Explore breakdowns of the skincare ingredients featured in our personalised Renude routines. Learn their benefits, functions, and who they're suitable for.
Ethyl Ascorbic Acid
Part of the Vitamin C family of ingredients, L-ascorbic acid is designed to improve its stability and skin penetration abilities, to achieve optimum skin benefits. Once absorbed into the skin, the ethyl group is removed, and l-ascorbic acid is returned to its active form, where it can best support the skin to achieve visible brightening & anti-ageing results. Vitamin C can also be found on ingredients lists as ascorbic acid, ascorbyl glucoside, ascorbyl palmitate, l-ascorbic acid, magnesium ascorbyl phosphate, sodium ascorbyl phosphate and tetrahexyldecyl ascorbate.
Palmitoyl tetrapeptide is a synthetic peptide composed of the amino acids glutamine, glycine, arginine, and proline. Along with the four amino acids, this peptide also contains the fatty acid palmitic acid to enhance stability and penetration into the skin.
Saccharomyces Cerevisiae (Yeast) Extract
Yeast extract (e.g. Saccharomyces Cerevisiae) is used in skincare for its benefits as a moisturising and soothing agent. It has strong antioxidant properties to protect against free radical damage and its fermented nature means it also functions as a prebiotic on the skin (meaning it acts as a food source for beneficial skin bacteria to thrive). Prebiotics are in a class of ingredients that can be found on ingredients lists as alpha-glucan oligosaccharide, fructooligosaccharides, lactobacillus extract filtrate and rhamnose.
Retinyl Palmitate
Retinyl Palmitate is a part of the vitamin A family of ingredients. It is broken down in the body to retinol, and then into retinaldehyde, then again into retinoic acid, the active form recognised by the body to trigger its skin benefits. It is part of a family of ingredients also found on ingredients lists as encapsulated retinaldehyde, hydroxypinacolone retinoate, retinaldehyde, retinol, retinyl propionate and retinyl retinoate (8x more powerful than retinol)
Caprooyl Phytosphingosine
Caprooyl Phytosphingosine is a mixture of fatty acids Caproic acid and Phytosphingosine. It acts as a precursor for ceramide synthesis, meaning it encourages the skin to produce ceramides naturally. The function of ceramides is to hold the skin cells together by creating a barrier against water-loss from the inside-out, and external aggressors from the outside-in. They make up almost 50% of our skins composition, but they can be depleted by UV, free radicals & pollution, and their production also naturally slows with age. This leads to an impaired skin barrier, which results in dry, rough skin with more visible wrinkling and redness. Encouraging the skin’s natural production of ceramides leads to an improved skin barrier, resulting in smoother, more hydrated, younger-looking skin. Caprooyl phytosphingosine is in the class of essential lipids, it can be found on ingredient lists as caprooyl sphingosine, cholesterol, glycolipids, glycoproteins, glycosphingolipids, lecithin, linoleic acid, linolenic acid, phospholipids and phytosphingosine.
Ethylhexyl Salicylate
Octisalate/Octyl Salicylate is a synthetic UV filter used in sun care products to provide protection against UVB wavelengths of 290-320 nm, with a peak absorbance at 306 nm. Other ingredients in the class of synthetic UV filters include bis-ethylhexyloxyphenol methoxyphenyl triazine, butyl methoxydibenzoylmethane, ethylhexyl salicylate, ethylhexyl triazone, homosalate, octinoxate, octocrylene and triazine diethyl butamidotriazone.
Vitamin K1 is a naturally occurring vitamin found in certain plants and algae.
Lecithin
Lecithin can be classed as a phospholipid, which occurs naturally in eggs, soybean, sunflower oil and corn. It contains a high concentration of fatty acids, which support the skin’s natural barrier by creating a lipid film to prevent transepidermal water loss (TEWL). Lecithin also has lipophilic & hydrophilic properties, meaning it can function as an emulsifier and skin penetration-enhancer, helping to deliver actives deeper into the skin. Lecithin is in the class of essential lipids, and can be found on ingredient lists as caprooyl phytosphingosine, caprooyl sphingosine, cholesterol, glycolipids, glycoproteins, glycosphingolipids, linoleic acid, linolenic acid, phospholipids and phytosphingosine.
