Skin science article
Paula's Choice Resist Ultra-Light Super Antioxidant Concentrate Serum Versus Oz naturals Hyaluronic Acid Serum
Paula's Choice Resist Ultra-Light Super Antioxidant Concentrate Serum Versus Oz naturals Hyaluronic Acid Serum This anti-aging serum is formulated around Resveratrol and Niacinamide to soften the look of wrinkles and calm redness. This hydrating serum is formu
Paula's Choice Resist Ultra-Light Super Antioxidant Concentrate Serum Versus Oz naturals Hyaluronic Acid Serum
This anti-aging serum is formulated around Resveratrol and Niacinamide to soften the look of wrinkles and calm redness.
This hydrating serum is formulated around Sodium Hyaluronate and Sodium Ascorbyl Phosphate to hydrate skin and calm redness.
What's inside
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Water
Cyclopentasiloxane
Butylene Glycol
Dimethicone
Glycerin
Polysorbate 20
Polysilicone-11
Lauryl PEG-9 Polydimethylsiloxyethyl Dimethicone
Hyaluronic Acid
Resveratrol
Niacinamide
Quercetin
Adenosine
Tetrahexyldecyl Ascorbate
Tocopherol
Phospholipids
Ubiquinone
Epigallocatechin Gallate
Sea Whip Extract
Bisabolol
Beta-Glucan
Phytic Acid
Xanthan Gum
Acrylates/C10-30 Alkyl Acrylate Crosspolymer
Sodium Hydroxide
Disodium EDTA
Ethylhexylglycerin
Phenoxyethanol
Water, Cyclopentasiloxane, Butylene Glycol, Dimethicone, Glycerin, Polysorbate 20, Polysilicone-11, Lauryl PEG-9 Polydimethylsiloxyethyl Dimethicone, Hyaluronic Acid, Resveratrol, Niacinamide, Quercetin, Adenosine, Tetrahexyldecyl Ascorbate, Tocopherol, Phospholipids, Ubiquinone, Epigallocatechin Gallate, Sea Whip Extract, Bisabolol, Beta-Glucan, Phytic Acid, Xanthan Gum, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Sodium Hydroxide, Disodium EDTA, Ethylhexylglycerin, Phenoxyethanol
Propanediol
Hamamelis Virginiana Water
Sodium Hyaluronate
Sodium Ascorbyl Phosphate
Tocopheryl Acetate
Pelargonium Graveolens Oil
Panthenol
Allantoin
Rosa Canina Fruit Extract
Camellia Sinensis Leaf Extract
Chamomilla Recutita Flower Extract
Aloe Barbadensis Leaf Juice
Yeast Extract
Hydroxyethylcellulose
Citric Acid
Caprylyl Glycol
Phenylpropanol
P-Anisic Acid
Water, Propanediol, Hamamelis Virginiana Water, Glycerin, Sodium Hyaluronate, Sodium Ascorbyl Phosphate, Tocopherol, Tocopheryl Acetate, Pelargonium Graveolens Oil, Panthenol, Allantoin, Rosa Canina Fruit Extract, Camellia Sinensis Leaf Extract, Chamomilla Recutita Flower Extract, Aloe Barbadensis Leaf Juice, Yeast Extract, Hydroxyethylcellulose, Polysorbate 20, Citric Acid, Sodium Hydroxide, Caprylyl Glycol, Phenylpropanol, P-Anisic Acid
Alternatives
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
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.
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.
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!