Skin science article
First Aid Beauty Ultra Repair Cream Intense Hydration Versus Sephora Collection All Day Hyaluronic Acid Hydrator Moisturizer
First Aid Beauty Ultra Repair Cream Intense Hydration Versus Sephora Collection All Day Hyaluronic Acid Hydrator Moisturizer This calming moisturizer is formulated around Colloidal Oatmeal and Squalane to calm redness and hydrate skin. This barrier-repair day
First Aid Beauty Ultra Repair Cream Intense Hydration Versus Sephora Collection All Day Hyaluronic Acid Hydrator Moisturizer
This calming moisturizer is formulated around Colloidal Oatmeal and Squalane to calm redness and hydrate skin.
This barrier-repair day moisturizer is formulated around Sodium Hyaluronate and Caprylic/Capric Triglyceride to strengthen the skin barrier and hydrate skin.
What's inside
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Colloidal Oatmeal 0.5%
Water
Stearic Acid
Glycerin
C12-15 Alkyl Benzoate
Caprylic/Capric Triglyceride
Glyceryl Stearate Se
Glyceryl Stearate
Cetearyl Alcohol
Dimethicone
Squalane
Butyrospermum Parkii Butter
Phenoxyethanol
Caprylyl Glycol
Xanthan Gum
Allantoin
Sodium Hydroxide
Tetrasodium EDTA
Chrysanthemum Parthenium Extract
Camellia Sinensis Leaf Extract
Glycyrrhiza Glabra Root Extract
Ceramide NP
Eucalyptus Globulus Leaf Oil
Colloidal Oatmeal 0.5%, Water, Stearic Acid, Glycerin, C12-15 Alkyl Benzoate, Caprylic/Capric Triglyceride, Glyceryl Stearate Se, Glyceryl Stearate, Cetearyl Alcohol, Dimethicone, Squalane, Butyrospermum Parkii Butter, Phenoxyethanol, Caprylyl Glycol, Xanthan Gum, Allantoin, Sodium Hydroxide, Tetrasodium EDTA, Chrysanthemum Parthenium Extract, Camellia Sinensis Leaf Extract, Glycyrrhiza Glabra Root Extract, Ceramide NP, Eucalyptus Globulus Leaf Oil
Butylene Glycol
Heptyl Undecylenate
PEG-100 Stearate
Glyceryl Stearate Citrate
Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer
Palmitic Acid
Hydroxyacetophenone
Microcrystalline Cellulose
Ethylhexylglycerin
Tocopherol
Helianthus Annuus Seed Oil
Caesalpinia Spinosa Gum
Sodium Hyaluronate
Tocopheryl Acetate
Bisabolol
Cellulose Gum
Polysorbate 60
Sorbitan Isostearate
Sodium Phytate
Arginine
Ascorbyl Glucoside
Water, Caprylic/Capric Triglyceride, Glycerin, Butylene Glycol, Heptyl Undecylenate, Glyceryl Stearate, PEG-100 Stearate, Glyceryl Stearate Citrate, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Palmitic Acid, Stearic Acid, Hydroxyacetophenone, Microcrystalline Cellulose, Caprylyl Glycol, Ethylhexylglycerin, Tocopherol, Helianthus Annuus Seed Oil, Caesalpinia Spinosa Gum, Sodium Hyaluronate, Tocopheryl Acetate, Bisabolol, Cellulose Gum, Polysorbate 60, Sorbitan Isostearate, Sodium Phytate, Arginine, Ascorbyl Glucoside
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.
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%.
Caprylyl Glycol is a humectant, skin conditioner, emollient, and preservative booster derived from either caprylic acid or synthetically created.
Typical use levels vary from 0.3-1% as a preservative booster and go up to 2% to condition skin.
Because it is not a free-fatty acid, this ingredient is fungal acne safe (there's nothing for Malassezia to feed on).
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.
Glyceryl Stearate is made by reacting glycerin with stearic acid (typically sourced from plant oils like palm or coconut). It's an emulsifier, emollient, and mild occlusive.
Emulsifiers help ingredients like oil and water stay mixed so your formula stays nicely blended and uniform in texture.
This ingredient is typically used in concentrations between 1-10%. Studies have found it to be non-sensitizing, non-phototoxic, and non-photoallergenic.
A close cousin of this ingredient is Glyceryl Stearate SE ("self-emulsifying"). This just has a small amount of sodium or potassium stearate added so it can emulsify without a co-emulsifier.
Since this ingredient is an ester of a C18 fatty acid, it may not be fungal acne safe. The Malassezia yeast can potentially metabolize within the C11-C24 range.
Fun fact: The human body also creates Glyceryl Stearate naturally.
Stearic Acid is a fatty acid that is already found in your skin. It's one of the free fatty acids that works alongside ceramides and cholesterols to maintain your barrier.
In cosmetics, it is a multitasker:
Safety-wise, the CIR Expert Panel has concluded it to be safe in cosmetics when formulated to be non-irritating and non-sensitizing.
Free stearic acid is a C18 fatty acid that the Malassezia yeast can substrate, so this ingredient may not be fungal acne safe.
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!