Peptide Skincare & BeautySkin science and ingredient guides

Ingredient or product comparison

La Roche-Posay Hyalu B5 Face Serum with Hyaluronic Acid Versus Cream Co. Hyaluronic Acid & Peptide Serum

La Roche-Posay Hyalu B5 Face Serum with Hyaluronic Acid Versus Cream Co. Hyaluronic Acid & Peptide Serum Detailed comparison of La Roche-Posay Hyalu B5 Face Serum with Hyaluronic Acid versus Cream Co. Hyaluronic Acid & Peptide Serum. This hydrating serum is fo

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La Roche-Posay Hyalu B5 Face Serum with Hyaluronic Acid Versus Cream Co. Hyaluronic Acid & Peptide Serum Detailed comparison of La Roche-Posay Hyalu B5 Face Serum with Hyaluronic Acid versus Cream Co. Hyaluronic Acid & Peptide Serum. This hydrating serum is formulated around Panthenol and Madecassoside to hydrate skin and strengthen the skin barrier. This hydrating serum is formulated around Niacinamide and Sodium Hyaluronate to hydrate skin and soften the look of wrinkles. Water Glycerin Alcohol Denat. Propylene Glycol Panthenol Pentylene Glycol Dimethicone PEG-6 Caprylic/Capric Glycerides PPG-6-Decyltetradeceth-30 Glyceryl Isostearate Madecassoside Sodium Hyaluronate Ammonium Polyacryloyldimethyl Taurate Disodium EDTA Hydrolyzed Hyaluronic Acid Caprylyl Glycol Citric Acid Xanthan Gum Butylene Glycol Tocopherol Phenoxyethanol Parfum Water, Glycerin, Alcohol Denat., Propylene Glycol, Panthenol, Pentylene Glycol, Dimethicone, PEG-6 Caprylic/Capric Glycerides, PPG-6-Decyltetradeceth-30, Glyceryl Isostearate, Madecassoside, Sodium Hyaluronate, Ammonium Polyacryloyldimethyl Taurate, Disodium EDTA, Hydrolyzed Hyaluronic Acid, Caprylyl Glycol, Citric Acid, Xanthan Gum, Butylene Glycol, Tocopherol, Phenoxyethanol, Parfum Niacinamide Glyceryl Acrylate/Acrylic Acid Copolymer Pvm/Ma Copolymer Propanediol Hydrolyzed Glycosaminoglycans Hyaluronic Acid Sodium Hyaluronate Crosspolymer Polysorbate 20 Palmitoyl Tripeptide-1 Palmitoyl Tetrapeptide-7 Sodium PCA Carbomer Sodium Hydroxide Caffeine Aloe Barbadensis Leaf Juice Allantoin Benzoic Acid Water, Butylene Glycol, Glycerin, Niacinamide, Glyceryl Acrylate/Acrylic Acid Copolymer, Propylene Glycol, Pvm/Ma Copolymer, Propanediol, Hydrolyzed Glycosaminoglycans, Sodium Hyaluronate, Hydrolyzed Hyaluronic Acid, Hyaluronic Acid, Sodium Hyaluronate Crosspolymer, Polysorbate 20, Palmitoyl Tripeptide-1, Palmitoyl Tetrapeptide-7, Phenoxyethanol, Sodium PCA, Carbomer, Sodium Hydroxide, Caffeine, Xanthan Gum, Aloe Barbadensis Leaf Juice, Allantoin, Benzoic Acid These ingredients are found in both products. Ingredients higher up in an ingredient list are typically present in a larger amount. Butylene Glycol (or BG) is used within cosmetic products for a few different reasons: Overall, Butylene Glycol is a safe and well-rounded ingredient that works well with other ingredients. Though this ingredient works well with most skin types, some people with sensitive skin may experience a reaction such as allergic rashes, closed comedones, or itchiness. 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. Hydrolyzed Hyaluronic Acid is hyaluronic acid (HA) that is broken down into lower molecular weight fragments. It's a humectant that pulls and holds water in the skin to help with hydration, plumpness, and reduce transepidermal water loss. Because hydrolyzed hyaluronic acid is smaller in size, it can slip past your outermost layer of skin more easily than full-sized HA. Most formulations will combine all sizes to get the best of both worlds. Typical usage levels range from 0.01-1%. Any percentage higher than 2% might become goopy and tacky. Phenoxyethanol is one of the most widely used preservatives in skincare (and for good reason!). It has a large spectrum of antimicrobial activity and especially effective bacteria, yeast, and mold while only having a weak effect on your skin's natural microbiome. On a cellular level, it disrupts the cell membranes of microbes by poking holes that make the cell leak. This shuts down the chemical reactions the microbe needs to make energy so it can no longer survive. Another perk of this ingredient is that it stays functional across a wide pH range (3-10). You'll often see it paired with boosters like Ethylhexylglycerin; one study showed that a 1:9 ratio of Ethylhexylglycerin to Phenoxyethanol damages bacterial membranes as effectively as doubling the Phenoxyethanol concentration on its own. Typical use concentrations range from 0.3-1% depending on the formula, and this ingredient is capped at 1% int the EU. Safety-wise, the fear mongering does not hold up to the evidence. The EU's Scientific Committee on Consumer Safety a