Allies of Skin 35% Vitamin C+ Perfecting Serum Versus Is Clinical Pro-Heal Serum Advance

Allies of Skin 35% Vitamin C+ Perfecting Serum Versus Is Clinical Pro-Heal Serum Advance Detailed comparison of Allies of Skin 35% Vitamin C+ Perfecting Serum versus Is Clinical Pro-Heal Serum Advance. This brightening serum is formulated around 3-O-Ethyl Ascorbic Acid and Tetrahexyldecyl Ascorbate to brighten dull-looking skin and fade the look of dark spots. This brightening serum is formulated around Ascorbic Acid and Retinol to fade the look of dark spots and brighten dull-looking skin. No concerns Ethoxydiglycol 3-O-Ethyl Ascorbic Acid Tetrahexyldecyl Ascorbate Dimethyl Isosorbide Isodecyl Neopentanoate Glutathione Superoxide Dismutase Ethylhexylglycerin Caprylyl Glycol Phenoxyethanol Ethoxydiglycol, 3-O-Ethyl Ascorbic Acid, Tetrahexyldecyl Ascorbate, Dimethyl Isosorbide, Isodecyl Neopentanoate, Glutathione, Superoxide Dismutase, Ethylhexylglycerin, Caprylyl Glycol, Phenoxyethanol Water Ascorbic Acid Laureth-4 Alcohol Denat. Pentylene Glycol Propylene Glycol Triethanolamine Tocopherol Glycerin Bioflavonoids Retinol Olea Europaea Leaf Extract Zinc Sulfate Polyporus Umbellatus Extract Arbutin Polysorbate 20 Water, Ascorbic Acid, Laureth-4, Alcohol Denat., Pentylene Glycol, Propylene Glycol, Triethanolamine, Tocopherol, Glycerin, Bioflavonoids, Retinol, Olea Europaea Leaf Extract, Zinc Sulfate, Polyporus Umbellatus Extract, Arbutin, Polysorbate 20, Phenoxyethanol Be the first to review These ingredients are found in both products. Ingredients higher up in an ingredient list are typically present in a larger amount. 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.