Skin science article
The Ordinary Soothing & Barrier Support Serum Versus The INKEY List Exosome Hydro-Glow Complex Serum
The Ordinary Soothing & Barrier Support Serum Versus The INKEY List Exosome Hydro-Glow Complex Serum This barrier-repair serum is formulated around Niacinamide and Asiaticoside to strengthen the skin barrier and calm redness. This hydrating serum is formulated
The Ordinary Soothing & Barrier Support Serum Versus The INKEY List Exosome Hydro-Glow Complex Serum
This barrier-repair serum is formulated around Niacinamide and Asiaticoside to strengthen the skin barrier and calm redness.
This hydrating serum is formulated around Ectoin and Ubiquinone to hydrate skin and strengthen the skin barrier.
What's inside
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Water
Propanediol
Isodecyl Neopentanoate
Pentylene Glycol
Niacinamide
Hexyldecanol
Cetearyl Alcohol
Xylitylglucoside
Ceteth-20 Phosphate
Anhydroxylitol
Ethyl Linoleate
Asiaticoside
Asiatic Acid
Madecassic Acid
Naringenin
Cyanocobalamin
Panthenyl Triacetate
4-T-Butylcyclohexanol
Hydroxyphenyl Propamidobenzoic Acid
Cetylhydroxyproline Palmitamide
Bisabolol
Brassica Campestris Sterols
Sphingolipids
Phospholipids
Epigallocatechin Gallatyl Glucoside
Gallyl Glucoside
Propyl Gallate
Xylitol
Zingiber Officinale Root Extract
Stearic Acid
Dicetyl Phosphate
Isoceteth-20
Xanthan Gum
Trisodium Ethylenediamine Disuccinate
Tocopherol
Dehydroacetic Acid
P-Anisic Acid
Phytic Acid
Sodium Phytate
Sodium Citrate
Sodium Hydroxide
Benzyl Alcohol
Ethylhexylglycerin
Phenoxyethanol
Chlorphenesin
Water, Propanediol, Isodecyl Neopentanoate, Pentylene Glycol, Niacinamide, Hexyldecanol, Cetearyl Alcohol, Xylitylglucoside, Ceteth-20 Phosphate, Anhydroxylitol, Ethyl Linoleate, Asiaticoside, Asiatic Acid, Madecassic Acid, Naringenin, Cyanocobalamin, Panthenyl Triacetate, 4-T-Butylcyclohexanol, Hydroxyphenyl Propamidobenzoic Acid, Cetylhydroxyproline Palmitamide, Bisabolol, Brassica Campestris Sterols, Sphingolipids, Phospholipids, Epigallocatechin Gallatyl Glucoside, Gallyl Glucoside, Propyl Gallate, Xylitol, Zingiber Officinale Root Extract, Stearic Acid, Dicetyl Phosphate, Isoceteth-20, Xanthan Gum, Trisodium Ethylenediamine Disuccinate, Tocopherol, Dehydroacetic Acid, P-Anisic Acid, Phytic Acid, Sodium Phytate, Sodium Citrate, Sodium Hydroxide, Benzyl Alcohol, Ethylhexylglycerin, Phenoxyethanol, Chlorphenesin
Caprylic/Capric Triglyceride
Dipropylene Glycol
Glycerin
Coconut Alkanes
Sodium Acrylates Copolymer
Dimethicone
Ectoin
Cetearyl Olivate
Sorbitan Olivate
Allantoin
Hydrolyzed Sodium Hyaluronate
Sodium Hyaluronate
Butylene Glycol
Lecithin
Ubiquinone
Coco-Caprylate/Caprate
Hydrolyzed Opuntia Ficus-Indica Flower Extract
Centella Asiatica Leaf Extract
Dextran
Tripeptide-1
Water, Caprylic/Capric Triglyceride, Dipropylene Glycol, Glycerin, Propanediol, Coconut Alkanes, Sodium Acrylates Copolymer, Dimethicone, Ectoin, Phenoxyethanol, Cetearyl Olivate, Sorbitan Olivate, Allantoin, Hydrolyzed Sodium Hyaluronate, Sodium Hyaluronate, Butylene Glycol, Lecithin, Ubiquinone, Coco-Caprylate/Caprate, Ethylhexylglycerin, Sodium Phytate, Pentylene Glycol, Hydrolyzed Opuntia Ficus-Indica Flower Extract, Centella Asiatica Leaf Extract, Dextran, Tripeptide-1
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.
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.
Pentylene Glycol (1,2-pentanediol) is a multitasking little diol with three main roles in a formula:
Research on alkanediols (the family pentylene glycol belongs to) show they work by disrupting microbial cell membranes. This disruption helps the primary preservative system in a product work more effectively at lower doses.
On the safety side, the Cosmetic Ingredient Review Expert Panel has concluded this ingredient to be safe as used in current cosmetic practices + concentrations.
Typical use levels in a formula run about 1-5%.
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.
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 Phytate is the synthetic salt form of phytic acid. Phytic acid is an antioxidant and can be found in plant seeds.
Sodium Phytate is a chelating agent. Chelating agents help prevent metals from binding to water. This helps stabilize the ingredients and the product.
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!