Peptide Skincare & BeautySkin science and ingredient guides

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Biossance Squalane + Phyto-Retinol Serum Versus Paula's Choice Phytoestrogen Elasticity Renewal Serum

Biossance Squalane + Phyto-Retinol Serum Versus Paula's Choice Phytoestrogen Elasticity Renewal Serum Detailed comparison of Biossance Squalane + Phyto-Retinol Serum versus Paula's Choice Phytoestrogen Elasticity Renewal Serum. This anti-aging serum is formula

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Biossance Squalane + Phyto-Retinol Serum Versus Paula's Choice Phytoestrogen Elasticity Renewal Serum Detailed comparison of Biossance Squalane + Phyto-Retinol Serum versus Paula's Choice Phytoestrogen Elasticity Renewal Serum. This anti-aging serum is formulated around Squalane and Niacinamide to soften the look of wrinkles and strengthen the skin barrier. This anti-aging serum is formulated around Resveratrol to soften the look of wrinkles. 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 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 Cyclodextrin Glycerin Coco-Caprylate Saccharide Isomerate Propanediol Hydrogenated Polydecene Glycine Soja Seed Extract Equol Resveratrol Xanthan Gum Cetyl Alcohol Tocopherol Daidzein Genistein Linum Usitatissimum Seed Oil Helianthus Annuus Seed Oil Phospholipids Polyglyceryl-10 Stearate Glycine Soja Oil Engelhardtia Chrysolepis Leaf Extract Sodium Phytate Sodium Citrate Water, Cyclodextrin, Glycerin, Coco-Caprylate, Squalane, Saccharide Isomerate, Propanediol, Sodium Acrylates Copolymer, Hydrogenated Polydecene, Glycine Soja Seed Extract, Equol, Resveratrol, Xanthan Gum, Cetyl Alcohol, Tocopherol, Daidzein, Genistein, Linum Usitatissimum Seed Oil, Helianthus Annuus Seed Oil, Phospholipids, Polyglyceryl-10 Stearate, Citric Acid, Ethylhexylglycerin, Glycine Soja Oil, Engelhardtia Chrysolepis Leaf Extract, Sodium Phytate, Sodium Citrate, 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. 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. Ethylhexylglycerin is created from glycerin. It is a multitasker ingredient that: The CIR Expert Panel found minimal skin absorption or sensitization of any kind in a safety assessment. Though this ingredient is considered well-tolerated, a small number of cases of allergic dermatitis have been published since 2002. Just be sure to patch test if you are unsure. Industry-reported use ranges from 8% in rinse-off products and 2% in leave-on formulations. 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 fe