Peptide Skincare & BeautySkin science and ingredient guides

Ingredient or product comparison

The INKEY List 15% Vitamin C And EGF Serum Versus Advanced Clinicals Vitamin C Anti Aging Serum

The INKEY List 15% Vitamin C And EGF Serum Versus Advanced Clinicals Vitamin C Anti Aging Serum Detailed comparison of The INKEY List 15% Vitamin C And EGF Serum versus Advanced Clinicals Vitamin C Anti Aging Serum. This brightening serum is formulated around

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The INKEY List 15% Vitamin C And EGF Serum Versus Advanced Clinicals Vitamin C Anti Aging Serum Detailed comparison of The INKEY List 15% Vitamin C And EGF Serum versus Advanced Clinicals Vitamin C Anti Aging Serum. This brightening serum is formulated around Ascorbyl Glucoside to brighten dull-looking skin and fade the look of dark spots. This anti-aging serum is formulated around Aminopropyl Ascorbyl Phosphate and Ferulic Acid to soften the look of wrinkles and brighten dull-looking skin. Water Ascorbyl Glucoside Sodium Hydroxide PEG-40 Hydrogenated Castor Oil Phenoxyethanol Benzyl Alcohol Butylene Glycol Xanthan Gum Ethylhexylglycerin Sodium Metabisulfite Dehydroacetic Acid Phytic Acid Oligopeptide-1 Water, Ascorbyl Glucoside, Sodium Hydroxide, PEG-40 Hydrogenated Castor Oil, Phenoxyethanol, Benzyl Alcohol, Butylene Glycol, Xanthan Gum, Ethylhexylglycerin, Sodium Metabisulfite, Dehydroacetic Acid, Phytic Acid, Oligopeptide-1 PEG-12 Dimethicone Aminopropyl Ascorbyl Phosphate Ferulic Acid Lactic Acid Glycolic Acid Glycerin Palmitoyl Tripeptide-1 Palmitoyl Tetrapeptide-7 Aloe Barbadensis Leaf Juice Powder Tocopherol Helianthus Annuus Extract Oryza Sativa Bran Extract Rosmarinus Officinalis Leaf Extract Caprylyl Glycol Hexylene Glycol Tetrasodium Glutamate Diacetate Parfum Vanillin Malonic Acid Carbomer Sodium Lactate Polysorbate 20 Limonene Linalool Citronellol Water, PEG-12 Dimethicone, Aminopropyl Ascorbyl Phosphate, Ferulic Acid, Lactic Acid, Glycolic Acid, Glycerin, Palmitoyl Tripeptide-1, Palmitoyl Tetrapeptide-7, Aloe Barbadensis Leaf Juice Powder, Tocopherol, Helianthus Annuus Extract, Oryza Sativa Bran Extract, Rosmarinus Officinalis Leaf Extract, Butylene Glycol, Xanthan Gum, Phenoxyethanol, Caprylyl Glycol, Hexylene Glycol, Ethylhexylglycerin, Tetrasodium Glutamate Diacetate, Parfum, Sodium Hydroxide, Vanillin, Malonic Acid, Carbomer, Sodium Lactate, Polysorbate 20, Limonene, Linalool, Citronellol 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. 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 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. Sodium Hydroxide is also known as lye or caustic soda. It is used to adjust the pH of products; many ingredients require a specific pH to be effective. In small amounts, sodium hydroxide is considered safe to use. However, large amounts may cause chemical burns due to its high alkaline. Your skin has a natural pH and acid mantle. This acid mantle helps prevent harmful bacteria from breaking through. The acid mantle also helps keep your skin hydrated. "Alkaline" refers to a high pH level. A low pH level would be considered acidic. Water. It's the most common cosmetic ingredient of all. You'll usually see it at the top of ingredient lists, meaning that it makes up the largest par