The INKEY List Blemish Clearing Moisturizer Versus Dr. Althea 345 Relief Cream

The INKEY List Blemish Clearing Moisturizer Versus Dr. Althea 345 Relief Cream

This acne moisturizer is formulated around Sodium Ascorbyl Phosphate and Sulfur to clear breakouts and refine skin texture.

This calming moisturizer is formulated around Niacinamide and Panthenol to calm redness and strengthen the skin barrier.

What's inside

Key Ingredients

Benefits

Concerns

Ingredients Side-by-side

Water

Glycerin

Octyldodecanol

Caprylic/Capric Triglyceride

Sodium Ascorbyl Phosphate

Sulfur

Arachidyl Alcohol

Pentaerythrityl Distearate

Squalane

Glyceryl Stearate Se

Citronellyl Methylcrotonate

Behenyl Alcohol

Acacia Senegal Gum

Arachidyl Glucoside

Phenoxyethanol

Ammonium Acryloyldimethyltaurate/Vp Copolymer

Panthenol

Xanthan Gum

Benzyl Alcohol

Citric Acid

Retinol

Sodium Hyaluronate

Ethylhexylglycerin

Pentylene Glycol

Sodium Metabisulfite

Pistacia Lentiscus Gum

Dehydroacetic Acid

Lecithin

Glucose

Tocopherol

Glyceryl Caprylate

Water, Glycerin, Octyldodecanol, Caprylic/Capric Triglyceride, Sodium Ascorbyl Phosphate, Sulfur, Arachidyl Alcohol, Pentaerythrityl Distearate, Squalane, Glyceryl Stearate Se, Citronellyl Methylcrotonate, Behenyl Alcohol, Acacia Senegal Gum, Arachidyl Glucoside, Phenoxyethanol, Ammonium Acryloyldimethyltaurate/Vp Copolymer, Panthenol, Xanthan Gum, Benzyl Alcohol, Citric Acid, Retinol, Sodium Hyaluronate, Ethylhexylglycerin, Pentylene Glycol, Sodium Metabisulfite, Pistacia Lentiscus Gum, Dehydroacetic Acid, Lecithin, Glucose, Tocopherol, Glyceryl Caprylate

Propanediol

Cyclohexasiloxane

1,2-Hexanediol

Niacinamide

Polyglycerin-3

Polyglyceryl-10 Stearate

Hydrogenated Polydecene

Hydrogenated Poly(C6-14 Olefin)

Dicaprylyl Carbonate

C14-22 Alcohols

Polymethylsilsesquioxane

C12-20 Alkyl Glucoside

Butylene Glycol

Acrylates/C10-30 Alkyl Acrylate Crosspolymer

Polyquaternium-51

Tromethamine

Coptis Japonica Root Extract

Houttuynia Cordata Extract

Oenothera Biennis Flower Extract

Beta-Glucan

Resveratrol

Gardenia Florida Fruit Extract

Lavandula Angustifolia Flower Extract

Opuntia Ficus-Indica Stem Extract

Hydrolyzed Hyaluronic Acid

Centella Asiatica Leaf Extract

Hibiscus Sabdariffa Flower Extract

Corallina Officinalis Extract

Ceramide NP

Water, Propanediol, Glycerin, Cyclohexasiloxane, 1,2-Hexanediol, Niacinamide, Caprylic/Capric Triglyceride, Polyglycerin-3, Panthenol, Polyglyceryl-10 Stearate, Hydrogenated Polydecene, Hydrogenated Poly(C6-14 Olefin), Dicaprylyl Carbonate, Ammonium Acryloyldimethyltaurate/Vp Copolymer, C14-22 Alcohols, Polymethylsilsesquioxane, C12-20 Alkyl Glucoside, Butylene Glycol, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Ethylhexylglycerin, Polyquaternium-51, Tromethamine, Sodium Hyaluronate, Coptis Japonica Root Extract, Houttuynia Cordata Extract, Oenothera Biennis Flower Extract, Beta-Glucan, Resveratrol, Gardenia Florida Fruit Extract, Lavandula Angustifolia Flower Extract, Opuntia Ficus-Indica Stem Extract, Hydrolyzed Hyaluronic Acid, Centella Asiatica Leaf Extract, Phenoxyethanol, Hibiscus Sabdariffa Flower Extract, Tocopherol, Corallina Officinalis Extract, Ceramide NP

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.

Ammonium Acryloyldimethyltaurate/Vp Copolymer is a synthetically created polymer. It's used as a film-forming agent and used to thicken the consistency of products.

Think of it as a supportive ingredient that helps your gel-creams feel silky, "cloud cream-like", and spread evenly without being greasy.

The Cosmetic Ingredient Review (CIR) Expert Panel evaluated it (along with 22 other acryloyldimethyltaurate polymers) and concluded it's:

Due to its large molecular size, it sits on the surface of skin rather than penetrating it.

Caprylic/Capric Triglyceride (aka MCT Oil) is a lightweight emollient, solvent, and texture enhancer. It is considered a skin-softener by helping to prevent moisture loss.

Though it behaves like an oil, it is not technically one due to its chemical composition. One perk of this ingredient is that it is very stable, resistant to oxidation, and unlikely to go rancid.

In practice, that translates to a long shelf life and a consistently elegant skin feel.

While there is an assumption Caprylic Triglyceride can clog pores due to it being derived from coconut oil, there is no research supporting this. Just patch test if you have concerns.

Fractionated coconut oil and MCT Oil are both listed as Caprylic/Capric Triglyceride according to INCI. This is because INCI names are based on the ingredient’s final chemical composition and not its marketing name or source.

This ingredient is treated as the gold standard fungal acne safe oil. Even though it is coconut derived, the problematic lauric acid is stripped out.

This leaves just caprylic (C8) and capric (C10) acid. These chain lengths actually trend antifungal; a 2020 study found caprylic acid was enough to disrupt Malassezia furfur cell membrane, with a caprylic acid derivative damaging membrane structures at concentrations as low as 0.2%.

Ethylhexylglycerin is created from glycerin. It is a multitasker ingredient that:

The CIR Expert Panel found minimal skin absorption or sensitization of any kind in a safety assessment. Though this ingredient is considered well-tolerated, a small number of cases of allergic dermatitis have been published since 2002. Just be sure to patch test if you are unsure.

Industry-reported use ranges from 8% in rinse-off products and 2% in leave-on formulations.

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.

Panthenol is a common ingredient that helps hydrate and soothe the skin. It is found naturally in our skin and hair.

There are two forms of panthenol: D and L.

D-panthenol is also known as dexpanthenol. Most cosmetics use dexpanthenol or a mixture of D and L-panthenol.

Panthenol is famous due to its ability to go deeper into the skin's layers. Using this ingredient has numerous pros (and no cons):

Like hyaluronic acid, panthenol is a humectant. Humectants are able to bind and hold large amounts of water to keep skin hydrated.

This ingredient works well for wound healing. It works by increasing tissue in the wound and helps close open wounds.

Once oxidized, panthenol converts to pantothenic acid. Panthothenic acid is found in all living cells.

This ingredient is also referred to as pro-vitamin B5.

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.

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.

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.

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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