Biologique Recherche Sérum A-Glyca A.G.E Protection Serum Versus Is Clinical Active Serum

Biologique Recherche Sérum A-Glyca A.G.E Protection Serum Versus Is Clinical Active Serum Detailed comparison of Biologique Recherche Sérum A-Glyca A.G.E Protection Serum versus Is Clinical Active Serum. This brightening serum is formulated around Salix Alba Bark Extract and Arbutin to fade the look of dark spots. No key ingredients Water Albizia Julibrissin Bark Extract Glycerin Propylene Glycol Phenoxyethanol Decarboxy Carnosine Hcl Papaver Rhoeas Petal Extract Butylene Glycol Ethylhexylglycerin Sodium Benzoate Water, Albizia Julibrissin Bark Extract, Glycerin, Propylene Glycol, Phenoxyethanol, Decarboxy Carnosine Hcl, Papaver Rhoeas Petal Extract, Butylene Glycol, Ethylhexylglycerin, Sodium Benzoate Alcohol Denat. Saccharum Officinarum Extract Vaccinium Myrtillus Fruit/Leaf Extract Triethanolamine Salix Alba Bark Extract Glyceryl Polyacrylate Arbutin Polyporus Umbellatus Extract Menthol Water, Glycerin, Butylene Glycol, Alcohol Denat., Saccharum Officinarum Extract, Vaccinium Myrtillus Fruit/Leaf Extract, Triethanolamine, Salix Alba Bark Extract, Glyceryl Polyacrylate, Arbutin, Polyporus Umbellatus Extract, Menthol, Phenoxyethanol 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. 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 and FDA consider it safe as a preservative at up to 1%, including for children of all ages. Adverse systemic effects only showed up in animal studies at exposures roughly 200x higher than what people get from cosmetics. And despite its very widespread use, this ingredient is a rare sensitizer and allergic reactions are uncommon. 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 a