Peptide Skincare & BeautySkin science and ingredient guides

Ingredient or product comparison

RoC Retinol Correxion Eye Cream Versus Timeless Skin Care Matrixyl 3000 Serum

RoC Retinol Correxion Eye Cream Versus Timeless Skin Care Matrixyl 3000 Serum Detailed comparison of RoC Retinol Correxion Eye Cream versus Timeless Skin Care Matrixyl 3000 Serum. This anti-aging eye moisturizer is formulated around Panthenol and Retinol to so

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RoC Retinol Correxion Eye Cream Versus Timeless Skin Care Matrixyl 3000 Serum Detailed comparison of RoC Retinol Correxion Eye Cream versus Timeless Skin Care Matrixyl 3000 Serum. This anti-aging eye moisturizer is formulated around Panthenol and Retinol to soften the look of wrinkles and refine skin texture. This anti-aging serum is formulated around Palmitoyl Tripeptide-1 and Palmitoyl Tetrapeptide-7 to soften the look of wrinkles and refine skin texture. Water Glycerin Lactose C12-15 Alkyl Benzoate Cetearyl Ethylhexanoate PEG-100 Stearate Glyceryl Stearate PEG-8 Stearyl Alcohol Tromethamine Panthenol Carbomer Isopropyl Myristate Methylparaben Disodium EDTA BHT Propylparaben Magnesium Aspartate Zinc Gluconate Chlorhexidine Digluconate Retinol Polysorbate 20 Copper Gluconate Water, Glycerin, Lactose, C12-15 Alkyl Benzoate, Cetearyl Ethylhexanoate, PEG-100 Stearate, Glyceryl Stearate, PEG-8, Stearyl Alcohol, Tromethamine, Panthenol, Carbomer, Isopropyl Myristate, Methylparaben, Disodium EDTA, BHT, Propylparaben, Magnesium Aspartate, Zinc Gluconate, Chlorhexidine Digluconate, Retinol, Polysorbate 20, Copper Gluconate Butylene Glycol Palmitoyl Tripeptide-1 Palmitoyl Tetrapeptide-7 Aloe Barbadensis Leaf Extract Hyaluronic Acid Benzyl Alcohol Dehydroacetic Acid Water, Glycerin, Butylene Glycol, Carbomer, Polysorbate 20, Palmitoyl Tripeptide-1, Palmitoyl Tetrapeptide-7, Aloe Barbadensis Leaf Extract, Hyaluronic Acid, Benzyl Alcohol, Dehydroacetic Acid 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. 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. 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. Polysorbate 20 is a gentle, water-soluble emulsifier and mild surfactant. It stops oil and water from separating to keep your formulas blended and stable. It also acts as a mild penetration enhancer by helping active ingredients absorb slightly better. The common safety discussion around this ingredient involves a manufacturing byproduct called 1,4-dioxane. Trace amounts can form during production but the EU's Scientific Committee on Consumer Safety has concluded that levels at/below 10 ppm in finished products are safe (commercial products consistently fall within acceptable margins). True allergic reactions are uncommon and the CIR Expert Panel has confirmed this ingredient to be safe as used in cosmetics. Because it is derived from lauric acid, it may not be fungal acne safe. 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 hy