Skin science article
Paula's Choice Omega+ Complex Serum Versus Paula's Choice Earth Sourced Power Berry Serum
Paula's Choice Omega+ Complex Serum Versus Paula's Choice Earth Sourced Power Berry Serum This barrier-repair serum is formulated around Linoleic Acid and Linolenic Acid to strengthen the skin barrier and hydrate skin. This calming serum is formulated around G
Paula's Choice Omega+ Complex Serum Versus Paula's Choice Earth Sourced Power Berry Serum
This barrier-repair serum is formulated around Linoleic Acid and Linolenic Acid to strengthen the skin barrier and hydrate skin.
This calming serum is formulated around Glycyrrhiza Glabra Root Extract and Tetrahexyldecyl Ascorbate to calm redness and brighten dull-looking skin.
What's inside
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Water
Glycerin
Diheptyl Succinate
Candelilla/Jojoba/Rice Bran Polyglyceryl-3 Esters
Linum Usitatissimum Seed Oil
Linoleic Acid
Linolenic Acid
Passiflora Edulis Seed Oil
Ceramide EOP
Ceramide Eos
Ceramide NP
Ceramide Ns
Caprooyl Sphingosine
Olea Europaea Oil Unsaponifiables
Caprooyl Phytosphingosine
Sodium Hyaluronate
Cholesterol
Ceramide AP
Butyrospermum Parkii Butter Unsaponifiables
Tocopherol
Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer
Prunus Domestica Seed Oil
Lauryl Laurate
Glyceryl Behenate
Hydrogenated Lecithin
Sodium Phytate
Trehalose
Isohexadecane
Sodium Stearoyl Lactylate
Capryloyl Glycerin/Sebacic Acid Copolymer
Xanthan Gum
Cetyl Alcohol
Tetrahexyldecyl Ascorbate
Agar
Glyceryl Stearate
Ceteareth-25
Cetearyl Alcohol
Behenic Acid
Glyceryl Rosinate
Citric Acid
Benzyl Alcohol
Ethylhexylglycerin
Water, Glycerin, Diheptyl Succinate, Candelilla/Jojoba/Rice Bran Polyglyceryl-3 Esters, Linum Usitatissimum Seed Oil, Linoleic Acid, Linolenic Acid, Passiflora Edulis Seed Oil, Ceramide EOP, Ceramide Eos, Ceramide NP, Ceramide Ns, Caprooyl Sphingosine, Olea Europaea Oil Unsaponifiables, Caprooyl Phytosphingosine, Sodium Hyaluronate, Cholesterol, Ceramide AP, Butyrospermum Parkii Butter Unsaponifiables, Tocopherol, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Prunus Domestica Seed Oil, Lauryl Laurate, Glyceryl Behenate, Hydrogenated Lecithin, Sodium Phytate, Trehalose, Isohexadecane, Sodium Stearoyl Lactylate, Capryloyl Glycerin/Sebacic Acid Copolymer, Xanthan Gum, Cetyl Alcohol, Tetrahexyldecyl Ascorbate, Agar, Glyceryl Stearate, Ceteareth-25, Cetearyl Alcohol, Behenic Acid, Glyceryl Rosinate, Citric Acid, Benzyl Alcohol, Ethylhexylglycerin
Coco-Caprylate
Butylene Glycol
Propanediol
Emblica Officinalis Fruit Extract
Euterpe Oleracea Fruit Extract
Vaccinium Macrocarpon Fruit Extract
Vaccinium Myrtillus Fruit Extract
Rubus Idaeus Fruit Extract
Sambucus Nigra Fruit Extract
Malpighia Emarginata Fruit Extract
Hippophae Rhamnoides Fruit Extract
Schisandra Chinensis Fruit Extract
Rubus Chamaemorus Fruit Extract
Lycium Barbarum Fruit Extract
Plinia Cauliflora Fruit Extract
Fragaria Vesca Fruit Extract
Melia Azadirachta Flower Extract
Melia Azadirachta Leaf Extract
Myrciaria Dubia Fruit Extract
Vitis Vinifera Seed Extract
Glycyrrhiza Glabra Root Extract
Squalane
Acetyl Tetrapeptide-9
Acetyl Tetrapeptide-11
Sesamum Indicum Seed Oil
Leuconostoc/Radish Root Ferment Filtrate
Corallina Officinalis Extract
Coccinia Indica Fruit Extract
Brassica Campestris Seed Oil
Mannitol
