The Ordinary Azelaic Acid Suspension 10% Versus The INKEY List Turmeric Moisturizer

The Ordinary Azelaic Acid Suspension 10% Versus The INKEY List Turmeric Moisturizer

This calming serum is formulated around Azelaic Acid to calm redness and refine skin texture.

This calming moisturizer is formulated around Squalane and Avena Sativa Kernel Oil to calm redness and hydrate skin.

What's inside

Key Ingredients

Benefits

Concerns

Ingredients Side-by-side

Water

Isodecyl Neopentanoate

Dimethicone

Azelaic Acid

Dimethicone/Bis-Isobutyl PPG-20 Crosspolymer

Dimethyl Isosorbide

Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer

Polysilicone-11

Isohexadecane

Tocopherol

Trisodium Ethylenediamine Disuccinate

Isoceteth-20

Polysorbate 60

Triethanolamine

Ethoxydiglycol

Phenoxyethanol

Chlorphenesin

Water, Isodecyl Neopentanoate, Dimethicone, Azelaic Acid, Dimethicone/Bis-Isobutyl PPG-20 Crosspolymer, Dimethyl Isosorbide, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Polysilicone-11, Isohexadecane, Tocopherol, Trisodium Ethylenediamine Disuccinate, Isoceteth-20, Polysorbate 60, Triethanolamine, Ethoxydiglycol, Phenoxyethanol, Chlorphenesin

Squalane

Cocos Nucifera Oil

C12-16 Alcohols

Avena Sativa Kernel Flour

Curcuma Longa Root Extract

Avena Sativa Kernel Oil

Palmitic Acid

Tocopheryl Acetate

Lecithin

Glycerin

Xanthan Gum

Sodium Levulinate

Sodium Anisate

Ethylhexylglycerin

Sodium Stearoyl Glutamate

Water, Squalane, Cocos Nucifera Oil, C12-16 Alcohols, Avena Sativa Kernel Flour, Curcuma Longa Root Extract, Avena Sativa Kernel Oil, Palmitic Acid, Tocopheryl Acetate, Phenoxyethanol, Lecithin, Glycerin, Xanthan Gum, Sodium Levulinate, Sodium Anisate, Ethylhexylglycerin, Sodium Stearoyl Glutamate, Trisodium Ethylenediamine Disuccinate, Tocopherol

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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.

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.

Tocopherol is a fat-soluble antioxidant known as Vitamin E.

You'll find this ingredient in the vast majority of skincare (for good reason). It works to neutralize free radicals, or unstable molecules generated by UV exposure, pollution, and other environmental stressors, before they can cause oxidative damage to your skin cells.

Topically applied tocopherol has been shown to protect against UV damage by ramping up the skin's own natural defense enzymes.

It also acts as a skin conditioning agent; some studies show that regular topical use can improve the skin's water-binding capacity over 2-4 weeks.

This ingredient is especially loved for being a team player. When combined with Vitamin C, the photoprotective effect of both ingredients roughly doubles and the combo also helps reduce UV-induced DNA damage.

This ingredient has some brightening potential but it's more of a prevention ingredient than spot-fader. Cell studies show it can slow down melanin production but it's worth noting that it's not the most powerful brightener out there.

In formulations, it also serves as a stabilizer that helps protect other oxidation-prone ingredients from degrading.

Concentrations usually range from 0.1-1% in most leave-on products.

Trisodium Ethylenediamine Disuccinate is used to help stabilize a product.

It is a chelating agent, meaning it helps prevent metal ions from binding to other ingredients. This prevents unwanted reactions in products. Metal ions can come into a product via the water ingredient. They are found in trace amounts and are not known to be harmful.

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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