Biologique Recherche Sérum Grand Millésime Youth Elixir Versus Biologique Recherche Fluide VIP O2 Extreme Oxygenating Elixir

Biologique Recherche Sérum Grand Millésime Youth Elixir Versus Biologique Recherche Fluide VIP O2 Extreme Oxygenating Elixir Detailed comparison of Biologique Recherche Sérum Grand Millésime Youth Elixir versus Biologique Recherche Fluide VIP O2 Extreme Oxygenating Elixir. This smoothing serum is formulated around Lactic Acid and Gluconolactone to refine skin texture and soften the look of wrinkles. This brightening serum is formulated around Niacinamide and Lactic Acid to brighten dull-looking skin and refine skin texture. Water Propylene Glycol Glycerin Lactic Acid Cucumis Sativus Fruit Extract Gluconolactone Hydrolyzed Silk Niacinamide Magnesium Chloride Vinegar Sodium Hyaluronate Yeast Extract Mimosa Tenuiflora Bark Extract Allium Cepa Bulb Extract Commiphora Myrrha Resin Extract Hamamelis Virginiana Bark/Leaf/Twig Extract Hypericum Perforatum Flower/Leaf/Stem Extract Myrtus Communis Extract Rhizobian Gum Pyridoxine Hcl Thiamine Hcl Allantoin Urea Serine Salicylic Acid Tea-Lactate Citric Acid Sodium Lactate Potassium Sorbate Sodium Benzoate Sorbitol Chlorphenesin Phenoxyethanol Sorbic Acid Alcohol Water, Propylene Glycol, Glycerin, Lactic Acid, Cucumis Sativus Fruit Extract, Gluconolactone, Hydrolyzed Silk, Niacinamide, Magnesium Chloride, Vinegar, Sodium Hyaluronate, Yeast Extract, Mimosa Tenuiflora Bark Extract, Allium Cepa Bulb Extract, Commiphora Myrrha Resin Extract, Hamamelis Virginiana Bark/Leaf/Twig Extract, Hypericum Perforatum Flower/Leaf/Stem Extract, Myrtus Communis Extract, Rhizobian Gum, Pyridoxine Hcl, Thiamine Hcl, Allantoin, Urea, Serine, Salicylic Acid, Tea-Lactate, Citric Acid, Sodium Lactate, Potassium Sorbate, Sodium Benzoate, Sorbitol, Chlorphenesin, Phenoxyethanol, Sorbic Acid, Alcohol Perfluorodecalin Polyperfluoromethylisopropyl Ether Poloxamer 188 Fragaria Vesca Leaf Extract Gossypium Herbaceum Extract Juglans Regia Seed Extract Dimethylmethoxy Chromanol Calcium Gluconate Silica Lecithin Glyceryl Caprylate Xanthan Gum Diisopropyl Adipate Propanediol Polyacrylate Crosspolymer-6 Acrylic Acid T-Butyl Alcohol Disodium EDTA Sodium Hydroxide Benzoic Acid Sodium Metabisulfite Water, Perfluorodecalin, Polyperfluoromethylisopropyl Ether, Poloxamer 188, Glycerin, Fragaria Vesca Leaf Extract, Gossypium Herbaceum Extract, Juglans Regia Seed Extract, Yeast Extract, Niacinamide, Lactic Acid, Sodium Lactate, Dimethylmethoxy Chromanol, Allantoin, Serine, Sodium Hyaluronate, Gluconolactone, Calcium Gluconate, Silica, Sorbitol, Lecithin, Glyceryl Caprylate, Xanthan Gum, Diisopropyl Adipate, Propylene Glycol, Propanediol, Tea-Lactate, Polyacrylate Crosspolymer-6, Acrylic Acid, Urea, T-Butyl Alcohol, Disodium EDTA, Phenoxyethanol, Sodium Benzoate, Sodium Hydroxide, Benzoic Acid, Sodium Metabisulfite, Sorbic Acid These ingredients are found in both products. Ingredients higher up in an ingredient list are typically present in a larger amount. Allantoin is a soothing ingredient known for its protective and moisturizing properties; it's basically a quiet workhorse ingredient you can find in a huge range of cosmetics. Though it can be derived from the comfrey plant, allantoin is produced synthetically for cosmetic products to ensure purity. Research shows it can encourage your skin cells to turn over and renew by stimulating keratinocyte and fibroblast proliferation. It also has mild keratolytic properties to help loosen and shed dead skin cells without being harsh. Studies also suggest allantoin can help calm inflammation by dialing down some of the chemical signals your skin sends out when it is irritated. This ingredient is typically used in the 0.1-0.5% range, and the FDA recognizes it as a skin protectant in OTC products up to 2%. Overall, allantoin is a wonderful addition to most routines; it is stable across a wide pH range (~4-8), works well with other ingredients, and is considered non-sensitizing/non-irritating. Fun fact: Allantoin is naturally occurring in comfrey root, beets, chamomile, and wheat sprouts. Our bodies even produce it as a byproduct of uric acid metabolism. Gluconolactone is a PHA. PHAs are a great gentle alternative to traditional AHAs. When applied, Gluconolactone has the same affect on skin as AHAs such as lactic acid. It helps dissolve the dead skin cells in the top layer of your skin. This improves texture and brightens the skin. PHAs are more gentle than AHAs due to their larger structure. They do not penetrate as deeply as AHAs and take a longer time to dissolve dead cells. Studies show PHAs do not cause as much irritation. Gluconolactone has some interesting properties: In a 2004 study, Gluconolactone was found to prevent UV damage in mouse skin cells and has not been found to increase sun sensitivity. However, we still recommend wearing SPF daily. This ingredient is is an created by reacting gluconic acid with an alcohol. 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/Glyc