Peptide Skincare & BeautySkin science and ingredient guides

Ingredient or product comparison

Medix 5.5 Vitamin C + Turmeric Body Cream Versus Olay Regenerist Vitamin C + Peptide 24 SPF 30 Moisturizer

Medix 5.5 Vitamin C + Turmeric Body Cream Versus Olay Regenerist Vitamin C + Peptide 24 SPF 30 Moisturizer Detailed comparison of Medix 5.5 Vitamin C + Turmeric Body Cream versus Olay Regenerist Vitamin C + Peptide 24 SPF 30 Moisturizer. This anti-aging day mo

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Medix 5.5 Vitamin C + Turmeric Body Cream Versus Olay Regenerist Vitamin C + Peptide 24 SPF 30 Moisturizer Detailed comparison of Medix 5.5 Vitamin C + Turmeric Body Cream versus Olay Regenerist Vitamin C + Peptide 24 SPF 30 Moisturizer. This anti-aging day moisturizer is formulated around Niacinamide and 3-O-Ethyl Ascorbic Acid to soften the look of wrinkles and brighten dull-looking skin. Water Cetyl Alcohol Glycerin Dimethicone Butyrospermum Parkii Butter Ceteareth-20 Tetrahexyldecyl Ascorbate Ascorbic Acid Curcuma Longa Root Extract Ferulic Acid Terminalia Ferdinandiana Fruit Extract Pyrus Malus Fruit Extract Zingiber Officinale Root Extract Aloe Barbadensis Leaf Juice Panax Ginseng Root Extract Tocopheryl Acetate Helianthus Annuus Extract Oryza Sativa Bran Extract Rosmarinus Officinalis Leaf Extract Tocopherol Cetearyl Ethylhexanoate Isopropyl Myristate Cetearyl Phosphate Glyceryl Stearate Synthetic Beeswax Carbomer Xanthan Gum Tetrasodium Glutamate Diacetate Parfum Phenoxyethanol Ethylhexylglycerin Caprylyl Glycol Hexylene Glycol Sodium Hydroxide Limonene Linalool Water, Cetyl Alcohol, Glycerin, Dimethicone, Butyrospermum Parkii Butter, Ceteareth-20, Tetrahexyldecyl Ascorbate, Ascorbic Acid, Curcuma Longa Root Extract, Ferulic Acid, Terminalia Ferdinandiana Fruit Extract, Pyrus Malus Fruit Extract, Zingiber Officinale Root Extract, Aloe Barbadensis Leaf Juice, Panax Ginseng Root Extract, Tocopheryl Acetate, Helianthus Annuus Extract, Oryza Sativa Bran Extract, Rosmarinus Officinalis Leaf Extract, Tocopherol, Cetearyl Ethylhexanoate, Isopropyl Myristate, Cetearyl Phosphate, Glyceryl Stearate, Synthetic Beeswax, Carbomer, Xanthan Gum, Tetrasodium Glutamate Diacetate, Parfum, Phenoxyethanol, Ethylhexylglycerin, Caprylyl Glycol, Hexylene Glycol, Sodium Hydroxide, Limonene, Linalool Butyl Methoxydibenzoylmethane 3% Homosalate 9% Ethylhexyl Salicylate 4.5% Octocrylene 6% Zea Mays Starch Niacinamide 3-O-Ethyl Ascorbic Acid Palmitoyl Pentapeptide-4 Panthenol Dimethiconol Cetearyl Glucoside Cetearyl Alcohol Stearic Acid Palmitic Acid Stearyl Alcohol Behenyl Alcohol Disodium EDTA Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer PEG-100 Stearate 1,2-Hexanediol Avena Sativa Peptide Butyl Methoxydibenzoylmethane 3%, Homosalate 9%, Ethylhexyl Salicylate 4.5%, Octocrylene 6%, Water, Glycerin, Zea Mays Starch, Niacinamide, 3-O-Ethyl Ascorbic Acid, Palmitoyl Pentapeptide-4, Panthenol, Dimethicone, Caprylyl Glycol, Dimethiconol, Cetearyl Glucoside, Cetearyl Alcohol, Stearic Acid, Palmitic Acid, Stearyl Alcohol, Cetyl Alcohol, Behenyl Alcohol, Disodium EDTA, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, PEG-100 Stearate, 1,2-Hexanediol, Phenoxyethanol, Parfum, Ascorbic Acid, Avena Sativa Peptide These ingredients are found in both products. Ingredients higher up in an ingredient list are typically present in a larger amount. Ascorbic Acid is is pure Vitamin C and is the biologically active form used directly by skin. Not only is vitamin C great for your overall health and immune system, but it also has plenty of benefits for your skin. It is best supported by academic literature for: Topical vitamin C has been shown to help neutralize oxidative stress from UV and pollution, helping to improve photoaging and hyperpigmentation when used consistently. One clinical study found that using 5% topical vitamin C for six months improved signs of photodamaged skin, both on the surface and in the deeper structural layers of the skin. While vitamin C doesn’t replace sunscreen, studies show it can boost photoprotection when combined with Vitamin E and ferulic acid. These two ingredients help improve stability and protective effects. The big downside of this ingredient is formulation difficulty. Vitamin C is prone to oxidation and doesn't penetrate the skin unless formulated correctly. Research found that vitamin C absorbs into the skin best at a low pH (< 3.5) with about 20% being the upper limit for effective absorption. Skin levels can saturate after repeated application; this means your skin won’t keep absorbing more once it’s full of vitamin C. This is why more isn’t always better with vitamin C and why very high concentrations don’t necessarily give extra benefits. Ascorbic acid generally works well with many skincare ingredients but can be irritating when combined with other active ingredients. Strong oxidizing acne treatments like benzoyl peroxide can reduce the effectiveness of vitamin C if they are used at the same time; they are often recommended for use at different times of day. Read more about other types of Vitamin C: Foods rich with vitamin C include oranges, strawberries, broccoli, bell peppers, and more. When consuming Vitamin C, your skin receives a portion of the nutrients. Caprylyl Glycol is a humectant, skin conditioner, emollient, and preservative booster derived from either caprylic acid or synthetically created. Typical use levels vary from 0.3-1% as a preservative booster and go up to 2% to condition skin. Because it is not a free-fatty acid, this ingredient is fungal acne safe (there's nothing for Malassezia to feed on). 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. Dimethicone is a type of synthetic silicone created from natural materials such