Vichy Mineral 89 Prebiotic Concentrate Versus Biossance Squalane + Phyto-Retinol Serum

Vichy Mineral 89 Prebiotic Concentrate Versus Biossance Squalane + Phyto-Retinol Serum Detailed comparison of Vichy Mineral 89 Prebiotic Concentrate versus Biossance Squalane + Phyto-Retinol Serum. This barrier-repair serum is formulated around Niacinamide and Vitreoscilla Ferment to strengthen the skin barrier and calm redness. This anti-aging serum is formulated around Squalane and Niacinamide to soften the look of wrinkles and strengthen the skin barrier. Water Niacinamide Propanediol PEG-6 PEG/PPG/Polybutylene Glycol-8/5/3 Glycerin Glycerin Methyl Gluceth-20 PEG-60 Hydrogenated Castor Oil Carbomer Sodium Hyaluronate Tocopherol Hydroxyacetophenone Citric Acid Vitreoscilla Ferment Caprylyl Glycol Biosaccharide Gum-1 Maltodextrin Butylene Glycol Water, Niacinamide, Propanediol, PEG-6, PEG/PPG/Polybutylene Glycol-8/5/3 Glycerin, Glycerin, Methyl Gluceth-20, PEG-60 Hydrogenated Castor Oil, Carbomer, Sodium Hyaluronate, Tocopherol, Hydroxyacetophenone, Citric Acid, Vitreoscilla Ferment, Caprylyl Glycol, Biosaccharide Gum-1, Maltodextrin, Butylene Glycol Squalane Sodium Acrylates Copolymer Bakuchiol Rosa Canina Fruit Oil Citrus Aurantium Amara Peel Oil Yeast Extract Soy Amino Acids Lecithin Hexylene Glycol Ethylhexylglycerin Phenoxyethanol Tetrasodium Glutamate Diacetate Linalool Geraniol Limonene Water, Squalane, Niacinamide, Sodium Acrylates Copolymer, Bakuchiol, Sodium Hyaluronate, Rosa Canina Fruit Oil, Citrus Aurantium Amara Peel Oil, Biosaccharide Gum-1, Yeast Extract, Soy Amino Acids, Lecithin, Hexylene Glycol, Ethylhexylglycerin, Caprylyl Glycol, Phenoxyethanol, Tetrasodium Glutamate Diacetate, Citric Acid, Linalool, Geraniol, Limonene These ingredients are found in both products. Ingredients higher up in an ingredient list are typically present in a larger amount. Biosaccharide Gum-1 is a sugar created by fermenting sorbitol (which usually comes from potato starch!). It is known for its soothing and moisturizing properties. Manufacturer tests show this ingredient helped reduce irritation from lactic acid by almost half and kept skin hydrated long-term as a humectant Beyond hydration, Biosaccharide Gum-1 gives formulas a silky, non-sticky feel. This ingredient is gentle, versatile, and suitable for all skin types. Fun fact: Similar sugars can be found naturally in fruits like apples and pears. Caprylyl Glycol is a humectant, skin conditioner, emollient, and preservative booster derived from either caprylic acid or synthetically created. Typical use levels vary from 0.3-1% as a preservative booster and go up to 2% to condition skin. Because it is not a free-fatty acid, this ingredient is fungal acne safe (there's nothing for Malassezia to feed on). 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. 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 experie