reviews
Alternatives
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
Dimethyl Isosorbide (often shortened to DMI) is a sugar-derived solvent made from sorbitol. It's used to dissolve tricky ingredients and help them mix smoothly into a formula.
Many actives sit as gritty crystals when undissolved, so DMI swoops in to full dissolve them. This helps improve texture, stability, and how evenly an active is distributed.
It does have a penetration-enhancing reputation that is a bit more nuanced than marketing suggests; a cell study on human skin found that 10% DMI didn't significantly boost the permeation of Hydroquinone, Salicylic Acid, or Octadecenedioic Acid compared to controls (though it did improve their solubility in the formula itself).
Typical usage concentrations usually range from 1-10% depending on the formula's needs; this ingredient is also well tolerated at these levels.
Glycerin (or glycerol) is a compound naturally found in your skin. It's a powerhouse humectant that pulls water into the stratum corneum.
Topically, glycerin does several things at once:
Your skin makes glycerin on its own (mostly from sebaceous oil breakdown) and shuttles it to your outermost layer of skin, or your epidermis, via aquaporin-3.
Aquaporin-3 is a transporter that is essential for normal skin hydration, elasticity, and repair. Interestingly, mice lacking in AQP3 have dry and less elastic skin that can be fully corrected with glycerin.
This ingredient is non-irritating, plays well with almost every ingredient, and works across all skin types. Typical use is anywhere between 3-10% but can go up to 79% in some leave-on products.
Just know very high concentrations (>40%) can feel tacky in low humidity.
Glycerin is the name for this ingredient in American English. British English uses Glycerol/Glycerine.
Phenoxyethanol is one of the most widely used preservatives in skincare (and for good reason!).
It has a large spectrum of antimicrobial activity and especially effective bacteria, yeast, and mold while only having a weak effect on your skin's natural microbiome.
On a cellular level, it disrupts the cell membranes of microbes by poking holes that make the cell leak. This shuts down the chemical reactions the microbe needs to make energy so it can no longer survive.
Another perk of this ingredient is that it stays functional across a wide pH range (3-10).
You'll often see it paired with boosters like Ethylhexylglycerin; one study showed that a 1:9 ratio of Ethylhexylglycerin to Phenoxyethanol damages bacterial membranes as effectively as doubling the Phenoxyethanol concentration on its own.
Typical use concentrations range from 0.3-1% depending on the formula, and this ingredient is capped at 1% int the EU.
Safety-wise, the fear mongering does not hold up to the evidence. The EU's Scientific Committee on Consumer Safety and FDA consider it safe as a preservative at up to 1%, including for children of all ages.
Adverse systemic effects only showed up in animal studies at exposures roughly 200x higher than what people get from cosmetics. And despite its very widespread use, this ingredient is a rare sensitizer and allergic reactions are uncommon.
Potassium Sorbate is a preservative used to prevent yeast and mold in products. It is commonly found in both cosmetic and food products.
This ingredient comes from potassium salt derived from sorbic acid. Sorbic acid is a natural antibiotic and effective against fungus.
Both potassium sorbate and sorbic acid can be found in baked goods, cheeses, dried meats, dried fruit, ice cream, pickles, wine, yogurt, and more.
You'll often find this ingredient used with other preservatives.
Sodium Benzoate is a preservative. It's used in both cosmetic and food products to inhibit the growth of mold and bacteria. It is typically produced synthetically.
Both the US FDA and EU Health Committee have approved the use of sodium benzoate. In the US, levels of 0.1% (of the total product) are allowed.
Sodium benzoate works as a preservative by inhibiting the growth of bacteria inside of cells. It prevents the cell from fermenting a type of sugar using an enzyme called phosphofructokinase.
It is the salt of benzoic acid. Foods containing sodium benzoate include soda, salad dressings, condiments, fruit juices, wines, and snack foods.
Studies for using ascorbic acid and sodium benzoate in cosmetics are lacking, especially in skincare routines with multiple steps.
We always recommend speaking with a professional, such as a dermatologist, if you have any concerns.
Water. It's the most common cosmetic ingredient of all. You'll usually see it at the top of ingredient lists, meaning that it makes up the largest part of the product.
So why is it so popular? Water most often acts as a solvent - this means that it helps dissolve other ingredients into the formulation.
You'll also recognize water as that liquid we all need to stay alive. If you see this, drink a glass of water. Remember to stay hydrated!