Paula's Choice Skin Recovery Replenishing Moisturizer Versus PCA Skin Collagen Hydrator

Paula's Choice Skin Recovery Replenishing Moisturizer Versus PCA Skin Collagen Hydrator Detailed comparison of Paula's Choice Skin Recovery Replenishing Moisturizer EU versus PCA Skin Collagen Hydrator. This barrier-repair moisturizer is formulated around Oenothera Biennis Oil and Panthenol to strengthen the skin barrier and hydrate skin. This calming moisturizer is formulated around Butyrospermum Parkii Butter and Tetrahexyldecyl Ascorbate to calm redness and hydrate skin. Water Cetearyl Ethylhexanoate Butylene Glycol Glycereth-26 Oenothera Biennis Oil Cetyl Alcohol Neopentyl Glycol Diheptanoate Cyclopentasiloxane Stearic Acid Glyceryl Stearate PEG-100 Stearate Glycerin Cyclohexasiloxane Dimethicone Panthenol Palmitoyl Tripeptide-1 Palmitoyl Tetrapeptide-7 Sodium Hyaluronate Tocopheryl Linoleate Tocopheryl Acetate Tocopherol Magnesium Ascorbyl Phosphate Ascorbyl Palmitate Dipotassium Glycyrrhizate Sodium PCA Anthemis Nobilis Flower Extract Aloe Barbadensis Leaf Juice Sodium Ascorbyl Phosphate Linoleic Acid Linolenic Acid Pentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate Saccharide Isomerate Hydroxypropyl Guar Allantoin Rosa Moschata Seed Oil Polysorbate 20 Cetyl Hydroxyethylcellulose Carbomer Sodium Citrate Trisodium EDTA Batyl Alcohol Sodium Hydroxide Phenoxyethanol Chlorphenesin Benzoic Acid Sorbic Acid Water, Cetearyl Ethylhexanoate, Butylene Glycol, Glycereth-26, Oenothera Biennis Oil, Cetyl Alcohol, Neopentyl Glycol Diheptanoate, Cyclopentasiloxane, Stearic Acid, Glyceryl Stearate, PEG-100 Stearate, Glycerin, Cyclohexasiloxane, Dimethicone, Panthenol, Palmitoyl Tripeptide-1, Palmitoyl Tetrapeptide-7, Sodium Hyaluronate, Tocopheryl Linoleate, Tocopheryl Acetate, Tocopherol, Magnesium Ascorbyl Phosphate, Ascorbyl Palmitate, Dipotassium Glycyrrhizate, Sodium PCA, Anthemis Nobilis Flower Extract, Aloe Barbadensis Leaf Juice, Sodium Ascorbyl Phosphate, Linoleic Acid, Linolenic Acid, Pentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate, Saccharide Isomerate, Hydroxypropyl Guar, Allantoin, Rosa Moschata Seed Oil, Polysorbate 20, Cetyl Hydroxyethylcellulose, Carbomer, Sodium Citrate, Trisodium EDTA, Batyl Alcohol, Sodium Hydroxide, Phenoxyethanol, Chlorphenesin, Benzoic Acid, Sorbic Acid C12-15 Alkyl Benzoate Cetearyl Alcohol Isopropyl Palmitate Butyrospermum Parkii Butter Polysorbate 60 Tetrahexyldecyl Ascorbate Aloe Barbadensis Leaf Extract Chamomilla Recutita Flower Extract Cucumis Sativus Fruit Extract Ethylhexylglycerin Glycol Distearate Helianthus Annuus Seed Oil Hydrolyzed Wheat Protein Olea Europaea Fruit Oil Potassium Cetyl Phosphate Prunus Amygdalus Dulcis Oil Xanthan Gum Tetrasodium EDTA Water, C12-15 Alkyl Benzoate, Glycerin, Glyceryl Stearate, Cetearyl Alcohol, Isopropyl Palmitate, Butyrospermum Parkii Butter, Cyclopentasiloxane, Dimethicone, Cetyl Alcohol, Polysorbate 60, Tetrahexyldecyl Ascorbate, Allantoin, Aloe Barbadensis Leaf Extract, Chamomilla Recutita Flower Extract, Cucumis Sativus Fruit Extract, Ethylhexylglycerin, Glycol Distearate, Helianthus Annuus Seed Oil, Hydrolyzed Wheat Protein, Olea Europaea Fruit Oil, Phenoxyethanol, Potassium Cetyl Phosphate, Prunus Amygdalus Dulcis Oil, Sodium Hyaluronate, Sodium PCA, Tocopherol, Xanthan Gum, Carbomer, Sodium Hydroxide, Tetrasodium EDTA Be the first to review These ingredients are found in both products. Ingredients higher up in an ingredient list are typically present in a larger amount. Allantoin is a soothing ingredient known for its protective and moisturizing properties; it's basically a quiet workhorse ingredient you can find in a huge range of cosmetics. Though it can be derived from the comfrey plant, allantoin is produced synthetically for cosmetic products to ensure purity. Research shows it can encourage your skin cells to turn over and renew by stimulating keratinocyte and fibroblast proliferation. It also has mild keratolytic properties to help loosen and shed dead skin cells without being harsh. Studies also suggest allantoin can help calm inflammation by dialing down some of the chemical signals your skin sends out when it is irritated. This ingredient is typically used in the 0.1-0.5% range, and the FDA recognizes it as a skin protectant in OTC products up to 2%. Overall, allantoin is a wonderful addition to most routines; it is stable across a wide pH range (~4-8), works well with other ingredients, and is considered non-sensitizing/non-irritating. Fun fact: Allantoin is naturally occurring in comfrey root, beets, chamomile, and wheat sprouts. Our bodies even produce it as a byproduct of uric acid metabolism. Carbomer is a synthetic thickening and gelling agent. It's basically the ingredient that gives a lot of serums, gels, creams, and sunscreens their smooth, non-sticky texture. Although legally permitted at very high levels, carbomers are normally used at concentrations below 1%. It also needs to be neutralized to actually thicken, and because it is a large molecule, it doesn't really penetrate the skin barrier. Allergy-wise, the risk is very low. Clinical studies show carbomers have low potential for skin irritation/sensitization even at concentrations up to 100%. A 2024 UK study patch-tested 1,302 patients and found true allergy to the parent group of carbomer to be rare with no confirmed relevant reactions. Cetyl Alcohol is a fatty alcohol. Fatty Alcohols are most often used as an emollient or to thicken a product. Its main roles are: Though it has "alcohol" in the name, it is not related to denatured alcohol or ethyl alcohol. The FDA allows products labeled "alcohol-free" to have fatty alcohols. This ingredient may not be fungal acne safe. It is a primary fatty alcohol with a chain length above 12 carbons. A study from 2019 show Malassezia can feed on fatty alcohols in this range, so it may trigger fungal acne in those prone to it. Cyclopentasiloxane (D5) is a lightweight silicone that mostly acts as an emollient and solvent in cosmetics. Its the reason your products feel silky, fast-spreading, and non-greasy. Since D5 is volatile, it does its thing and then evaporates off the skin quickly. The safety profile of this ingredient is reassuring; the US CIR Expert Panel concluded D5 is safe as used in cosmetics and Health Canada concluded that D5 is not harmful to human health or t