Biologique Recherche Sérum Erythros Redness-Reducing Facial Serum Versus ZO Skin Health Rozatrol

Biologique Recherche Sérum Erythros Redness-Reducing Facial Serum Versus ZO Skin Health Rozatrol Detailed comparison of Biologique Recherche Sérum Erythros Redness-Reducing Facial Serum versus ZO Skin Health Rozatrol. This calming serum is formulated around Niacinamide and Camellia Sinensis Leaf Extract to calm redness and strengthen the skin barrier. This calming serum is formulated around Panthenol and Opuntia Ficus-Indica Stem Extract to calm redness and strengthen the skin barrier. Water Niacinamide Butylene Glycol Propylene Glycol Glycerin Empetrum Nigrum Fruit Juice Pentylene Glycol Arnica Montana Flower Extract Cupressus Sempervirens Seed Extract Polygonatum Multiflorum Rhizome/Root Extract Plankton Extract Pueraria Lobata Root Extract Camellia Sinensis Leaf Extract Rosmarinyl Glucoside Caffeyl Glucoside Gallyl Glucoside Sodium Gluconate Sodium Benzoate Phenoxyethanol Potassium Sorbate Citric Acid Water, Niacinamide, Butylene Glycol, Propylene Glycol, Glycerin, Empetrum Nigrum Fruit Juice, Pentylene Glycol, Arnica Montana Flower Extract, Cupressus Sempervirens Seed Extract, Polygonatum Multiflorum Rhizome/Root Extract, Plankton Extract, Pueraria Lobata Root Extract, Camellia Sinensis Leaf Extract, Rosmarinyl Glucoside, Caffeyl Glucoside, Gallyl Glucoside, Sodium Gluconate, Sodium Benzoate, Phenoxyethanol, Potassium Sorbate, Citric Acid Cetyl Alcohol Helianthus Annuus Seed Oil C12-15 Alkyl Benzoate Palmitoyl Glycine Neopentyl Glycol Diethylhexanoate Dimethicone Panthenol Glyceryl Stearate PEG-100 Stearate Potassium Cetyl Phosphate Lactose Lactis Proteinum Brassica Oleracea Italica Extract Farnesyl Acetate Farnesol Panthenyl Triacetate Leontopodium Alpinum Meristem Cell Culture Marrubium Vulgare Meristem Cell Culture Lecithin Opuntia Ficus-Indica Stem Extract Laminaria Digitata Extract PEG-35 Castor Oil Carbomer/Papain Crosspolymer Tocopherol Xanthan Gum Caprylyl Glycol Hydrolyzed Algin Neopentyl Glycol Diisostearate Algin Galactoarabinan Schizophyllan PEG-12 Glyceryl Laurate Magnesium Aluminum Silicate Disodium EDTA Maltodextrin 1,2-Hexanediol Aminomethyl Propanol Lactic Acid Chlorphenesin Parfum Water, Glycerin, Cetyl Alcohol, Helianthus Annuus Seed Oil, C12-15 Alkyl Benzoate, Palmitoyl Glycine, Neopentyl Glycol Diethylhexanoate, Dimethicone, Panthenol, Glyceryl Stearate, PEG-100 Stearate, Potassium Cetyl Phosphate, Lactose, Lactis Proteinum, Brassica Oleracea Italica Extract, Farnesyl Acetate, Farnesol, Panthenyl Triacetate, Leontopodium Alpinum Meristem Cell Culture, Marrubium Vulgare Meristem Cell Culture, Lecithin, Opuntia Ficus-Indica Stem Extract, Laminaria Digitata Extract, PEG-35 Castor Oil, Carbomer/Papain Crosspolymer, Tocopherol, Xanthan Gum, Caprylyl Glycol, Hydrolyzed Algin, Neopentyl Glycol Diisostearate, Algin, Galactoarabinan, Schizophyllan, PEG-12 Glyceryl Laurate, Magnesium Aluminum Silicate, Disodium EDTA, Maltodextrin, 1,2-Hexanediol, Aminomethyl Propanol, Lactic Acid, Citric Acid, Chlorphenesin, Phenoxyethanol, Parfum 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. Citric Acid is an alpha hydroxy acid (AHA) naturally found in citrus fruits like oranges, lemons, and limes. Like other AHAs, citric acid can exfoliate skin by breaking down the bonds that hold dead skin cells together. This helps reveal smoother and brighter skin underneath. However, this exfoliating effect only happens at high concentrations (20%) which can be hard to find in cosmetic products. Due to this, citric acid is usually included in small amounts as a pH adjuster. This helps keep products slightly more acidic and compatible with skin's natural pH. In skincare formulas, citric acid can: While it can provide some skin benefits, research shows lactic acid and glycolic acid are generally more effective and less irritating exfoliants. Most citric acid used in skincare today is made by fermenting sugars (usually from molasses). This synthetic version is identical to the natural citrus form but easier to stabilize and use in formulations. Rosacea skin has a lower threshold for acids generally, with 62.5% of rosacea subjects in one study reacting to lactic acid in a sting test. This is why we mark citric acid as a potential rosacea trigger. However, this ingredient shows up as a pH adjuster or chelator at roughly 0.1-1% in many products. These low levels are unlikely to be an issue for rosacea skin and becomes a potential trigger at exfoliating concentrations (20%). Because everybody's skin is unique, we recommend a patch test if you are unsure. 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. 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.