Biossance Squalane + Vitamin C Rose Oil Versus Sunday Riley C.E.O. 15% Vitamin C Brightening Serum

Biossance Squalane + Vitamin C Rose Oil Versus Sunday Riley C.E.O. 15% Vitamin C Brightening Serum Detailed comparison of Biossance Squalane + Vitamin C Rose Oil versus Sunday Riley C.E.O. 15% Vitamin C Brightening Serum. This brightening oil is formulated around Squalane and Tetrahexyldecyl Ascorbate to brighten dull-looking skin and hydrate skin. This brightening serum is formulated around Tetrahexyldecyl Ascorbate and Glycolic Acid to brighten dull-looking skin and refine skin texture. Squalane Tetrahexyldecyl Ascorbate Caprylic/Capric Triglyceride Pistacia Lentiscus Gum Rosa Damascena Flower Extract Geraniol Citronellol Squalane, Tetrahexyldecyl Ascorbate, Caprylic/Capric Triglyceride, Pistacia Lentiscus Gum, Rosa Damascena Flower Extract, Geraniol, Citronellol Water Polyglyceryl-6 Distearate PEG-8 Beeswax PPG-12/Smdi Copolymer Glycine Soja Sterols Sodium Phytate Tocopherol Acetamidoethoxyethanol Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer Sodium Acrylate/Sodium Acryloyldimethyl Taurate Copolymer Jojoba Esters Glycolic Acid Caprylyl Glycol Cetyl Alcohol Polyglyceryl-3 Beeswax Chlorphenesin Glycerin Polysorbate 60 Sorbitan Isostearate Saccharide Isomerate Citrus Aurantium Dulcis Peel Oil Citrus Tangerina Peel Oil Linalool Limonene Phenoxyethanol Water, Tetrahexyldecyl Ascorbate, Squalane, Polyglyceryl-6 Distearate, PEG-8 Beeswax, PPG-12/Smdi Copolymer, Glycine Soja Sterols, Sodium Phytate, Tocopherol, Acetamidoethoxyethanol, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Sodium Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Jojoba Esters, Glycolic Acid, Caprylyl Glycol, Cetyl Alcohol, Polyglyceryl-3 Beeswax, Chlorphenesin, Glycerin, Polysorbate 60, Sorbitan Isostearate, Saccharide Isomerate, Citrus Aurantium Dulcis Peel Oil, Citrus Tangerina Peel Oil, Linalool, Limonene, Phenoxyethanol These ingredients are found in both products. Ingredients higher up in an ingredient list are typically present in a larger amount. Squalane is the hydrogenated and shelf-stable form of squalene (a lipid that naturally occurs in human sebum). It is an emollient and skin conditioning agent that is able to integrate seamlessly into the skin's lipid barrier without clogging pores. This is due to how structurally similar it is to what your skin already produces. Though it is mostly an emollient that helps soften and hydrate skin, it also has some humectant and occlusive action. Humectants help the skin retain moisture while occlusives seal it in, making squalane a triple-threat moisturizer. Research shows it has antioxidant capabilities that help protect against stressors like UV exposure, specifically UVA induced oxidative stress. This study also found that it supports collagen biosynthesis in human dermal fibroblasts. No clinical study has reported significant adverse effects and irritation reactions are very rare from this ingredient (even at 100% concentration). Overall, it's a fantastic ingredient for hydration and is suitable for all skin types. This depends on the source. Squalane can be derived from both plants and animals. Most squalane used in skincare comes from plants. Please note: the source of squalane is only known if disclosed by the brand. We recommend reaching out to the brand if you have any questions about their squalane. Read more about squalene with an "e". Though squalane is often called an oil, it’s technically not one. It is a hydrocarbon, meaning it is only made of carbon and hydrogen. True oils are triglycerides and made of fatty acids and glycerol. The term “oil-free” isn’t regulated so companies can define it however they want. Some exclude all oils, while others just avoid mineral oil or comedogenic oils. Squalane has a comedogenic rating of 1 from the original 1972 study that tested raw ingredients under occlusion on rabbit ears. This system is not standardized or peer-reviewed, and using the raw ingredients is very different from how diluted cosmetic formulations are used on human skin. A comedogenic rating of 1 means it is "unlikely to clog pores" according to the original rating system. The overall formula of a product matters more than the individual ingredients on whether or not it will cause clogged pores. Tetrahexyldecyl Ascorbate (THD) is a stable and oil-soluble form of Vitamin C. THD is special in that it has the ability to travel deeper into skin than traditional ascorbic acid while maintaining the same skin benefits (double win!). Because it’s oil-soluble, THD dives deep into your skin’s fatty layers (think ceramides and cholesterol) to fight off the kind of free radicals that mess with your skin barrier. This makes it a great pair with water-based vitamin C (ascorbic acid) that mainly works on the surface. Even at just 0.1%, THD is already showing great antioxidant activity. When used up to 2%, it helps kee