itk Nightly Clarifying Serum Versus Biologique Recherche Le Grand Sérum Beautifying Elixir for the Face

itk Nightly Clarifying Serum Versus Biologique Recherche Le Grand Sérum Beautifying Elixir for the Face Detailed comparison of itk Nightly Clarifying Serum versus Biologique Recherche Le Grand Sérum Beautifying Elixir for the Face. This oil-control serum is formulated around Potassium Azeloyl Diglycinate and Niacinamide to balance excess oil and refine skin texture. This anti-aging serum is formulated around Cucumis Sativus Fruit Extract and Niacinamide to soften the look of wrinkles and brighten dull-looking skin. Water Glycerin Pentylene Glycol Caprylic/Capric Triglyceride Simmondsia Chinensis Seed Oil Potassium Azeloyl Diglycinate Polyacrylate Crosspolymer-6 Niacinamide Biosaccharide Gum-1 Bakuchiol Butylene Glycol Propylene Glycol Panthenol Tocopheryl Acetate Disodium EDTA Sodium Lactate Urea Tea-Lactate Sorbitol Serine Lactic Acid Allantoin Carnosine Carbomer Phenoxyethanol Sodium Chloride Polysorbate 20 Sodium Hyaluronate Sodium Benzoate Palmitoyl Tripeptide-1 Palmitoyl Tetrapeptide-7 Water, Glycerin, Pentylene Glycol, Caprylic/Capric Triglyceride, Simmondsia Chinensis Seed Oil, Potassium Azeloyl Diglycinate, Polyacrylate Crosspolymer-6, Niacinamide, Biosaccharide Gum-1, Bakuchiol, Butylene Glycol, Propylene Glycol, Panthenol, Tocopheryl Acetate, Disodium EDTA, Sodium Lactate, Urea, Tea-Lactate, Sorbitol, Serine, Lactic Acid, Allantoin, Carnosine, Carbomer, Phenoxyethanol, Sodium Chloride, Polysorbate 20, Sodium Hyaluronate, Sodium Benzoate, Palmitoyl Tripeptide-1, Palmitoyl Tetrapeptide-7 Alcohol Denat. Cucumis Sativus Fruit Extract Lactobacillus/Wasabia Japonica Root Ferment Extract Sodium Gluconate Empetrum Nigrum Fruit Juice Hydrolyzed Silk Magnesium Chloride Vinegar Alcohol Yeast Extract Citric Acid Mimosa Tenuiflora Bark Extract Sodium Salicylate Myrtus Communis Extract Acacia Senegal Gum Honey Extract Nasturtium Officinale Extract Pueraria Lobata Root Extract Xanthan Gum Allium Cepa Bulb Extract Pvp Biosaccharide Gum-2 Commiphora Myrrha Resin Extract Royal Jelly Extract Tannic Acid Hamamelis Virginiana Bark/Leaf/Twig Extract Vaccinium Macrocarpon Fruit Extract Carum Carvi Fruit Oil Jasminum Grandiflorum Flower Extract Potassium Sorbate Caprylyl Glycol Rhizobian Gum Hypericum Perforatum Flower/Leaf/Stem Extract Sambucus Nigra Flower Extract Terminalia Catappa Leaf Extract Pyridoxine Hcl Thiamine Hcl Mentha Piperita Oil Chlorphenesin Sorbic Acid Acetyl Hexapeptide-8 Farnesol Limonene Linalool Water, Propylene Glycol, Glycerin, Alcohol Denat., Cucumis Sativus Fruit Extract, Lactobacillus/Wasabia Japonica Root Ferment Extract, Sodium Gluconate, Sodium Lactate, Empetrum Nigrum Fruit Juice, Butylene Glycol, Hydrolyzed Silk, Magnesium Chloride, Niacinamide, Vinegar, Tea-Lactate, Alcohol, Yeast Extract, Citric Acid, Lactic Acid, Mimosa Tenuiflora Bark Extract, Sodium Salicylate, Phenoxyethanol, Myrtus Communis Extract, Sorbitol, Sodium Benzoate, Acacia Senegal Gum, Honey Extract, Nasturtium Officinale Extract, Pueraria Lobata Root Extract, Xanthan Gum, Allium Cepa Bulb Extract, Pvp, Pentylene Glycol, Biosaccharide Gum-2, Commiphora Myrrha Resin Extract, Royal Jelly Extract, Tannic Acid, Hamamelis Virginiana Bark/Leaf/Twig Extract, Vaccinium Macrocarpon Fruit Extract, Allantoin, Serine, Urea, Carum Carvi Fruit Oil, Jasminum Grandiflorum Flower Extract, Potassium Sorbate, Caprylyl Glycol, Rhizobian Gum, Sodium Hyaluronate, Hypericum Perforatum Flower/Leaf/Stem Extract, Sambucus Nigra Flower Extract, Terminalia Catappa Leaf Extract, Pyridoxine Hcl, Thiami 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. 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. Lactic Acid is another well-loved alpha hydroxy acid (AHA). It is gentler than glycolic acid but still highly effective. Its main role is to exfoliate the surface of the skin by loosening the “glue” that holds dead skin cells together. Shedding those old cells leads to smoother, softer, and more even-toned skin. Because lactic acid molecules are larger than glycolic acid, they don’t penetrate as deeply. This means they