Naturium Niacinamide Gel Cream 5% Versus The INKEY List Multi-Biotic Moisturizer

Naturium Niacinamide Gel Cream 5% Versus The INKEY List Multi-Biotic Moisturizer

This barrier-repair moisturizer is formulated around Niacinamide to strengthen the skin barrier and fade the look of dark spots.

This barrier-repair moisturizer is formulated around Inulin and Squalane to strengthen the skin barrier and hydrate skin.

What's inside

Key Ingredients

Benefits

Concerns

Ingredients Side-by-side

Water

Dimethicone

Niacinamide

Propanediol

Cocos Nucifera Fruit Juice

Acrylamide/Sodium Acryloyldimethyltaurate Copolymer

Ammonium Acryloyldimethyltaurate/Vp Copolymer

Dimethicone Crosspolymer

Kappaphycus Alvarezii Extract

Alteromonas Ferment Extract

Sodium Hyaluronate

Sea Water

Hydroxyacetophenone

Glycerin

Isohexadecane

Sorbitan Oleate

Butylene Glycol

Phenoxyethanol

Cetyl Diglyceryl Tris(Trimethylsiloxy)Silylethyl Dimethicone

1,2-Hexanediol

Caprylyl Glycol

Polysorbate 80

Hexadecene

Sodium Hydroxide

Sodium Benzoate

Potassium Sorbate

Tocopherol

Water, Dimethicone, Niacinamide, Propanediol, Cocos Nucifera Fruit Juice, Acrylamide/Sodium Acryloyldimethyltaurate Copolymer, Ammonium Acryloyldimethyltaurate/Vp Copolymer, Dimethicone Crosspolymer, Kappaphycus Alvarezii Extract, Alteromonas Ferment Extract, Sodium Hyaluronate, Sea Water, Hydroxyacetophenone, Glycerin, Isohexadecane, Sorbitan Oleate, Butylene Glycol, Phenoxyethanol, Cetyl Diglyceryl Tris(Trimethylsiloxy)Silylethyl Dimethicone, 1,2-Hexanediol, Caprylyl Glycol, Polysorbate 80, Hexadecene, Sodium Hydroxide, Sodium Benzoate, Potassium Sorbate, Tocopherol

Inulin

Isoamyl Laurate

Squalane

Cetearyl Olivate

Sorbitan Olivate

Avena Sativa Kernel Oil

Yogurt Powder

Sodium Caproyl Prolinate

Carbomer

Isoamyl Cocoate

Benzyl Alcohol

Sodium Stearoyl Glutamate

Ethylhexylglycerin

Diglucosyl Gallic Acid

Trisodium Ethylenediamine Disuccinate

Dehydroacetic Acid

Polysorbate 60

Citric Acid

Heptapeptide-7

Lecithin

Xanthan Gum

Sorbitan Isostearate

Water, Inulin, Glycerin, Isoamyl Laurate, Propanediol, Squalane, Cetearyl Olivate, Sorbitan Olivate, Avena Sativa Kernel Oil, Phenoxyethanol, Yogurt Powder, Sodium Caproyl Prolinate, Carbomer, Isoamyl Cocoate, Benzyl Alcohol, Sodium Hyaluronate, Sodium Stearoyl Glutamate, Ethylhexylglycerin, Diglucosyl Gallic Acid, Trisodium Ethylenediamine Disuccinate, Dehydroacetic Acid, Polysorbate 60, Citric Acid, Heptapeptide-7, Lecithin, Potassium Sorbate, Sodium Benzoate, Xanthan Gum, Sorbitan Isostearate

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Alternatives

Ingredients Explained

These ingredients are found in both products.

Ingredients higher up in an ingredient list are typically present in a larger amount.

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.

Propanediol is an all-star ingredient. It softens, hydrates, and smooths the skin.

It’s often used to:

Propanediol is not likely to cause sensitivity and considered safe to use. It is derived from corn or petroleum with a clear color and no scent.

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.

Sodium Hyaluronate is the salt form of hyaluronic acid. It is a long sugar chain that is naturally found in your skin, joints, and connective tissue that maintains hydration and elasticity.

In skincare, it works as a humectant. It pulls water from the environment and deeper layers of skin and binds it to the surface.

Interestingly, the size of the molecule affects its behavior:

Some clinical evidence links low molecular weight versions to improved wrinkle depth, elasticity, anti-inflammatory effects, and barrier repair.

Many serums use a blend of both weights so you can get surface hydration plus longer-lasting and deeper effects.

You'll typically see concentrations between 0.1-2% for this ingredient.

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!

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