Paula's Choice Retinol Skin-Smoothing Body Treatment Versus PCA Skin Collagen Hydrator

Paula's Choice Retinol Skin-Smoothing Body Treatment Versus PCA Skin Collagen Hydrator Detailed comparison of Paula's Choice Retinol Skin-Smoothing Body Treatment versus PCA Skin Collagen Hydrator. This smoothing moisturizer is formulated around Retinol and Tetrahexyldecyl Ascorbate to refine skin texture and soften the look of wrinkles. This calming moisturizer is formulated around Butyrospermum Parkii Butter and Tetrahexyldecyl Ascorbate to calm redness and hydrate skin. Water Cetearyl Alcohol Cetearyl Ethylhexanoate Cyclopentasiloxane Dimethicone Glycerin Butylene Glycol Cetyl Palmitate Butyrospermum Parkii Butter Glyceryl Stearate PEG-100 Stearate Oenothera Biennis Oil Vitis Vinifera Seed Oil Cetyl Alcohol Retinol Tetrahexyldecyl Ascorbate Tocopheryl Acetate Caprylic/Capric Triglyceride Panthenol Carnosine Dimethiconol Dimethicone/Vinyl Dimethicone Crosspolymer Beeswax Magnesium Aluminum Silicate Sodium Hydroxide Xanthan Gum Dicaprylyl Carbonate Decylene Glycol Disodium EDTA Chlorphenesin Phenoxyethanol Water, Cetearyl Alcohol, Cetearyl Ethylhexanoate, Cyclopentasiloxane, Dimethicone, Glycerin, Butylene Glycol, Cetyl Palmitate, Butyrospermum Parkii Butter, Glyceryl Stearate, PEG-100 Stearate, Oenothera Biennis Oil, Vitis Vinifera Seed Oil, Cetyl Alcohol, Retinol, Tetrahexyldecyl Ascorbate, Tocopheryl Acetate, Caprylic/Capric Triglyceride, Panthenol, Carnosine, Dimethiconol, Dimethicone/Vinyl Dimethicone Crosspolymer, Beeswax, Magnesium Aluminum Silicate, Sodium Hydroxide, Xanthan Gum, Dicaprylyl Carbonate, Decylene Glycol, Disodium EDTA, Chlorphenesin, Phenoxyethanol C12-15 Alkyl Benzoate Isopropyl Palmitate Polysorbate 60 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 Potassium Cetyl Phosphate Prunus Amygdalus Dulcis Oil Sodium Hyaluronate Sodium PCA Tocopherol Carbomer 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. This ingredient is also known as shea butter. It is a plant-derived extract from the nuts of the Africa shea tree and one of the most well-studied emollients. Because it has a high concentration of fatty acids (primarily oleic, stearic, and linoleic) it is able to form a protective barrier on the skin's surface. This helps seal in moisture and prevents transepidermal water loss (TEWL). In vitro research found an increase in skin hydration by 58% and a decrease in TEWL by 37.8% after 24 hours of applying this ingredient (pretty impressive for a single ingredient!). Besides hydration, shea butter also contains triterpenes that have anti-inflammatory potential. In particule, lupeol cinnamate has shown the highest anti-inflammatory activity in vivo. Shea butter also contains vitamins A and E which may contribute to antioxidant activity. While Shea Butter has an SPF rating of about 3-4, it is not a sunscreen replacement. This ingredient may not be fungal acne safe because its fatty acids fall within the C11-C24 range that the Malassezia yeast can metabolize. Cetearyl alcohol is a waxy mixture of two fatty alcohols: cetyl alcohol and stearyl alcohol. It is an emollient and emulsifier. Despite having "alcohol" in its name, it has nothing to do with drying solvent alcohols; the FDA also allows "alcohol-free" products to contain fatty alcohols like this ingredient. It plays several roles in a formula: Typical use levels for this ingredient sit around 1-10% and the Cosmetic Ingredient Review Expert Panel has affirmed safety at concentrations up to 25% in leave-on products. Multiple assessments have found it to be non-irritating and non-sensitizing to most people. However, there have been some cases of allergic contact dermatitis in patients with chronically compromised skin barriers. Cetearyl alcohol has a comedogenic rating of 2 and irritancy rating of 1. Both of these numbers come from the 1989 study that used rabbit ears; a "2" means mildly comedogenic and a "1" means low irritancy. Here's the catch: rabbit skin is more sensitive than human skin and throws a lot of false positives. A 1996 reappraisal found that ingredients rated 1-2 in the rabbit ear tests are generally safe for humans. Remember comedogenic ratings are unable to assess the entire formula of a product or how it will react on your skin. Just be sure to patch test if you are unsure about certain ingredients. This ingredient is not fungal acne safe. Cetearyl alcohol is a fatty alcohol with chain lengths that fall within the range that Malassezia can metabolize. A 2019 study has also observed Malassezia growth in the presence of this ingredient, confirming it to be not-fungal acne safe. 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 r