The Ordinary Niacinamide 10% + Zinc 1% Versus Pixi Beauty Petra Vitamin-C Serum

The Ordinary Niacinamide 10% + Zinc 1% Versus Pixi Beauty Petra Vitamin-C Serum Detailed comparison of The Ordinary Niacinamide 10% + Zinc 1% versus Pixi Beauty Petra Vitamin-C Serum. This oil-control serum is formulated around Niacinamide and Zinc PCA to balance excess oil and refine the look of pores. This brightening serum is formulated around Ascorbic Acid and Ferulic Acid to brighten dull-looking skin and soften the look of wrinkles. No concerns Water Niacinamide 10% Pentylene Glycol Zinc PCA 1% Dimethyl Isosorbide Tamarindus Indica Seed Gum Xanthan Gum Isoceteth-20 Ethoxydiglycol Phenoxyethanol Chlorphenesin Water, Niacinamide 10%, Pentylene Glycol, Zinc PCA 1%, Dimethyl Isosorbide, Tamarindus Indica Seed Gum, Xanthan Gum, Isoceteth-20, Ethoxydiglycol, Phenoxyethanol, Chlorphenesin Ascorbic Acid Propanediol Glycerin Citrus Grandis Sodium Hydroxide Aloe Barbadensis Leaf Juice Sodium Hyaluronate Citrus Limon Peel Extract Citrus Nobilis Citrus Aurantium Dulcis Fruit Extract Ferulic Acid Tocopherol Caffeine Microcitrus Australis Fruit Extract Microcitrus Australasica Fruit Extract Beta-Carotene Lecithin Citrus Glauca Fruit Extract Panthenol Daucus Carota Sativa Root Extract Citrus Aurantium Dulcis Peel Extract Citrus Grandis Fruit Extract Citrus Junos Peel Extract Mentha Piperita Extract Melaleuca Alternifolia Flower/Leaf/Stem Extract Retinol Leuconostoc/Radish Root Ferment Filtrate Punica Granatum Extract Hydroxypropyl Cyclodextrin Polysorbate 20 Phospholipids Glycine Soja Oil Caprylic/Capric Triglyceride Sodium Acrylates Copolymer Sodium Benzoate Potassium Sorbate Sodium Sorbate Citric Acid Ethylhexylglycerin Water, Ascorbic Acid, Ethoxydiglycol, Propanediol, Glycerin, Citrus Grandis, Sodium Hydroxide, Aloe Barbadensis Leaf Juice, Sodium Hyaluronate, Citrus Limon Peel Extract, Citrus Nobilis, Citrus Aurantium Dulcis Fruit Extract, Ferulic Acid, Tocopherol, Caffeine, Microcitrus Australis Fruit Extract, Microcitrus Australasica Fruit Extract, Beta-Carotene, Lecithin, Citrus Glauca Fruit Extract, Panthenol, Daucus Carota Sativa Root Extract, Citrus Aurantium Dulcis Peel Extract, Citrus Grandis Fruit Extract, Citrus Junos Peel Extract, Mentha Piperita Extract, Melaleuca Alternifolia Flower/Leaf/Stem Extract, Retinol, Xanthan Gum, Leuconostoc/Radish Root Ferment Filtrate, Punica Granatum Extract, Phenoxyethanol, Hydroxypropyl Cyclodextrin, Polysorbate 20, Phospholipids, Glycine Soja Oil, Caprylic/Capric Triglyceride, Sodium Acrylates Copolymer, Sodium Benzoate, Potassium Sorbate, Sodium Sorbate, Citric Acid, Ethylhexylglycerin 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. Ethoxydiglycol (aka Diethylene Glycol Monoethyl Ether) is one of the cosmetic world's quiet problem solvers. In a formula, it is a solvent that dissolves tricky ingredients that don't want to mix in and helps spread ingredients evenly across your skin without leaving a greasy or sticky feeling This makes it great for hard-to-dissolve actives like vitamin C, benzoyl peroxide, and self-tanner DHA. It also has mild humectant and penetration enhancer abilities so it can help some actives absorb a little deeper. The penetration boost is backed by lab research: studies using human skin samples found it improved how well an active dissolves into the upper layer of skin rather than tearing down your skin barrier. Reviews of its mechanism also describe it interacting gently with the lipids and water in your outermost layer of skin. Just know this penetration-enhancing effect is not universal. It helps a lot in some formulas and did very little in others (so the benefit really depends on the specific product). Safety-wise, the evidence is reassuring. The Cosmetic Ingredient Review Expert Panel reviewed it and concluded it's safe for use in cosmetics and recognized it as non-irritating, non-sensitizing, and non-comedogenic in skincare. Typical leave-on skincare usage lands around 1-10%. The EU has sets caps of 2.6% in non-spray products, 10% in rinse-offs, 7% in oxidative hair dye, and 5% in non-oxidative hair dye. 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. Water. It's the most common cosmetic ingredient of all. You'll usually see