Chlorella Vulgaris Extract
In skin care products, algae extract has several functions, including as a thickening agent, water-binding agent, and antioxidant. Chlorella vulgaris extract has been shown to stimulate collagen synthesis. It is in the class of Algae Extract which also include ahnfeltia concinna extract, alaria esculenta extract, algae exopolysaccharides, algin, alteromonas ferment extract, alteromonas ferment extract, ascophyllum nodosum extract, asparagopsis armata extract, chlorella protothecoides, dunaliella salina (green algae) extract, hydrolyzed f-fucoidan, laminaria ochroleuca (kelp) extract, macrocystis pyrifera (kelp) extract, and marine extract.
Retinyl Retinoate (8X More Powerful Than Retinol)
Retinyl retinoate is a part of the vitamin A family of ingredients, which combines retinol with retinoic acid. Research shows that this makes it more stable in the delivery (a common problem with either active alone), as well as more potent and less irritating. It is broken down by the body in two stages - first into retinol and retinoic acid, then the retinol is broken down again into retinoic acid, so essentially packing double the punch. Studies carried out comparing this to pure retinol showed significantly more effective and faster results, with comparable side effects. It is part of a family of ingredients also found on ingredients lists as encapsulated retinaldehyde, hydroxypinacolone retinoate, retinaldehyde, retinyl palmitate and retinyl propionate.
Myristoyl pentapeptide is an anti-aging peptide that promotes cell regeneration and is used in skincare to treat fine lines and wrinkles. It is in a class of ingredients also found on ingredients lists as acetylarginyltryptophyl diphenylglycine, acetyl tetrapeptide, arginine/lysine polypeptide, azelaoyl bis-dipeptide, copper heptapeptide-14 pantothenate, dipeptide, dipeptide diaminobutyroyl benzylamide diacetate, ferric hexapeptide, heptapeptide-15, palmitate, myristol hexapeptide, myristoyl nonapeptide, myristoyl pentapeptide, oligopeptide, palmitoyl tripeptide, palmitoyl decapeptide, palmitoyl heptapeptide, palmitoyl hexapeptide, palmitoyl nonapeptide, palmitoyl oligopeptide, palmitoyl pentapeptide, palmitoyl tetrapeptide, palmitoyl tripeptide, palmitoyl tetrapeptide, pentapeptide, sh-oligopeptide, tetrapeptide and copper palmitoyl heptapeptide.
Guarana extract is derived from the seeds of the guarana plant (Paullinia cupana), which is native to the Amazon rainforest. It is used in skincare for its potential energizing, antioxidant, and skin-conditioning properties.
Glycosphingolipids are naturally occurring in the skin and are involved in the skin’s natural ceramide-production process. It in the class of essential lipids, and can be found on ingredient lists as caprooyl phytosphingosine, caprooyl sphingosine, cholesterol, glycolipids, glycoproteins, lecithin, linoleic acid, linolenic acid, phospholipids and phytosphingosine.
Luffa Cylindrica Extract, also known as sponge gourd or loofah, is derived from the fruit of the Luffa cylindrica plant. In skincare, this extract is used for its potential exfoliating, cleansing, and skin-smoothing properties.
Caprooyl Sphingosine
Caprooyl Sphingosine is a mixture of fatty acids Caproic acid and Sphingosine. It acts as a precursor for ceramide synthesis, meaning it encourages the skin to produce ceramides naturally. The function of ceramides is to hold the skin cells together by creating a barrier against water-loss from the inside-out, and external aggressors from the outside-in. They make up almost 50% of our skins composition, but they can be depleted by UV, free radicals & pollution, and their production also naturally slows with age. This leads to an impaired skin barrier, which results in dry, rough skin with more visible wrinkling and redness. Encouraging the skin’s natural production of ceramides leads to an improved skin barrier, resulting in smoother, more hydrated, younger-looking skin. Caprooyl sphingosine is in the class of essential lipids, it can be found on ingredient lists as caprooyl phytosphingosine, cholesterol, glycolipids, glycoproteins, glycosphingolipids, lecithin, linoleic acid, linolenic acid, phospholipids and phytosphingosine.

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