Skin science article
Naturium Intense Overnight Sleeping Cream Versus First Aid Beauty Ultra Repair Hydra-Firm Night Cream
Naturium Intense Overnight Sleeping Cream Versus First Aid Beauty Ultra Repair Hydra-Firm Night Cream This hydrating overnight mask is formulated around Squalane and Phospholipids to hydrate skin and strengthen the skin barrier. This anti-aging night moisturiz
Naturium Intense Overnight Sleeping Cream Versus First Aid Beauty Ultra Repair Hydra-Firm Night Cream
This hydrating overnight mask is formulated around Squalane and Phospholipids to hydrate skin and strengthen the skin barrier.
This anti-aging night moisturizer is formulated around Butyrospermum Parkii Butter and Niacinamide to soften the look of wrinkles and hydrate skin.
What's inside
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Water
Caprylic/Capric Triglyceride
Glycerin
Caprylic/Capric/Myristic/Stearic Triglyceride
Cetearyl Alcohol
Squalane
Propanediol
Glyceryl Stearate
Polymethyl Methacrylate
Terminalia Ferdinandiana Fruit Extract
Ammonium Acryloyldimethyltaurate/Vp Copolymer
Caprylyl Glycol
Acrylates/C10-30 Alkyl Acrylate Crosspolymer
Phospholipids
Sodium Hydroxide
Tremella Fuciformis Sporocarp Extract
Hyaluronic Acid
Sphingolipids
Sodium Dehydroacetate
Phenoxyethanol
Betaine
Honey
Potassium Sorbate
Polysorbate 20
Hexylene Glycol
Water, Caprylic/Capric Triglyceride, Glycerin, Caprylic/Capric/Myristic/Stearic Triglyceride, Cetearyl Alcohol, Squalane, Propanediol, Glyceryl Stearate, Polymethyl Methacrylate, Terminalia Ferdinandiana Fruit Extract, Ammonium Acryloyldimethyltaurate/Vp Copolymer, Caprylyl Glycol, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Phospholipids, Sodium Hydroxide, Tremella Fuciformis Sporocarp Extract, Hyaluronic Acid, Sphingolipids, Sodium Dehydroacetate, Phenoxyethanol, Betaine, Honey, Potassium Sorbate, Polysorbate 20, Hexylene Glycol
Butyrospermum Parkii Butter
Dimethicone
C10-18 Triglycerides
Ethylhexyl Palmitate
Lactobacillus Ferment
Jojoba Esters
Cetyl Alcohol
Niacinamide
Spilanthes Acmella Flower Extract
Helianthus Annuus Seed Cera
Acacia Decurrens Flower Cera
Algae Extract
Palmitoyl Tripeptide-38
Sodium Hyaluronate
Avena Sativa Kernel Flour
Palmitoyl Hexapeptide-12
Palmitoyl Tetrapeptide-7
Camellia Sinensis Leaf Extract
Chrysanthemum Parthenium Extract
Glycyrrhiza Glabra Root Extract
Hydroxypropyl Cyclodextrin
Sodium Lactate
Butylene Glycol
PEG-75 Stearate
Ceteth-20
Steareth-20
Polyglycerin-3
Carbomer
Xanthan Gum
Tetrasodium EDTA
Water, Glycerin, Caprylic/Capric Triglyceride, Butyrospermum Parkii Butter, Dimethicone, Glyceryl Stearate, C10-18 Triglycerides, Ethylhexyl Palmitate, Lactobacillus Ferment, Jojoba Esters, Cetyl Alcohol, Niacinamide, Spilanthes Acmella Flower Extract, Helianthus Annuus Seed Cera, Acacia Decurrens Flower Cera, Algae Extract, Palmitoyl Tripeptide-38, Sodium Hyaluronate, Avena Sativa Kernel Flour, Palmitoyl Hexapeptide-12, Palmitoyl Tetrapeptide-7, Camellia Sinensis Leaf Extract, Chrysanthemum Parthenium Extract, Glycyrrhiza Glabra Root Extract, Hydroxypropyl Cyclodextrin, Sodium Lactate, Butylene Glycol, PEG-75 Stearate, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Ceteth-20, Steareth-20, Polyglycerin-3, Carbomer, Polysorbate 20, Phenoxyethanol, Xanthan Gum, Tetrasodium EDTA, Sodium Hydroxide
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.
Acrylates/C10-30 Alkyl Acrylate Crosspolymer is a synthetic polymer. It is used to thicken, emulsify, and improve the texture of products.
As an emulsifier, it helps stabilize oil-in-water emulsions to give products an elegant feel when applied.
It can also form a thin protective film on skin. One study found that a formula using this polymer helped slow down how quickly other ingredients (like DEET) were absorbed through skin.
A 2024 study of over 1,300 patients confirmed that sensitization to this ingredient is rare. It is also non-mutagenic and has a clean track record.
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%.
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.
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.
Polysorbate 20 is a gentle, water-soluble emulsifier and mild surfactant. It stops oil and water from separating to keep your formulas blended and stable.
It also acts as a mild penetration enhancer by helping active ingredients absorb slightly better.
The common safety discussion around this ingredient involves a manufacturing byproduct called 1,4-dioxane.
Trace amounts can form during production but the EU's Scientific Committee on Consumer Safety has concluded that levels at/below 10 ppm in finished products are safe (commercial products consistently fall within acceptable margins).
True allergic reactions are uncommon and the CIR Expert Panel has confirmed this ingredient to be safe as used in cosmetics.
Because it is derived from lauric acid, it may not be fungal acne safe.
Sodium Hydroxide is also known as lye or caustic soda. It is used to adjust the pH of products; many ingredients require a specific pH to be effective.
In small amounts, sodium hydroxide is considered safe to use. However, large amounts may cause chemical burns due to its high alkaline.
Your skin has a natural pH and acid mantle. This acid mantle helps prevent harmful bacteria from breaking through. The acid mantle also helps keep your skin hydrated.
"Alkaline" refers to a high pH level. A low pH level would be considered acidic.
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!