Skin science article
Cocokind Electrolyte Water Cream Versus Paula's Choice Water-Infusing Electrolyte Moisturizer
Cocokind Electrolyte Water Cream Versus Paula's Choice Water-Infusing Electrolyte Moisturizer This barrier-repair moisturizer is formulated around Magnesium PCA and Sodium PCA to strengthen the skin barrier and hydrate skin. This moisturizer is formulated arou
Cocokind Electrolyte Water Cream Versus Paula's Choice Water-Infusing Electrolyte Moisturizer
This barrier-repair moisturizer is formulated around Magnesium PCA and Sodium PCA to strengthen the skin barrier and hydrate skin.
This moisturizer is formulated around Potassium PCA and Magnesium PCA to hydrate skin.
What's inside
Key Ingredients
Benefits
Concerns
No concerns
Ingredients Side-by-side
Water
Glycerin
Propanediol
Coco-Caprylate/Caprate
Caprylic/Capric Triglyceride
Sodium Acrylates Copolymer
Pentylene Glycol
Magnesium PCA
Sodium PCA
Zinc PCA
Manganese PCA
Beta-Glucan
Chlamydomonas Extract
Sea Water
Ceramide NP
Lecithin
Caprylyl Glycol
Glyceryl Acrylate/Acrylic Acid Copolymer
Maltodextrin
Aloe Barbadensis Flower Extract
Curcuma Longa Root Extract
Solanum Melongena Fruit Extract
Ocimum Basilicum Flower/Leaf Extract
Coccinia Indica Fruit Extract
Melia Azadirachta Leaf Extract
Melia Azadirachta Flower Extract
Corallina Officinalis Extract
Ocimum Sanctum Leaf Extract
Ethylhexylglycerin
Water, Glycerin, Propanediol, Coco-Caprylate/Caprate, Caprylic/Capric Triglyceride, Sodium Acrylates Copolymer, Pentylene Glycol, Magnesium PCA, Sodium PCA, Zinc PCA, Manganese PCA, Beta-Glucan, Chlamydomonas Extract, Sea Water, Ceramide NP, Lecithin, Caprylyl Glycol, Glyceryl Acrylate/Acrylic Acid Copolymer, Maltodextrin, Aloe Barbadensis Flower Extract, Curcuma Longa Root Extract, Solanum Melongena Fruit Extract, Ocimum Basilicum Flower/Leaf Extract, Coccinia Indica Fruit Extract, Melia Azadirachta Leaf Extract, Melia Azadirachta Flower Extract, Corallina Officinalis Extract, Ocimum Sanctum Leaf Extract, Ethylhexylglycerin
Dimethicone
Butylene Glycol
Stearic Acid
Glyceryl Stearate
Isohexadecane
Potassium PCA
Calcium PCA
Ethylhexyl Olivate
Polyglyceryl-4 Olivate
Pyrus Malus Fruit Extract
Laminaria Saccharina Extract
Actinidia Chinensis Fruit Extract
Coffea Arabica Seed Extract
Biotin/Folic Acid/Cyanocobalamin/Niacinamide/Pantothenic Acid/Pyridoxine/Riboflavin/Thiamine/Yeast Polypeptides
Garcinia Mangostana Peel Extract
Prunus Serotina Fruit Extract
Squalane
Ceramide EOP
Ceramide AP
Pisum Sativum Extract
Phytosphingosine
Cholesterol
Acetyl Hexapeptide-37
Oryza Sativa Bran Extract
Tocopherol
Creatine
Bisabolol
Sorbitol
Inositol
Xylitol
Sodium Levulinate
Behenyl Behenate
Tribehenin
Sodium Lauroyl Lactylate
Xanthan Gum
Acrylates/C10-30 Alkyl Acrylate Crosspolymer
Carbomer
Sodium Hydroxide
Tetrasodium EDTA
Phenoxyethanol
Water, Glycerin, Dimethicone, Butylene Glycol, Propanediol, Stearic Acid, Glyceryl Stearate, Isohexadecane, Potassium PCA, Magnesium PCA, Calcium PCA, Ethylhexyl Olivate, Polyglyceryl-4 Olivate, Pyrus Malus Fruit Extract, Laminaria Saccharina Extract, Actinidia Chinensis Fruit Extract, Coffea Arabica Seed Extract, Biotin/Folic Acid/Cyanocobalamin/Niacinamide/Pantothenic Acid/Pyridoxine/Riboflavin/Thiamine/Yeast Polypeptides, Garcinia Mangostana Peel Extract, Prunus Serotina Fruit Extract, Squalane, Ceramide EOP, Ceramide AP, Ceramide NP, Pisum Sativum Extract, Phytosphingosine, Cholesterol, Acetyl Hexapeptide-37, Oryza Sativa Bran Extract, Tocopherol, Creatine, Bisabolol, Sorbitol, Inositol, Xylitol, Caprylic/Capric Triglyceride, Sodium Levulinate, Behenyl Behenate, Tribehenin, Sodium Lauroyl Lactylate, Xanthan Gum, Sodium Acrylates Copolymer, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Carbomer, Sodium Hydroxide, Tetrasodium EDTA, 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.
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%.
Ceramide NP (formerly known as Ceramide 3) is one of the skin's naturally occurring lipids.
Since ceramides are the major lipid components of the skin, they are crucial for maintaining skin barrier and hydration. Ceramide NP most closely mirrors the dominant kind in human skin amongst ceramide subtypes.
This ceramide works by slotting into gaps within the stratum corneum's lipid matrix to limit trans-epidermal water loss (TEWL) and shield the skin against external irritants.
A study with 312 patients found that using a ceramide-containing routine for 4 weeks reduced the severity of atopic dermatitis by over 61%.
Another clinical study in subjects aged 60 and older found that a ceramide body wash and moisturizer improved skin dryness and itchy skin in 15 days.
Overall, ceramides are considered non-irritating and safety tests have found little to no observable adverse effects from using this ingredient.
Ceramide NP is usually sourced from plants (like soybean or rice bran), or produced synthetically.
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.
This ingredient is the magnesium salt of PCA (Pyrrolidone Carboxylic Acid). It is a great skin hydrator for the top layers of skin.
PCA is a natural humectant, meaning it draws water from the air to your outer layer of skin.
One study found magnesium ions improved skin hydration in the outer layer of skin, or the stratum corneum. However, it did not improve TEWL, or the transepidermal water loss. The TEWL is an indicator of how healthy your skin barrier function is. This study primarily looked at healthy skin with intact skin barrier.
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.
This ingredient is a synthetic, salt form polymer built from acrylic acid, ethacrylic acid, or their simple esters. It works as a binder, film former, and viscosity increasing agent.
Typical concentrations start at around 0.5% but can go up to 25% for film-forming or binding.
The CIR Expert Panel assessed the safety of 126 acrylates copolymers and concluded they are safe in cosmetics at current use levels when formulated to be non-irritating. They also noted the levels present in finished cosmetic products are not considered a safety risk and Genotoxicity testing (Ames tests, chromosomal aberration assays) has come back negative across the board.
Though the raw building blocks (like acrylic acid) can be irritating on their own, cosmetic-grade versions go through purification to keep levels extremely low.
Sodium Acrylates Copolymer is a large molecule that doesn't penetrate skin barrier in any meaningful way.
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!