Potassium Sorbate
Sodium Benzoate
Phenoxyethanol
Water, Glycerin, Coco-Caprylate, Butylene Glycol, Propanediol, Glyceryl Stearate, Emblica Officinalis Fruit Extract, Euterpe Oleracea Fruit Extract, Vaccinium Macrocarpon Fruit Extract, Vaccinium Myrtillus Fruit Extract, Rubus Idaeus Fruit Extract, Sambucus Nigra Fruit Extract, Malpighia Emarginata Fruit Extract, Hippophae Rhamnoides Fruit Extract, Schisandra Chinensis Fruit Extract, Rubus Chamaemorus Fruit Extract, Lycium Barbarum Fruit Extract, Plinia Cauliflora Fruit Extract, Fragaria Vesca Fruit Extract, Melia Azadirachta Flower Extract, Melia Azadirachta Leaf Extract, Myrciaria Dubia Fruit Extract, Vitis Vinifera Seed Extract, Glycyrrhiza Glabra Root Extract, Squalane, Tetrahexyldecyl Ascorbate, Tocopherol, Acetyl Tetrapeptide-9, Acetyl Tetrapeptide-11, Prunus Domestica Seed Oil, Sesamum Indicum Seed Oil, Leuconostoc/Radish Root Ferment Filtrate, Corallina Officinalis Extract, Coccinia Indica Fruit Extract, Brassica Campestris Seed Oil, Xanthan Gum, Mannitol, Potassium Sorbate, Sodium Benzoate, Phenoxyethanol, Ethylhexylglycerin
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.
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.
Prunus Domestica Seed Oil is an oil and isn't fungal acne safe.
Tetrahexyldecyl Ascorbate (THD) is a stable and oil-soluble form of Vitamin C.
THD is special in that it has the ability to travel deeper into skin than traditional ascorbic acid while maintaining the same skin benefits (double win!).
Because it’s oil-soluble, THD dives deep into your skin’s fatty layers (think ceramides and cholesterol) to fight off the kind of free radicals that mess with your skin barrier. This makes it a great pair with water-based vitamin C (ascorbic acid) that mainly works on the surface.
Even at just 0.1%, THD is already showing great antioxidant activity. When used up to 2%, it helps keep your skin happy and calm, especially when it’s stressed from pollution or sun.
Want to fade dark spots or tackle hyperpigmentation? You’ll want 5% or more. Pairing it with brightening buddies like niacinamide or licorice root gives even better results. One study even used 30% THD with other brighteners and saw real results on stubborn discoloration, even in melasma-prone skin.
A note on THD: It’s has a slightly silky, oily texture and usually shows up colorless or pale yellow (though the exact shade can vary by supplier).
While you can sneak it into water-based formulas, it really shines when paired with silicones or oils, which help your skin soak it up better.
THD is pretty stable, but it’s still vulnerable to degradation like ascorbic acid. Too much light or heat (above 113°F / 45°C) can break it down over time. Go for dark and opaque packaging that keeps it safe and shady!
Read more about other types of Vitamin C:
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!
Xanthan gum is used as a stabilizer and thickener within cosmetic products. It helps give products a sticky, thick feeling - preventing them from being too runny.
On the technical side of things, xanthan gum is a polysaccharide - a combination consisting of multiple sugar molecules bonded together.
Xanthan gum is a pretty common and great ingredient. It is a natural, non-toxic, non-irritating ingredient that is also commonly used in food products.