SkinCeuticals Discoloration Defense Dark Spot Serum Versus Biologique Recherche Sérum Erythros Redness-Reducing Facial Serum

SkinCeuticals Discoloration Defense Dark Spot Serum Versus Biologique Recherche Sérum Erythros Redness-Reducing Facial Serum Detailed comparison of SkinCeuticals Discoloration Defense Dark Spot Serum versus Biologique Recherche Sérum Erythros Redness-Reducing Facial Serum. This brightening serum is formulated around Niacinamide and Tranexamic Acid to fade the look of dark spots and brighten dull-looking skin. This calming serum is formulated around Niacinamide and Camellia Sinensis Leaf Extract to calm redness and strengthen the skin barrier. Water Butylene Glycol Niacinamide Hydroxyethylpiperazine Ethane Sulfonic Acid Glycerin Tranexamic Acid Propylene Glycol Hydroxyethyl Urea Kojic Acid Caprylyl Glycol Allantoin Chlorphenesin Xanthan Gum Disodium EDTA Water, Butylene Glycol, Niacinamide, Hydroxyethylpiperazine Ethane Sulfonic Acid, Glycerin, Tranexamic Acid, Propylene Glycol, Hydroxyethyl Urea, Kojic Acid, Caprylyl Glycol, Allantoin, Chlorphenesin, Xanthan Gum, Disodium EDTA 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 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. Niacinamide is a multitasking form of vitamin B3 that strengthens the skin barrier, reduces pores and dark spots, regulates oil, and improves signs of aging. And the best part? It's gentle and well-tolerated by most skin types, including sensitive and reactive skin. You might have heard of "niacin flush", or the reddening of skin that causes itchiness. Niacinamide has not been found to cause this. In very rare cases, some individuals may not be able to tolerate niacinamide at all or experience an allergic reaction to it. If you are experiencing flaking, irritation, and dryness with this ingredient, be sure to double check all your products as this ingredient can be found in all categories of skincare. When incorporating niacinamide into your routine, look out for concentration amounts. Typically, 5% niacinamide provides benefits such as fading dark spots. However, if you have sensitive skin, it is better to begin with a smaller concentration. When you apply niacinamide to your skin, your body converts it into nicotinamide adenine dinucleotide (NAD). NAD is an essential coenzyme that is already found in your cells as "fuel" and powers countless biological processes. In your skin, NAD helps repair cell damage, produce new healthy cells, support collagen production, strengthen the skin barrier, and fight environmental stressors (like UV and pollution). Our natural NAD levels start to decline with age, leading to slower skin repair, visible aging, and a weaker skin barrier. By providing your skin niacinamide, you're recharging your skin's NAD levels. This lead