Explore breakdowns of the skincare ingredients featured in our personalised Renude routines. Learn their benefits, functions, and who they're suitable for.
Threonine
When taken orally, it helps the digestive and intestinal tracts function more smoothly and also helps the absorption of nutrients. As for skincare, it helps to hydrate the skin. Amino acids are a class of ingredients. They can also be found on ingredients lists as acetyl glucosamine,acetyl tyrosinamide, alanine, arginine hcl, arginine pca, histidine, isoleucine, leucine, lysine, proline, serine, taurine and valine and yeast amino acids.
Silk Protein
Silk Protein is a natural protein derived from silkworm cocoons. In skincare, it is used for its potential moisturizing, softening, and conditioning properties.
Lactobacillus Extract Filtrate
Lactobacillus Extract Filtrate is a cell-free extract (CFE) of the lactobacillus microorganism. This means it is no longer a living bacteria (probiotic), but an extract of a once-living bacteria, which functions as a prebiotic. This active has been shown via clinical studies from the manufacturer, Evonik, to encourage the growth of beneficial skin bacteria, as well as support the natural skin barrier function, helping to protect against skin roughness and dryness. Lactobacillus extract filtrate is in a class of prebiotic ingredients and can be found on ingredients lists as alpha-glucan oligosaccharide, fructooligosaccharides, rhamnose and saccharomyces cerevisiae (yeast) extract.
Sodium Ascorbyl Phosphate
Sodium Ascorbyl Phosphate (SAP) is a gentle and water-soluble form of Vitamin C. It is more stable for use in skincare than pure ascorbic acid. Vitamin C can also be found on ingredients lists as ascorbic acid, ascorbyl glucoside, ascorbyl palmitate, ethyl ascorbic acid, l-ascorbic acid, magnesium ascorbyl phosphate and tetrahexyldecyl ascorbate.
Ethylhexyl Methoxycinnamate
Octinoxate/Ethylhexyl Methoxycinnamate is a synthetic UV filter used in sun care products to provide protection against UVB light. Other ingredients in the class of synthetic UV filters include bis-ethylhexyloxyphenol methoxyphenyl triazine, butyl methoxydibenzoylmethane, ethylhexyl salicylate, ethylhexyl triazone, homosalate, octisalate, octocrylene and triazine diethyl butamidotriazone.
Phytosphingosine
Phytosphingosine (PS) is a lipid which naturally occurs in the stratum corneum (the top, visible layer of our epidermis). This acts as a precursor for ceramide synthesis, meaning it encourages the skin to produce ceramides naturally. Studies have also shown PS to offer anti-acne benefits, it is believed by reinforcing the protective barrier, and therefore reducing specific abnormalities in the skin functioning that lead to acne (invading inflammatory bacteria, increased keratinization, increased sebaceous gland activity). It is in the same class of essential lipids that include caprooyl phytosphingosine, caprooyl sphingosine, cholesterol, glycolipids, glycoproteins, glycosphingolipids, lecithin, linoleic acid, linolenic acid, and phospholipids.
Proline
A non-essential amino acid (meaning that our body can produce it) that's also one of the major building blocks of collagen. It is thought to be able to improve wrinkles when combined with other amino acids, glycine and leucine. Amino acids are a class of ingredients. They can also be found on ingredients lists as acetyl glucosamine,acetyl tyrosinamide, alanine, arginine hcl, arginine pca, histidine, isoleucine, leucine, lysine, phenylalanine, serine, taurine, threonine and valine and yeast amino acids.
Tremella Fuciformis
Snow Mushroom Extract, also known as Tremella fuciformis extract, is derived from the snow mushroom, a gelatinous mushroom with hydrating properties. In skincare, it is used for its potential moisturizing, plumping, and skin-soothing benefits.
Many peptides function as anti-ageing ingredients in skincare, due to their ability to fit specific receptors in the body to trigger anti-ageing responses. This includes mechanisms like collagen production, cell regeneration or even blocking muscle contractions to smooth expression lines. Peptides are made up of amino acids, and are unique in shape, with a huge variety available to target specific responses in the body. It is from a class of ingredients also found on ingredients lists as acetyl hexapeptide, acetyl tetrapeptide, acetylarginyltryptophyl diphenylglycine, arginine/lysine polypeptide, azelaoyl bis-dipeptide, copper heptapeptide-14 pantothenate, dipeptide, dipeptide diaminobutyroyl benzylamide diacetate, ferric hexapeptide, heptapeptide-15, palmitate, myristol hexapeptide, myristol pentapeptide, myristoyl nonapeptide, myristoyl pentapeptide, oligopeptide, palmitoyl tripeptide, palmitoyl decapeptide, palmitoyl heptapeptide, palmitoyl hexapeptide, palmitoyl nonapeptide, palmitoyl oligopeptide, palmitoyl tetrapeptide, palmitoyl tripeptide, palmitoyl tetrapeptide, pentapeptide, sh-oligopeptide, tetrapeptide and copper palmitoyl heptapeptide.
Rhamnose
Rhamnose is a naturally occurring sugar found in plant sources such as buckthorn and birch. Studies have shown that its molecular size and structure allows it to penetrate to the area between the base of the epidermis and the top of the dermis, known as the ‘dermo-epidermal junction’. This is important as this is where the fibroblasts are situated, which produce the key skin proteins collagen and elastin, which contribute to overall skin structure & firmness. In vivo studies (on humans) from the manufacturers have shown that applying a product including rhamnose once daily for 8 weeks resulting in an increase in collagen production, and a decrease in overall wrinkle depth. Prebiotics are in a class of ingredients that can be found on ingredients lists as alpha-glucan oligosaccharide, fructooligosaccharides, lactobacillus extract filtrate and saccharomyces cerevisiae (yeast) extract.
Naringenin chalcone is a flavonoid compound derived from citrus fruits, particularly grapefruits. In skincare, it is used for its potential antioxidant, anti-inflammatory, and skin-brightening properties.
Ectoin
Ectoin is an emollient used in skincare to help maintain moisture balance in the skin. New research shows it may also be able to protect against certain environmental aggressors, such as pollutants and UV. This is believed to be down to its antioxidant properties, as well as the ability to protect skin from dehydration from the surrounding environment.
Homosalate
Homosalate is a synthetic UV filter used in sun care products to provide UVB protection against the wavelengths 295-315 nm. Other ingredients in the class of synthetic UV filters include bis-ethylhexyloxyphenol methoxyphenyl triazine, butyl methoxydibenzoylmethane, ethylhexyl salicylate, ethylhexyl triazone, octinoxate, octisalate, octocrylene and triazine diethyl butamidotriazone.
Glycerin is a humectant present in all natural lipids. It works to attract water molecules towards it, plumping & hydrating the applied area, resulting in smooth, soft, hydrated skin. It is one of the most widely used humectants in skincare, due to its high performance and broad availability (making it very cost-effective). Recent research has shown that its ability to penetrate the layers of the skin is superior to that of low molecular weight hyaluronic acid, making it a brilliant choice for overall skin hydration, and suitable for all skin types.
Sulfur
Sulfur used in skincare works to reduce blemishes. It does this by acting as an antibacterial to kill off the bacteria which causes acne, and also works to dry out the area, absorbing any excess sebum. It works best for blackheads and whiteheads, and is typically better for sensitive skin types than some other blemish-fighting ingredients.

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