Explore breakdowns of the skincare ingredients featured in our personalised Renude routines. Learn their benefits, functions, and who they're suitable for.
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 pentapeptide, palmitoyl tetrapeptide, palmitoyl tripeptide, palmitoyl tetrapeptide, pentapeptide, sh-oligopeptide, tetrapeptide and copper palmitoyl heptapeptide.
Sage Extract
Sage is a plant extract, naturally high in antioxidants which offer the skin protection from free radical damage. Sage has additional anti-inflammatory benefits which helps to soothe skin which is prone to redness.
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.
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.
Tomato Stem Cells
Stem cells occur naturally within plants to help regenerate cells after stress or injury, and studies show this can encourage similar regenerating mechanisms in human skin. Tomato stem cells provide antioxidant protection to protect against free radicals, as well as acting as a chelating agent to sequester heavy metals which could result in damage, so overall this ingredient has great protective properties.
Red Algae
Algae is an incredibly interesting natural ingredient source. It is essentially an underwater plant, designed to get its food from sunlight, much like any other plants, although from much more challenging conditions. There are many types of algae (kelp, laminaria, microalgae), but in general in all its forms it acts as a powerful antioxidant, protecting from free radical damage, as well as being able to hydrate the skin and deliver naturally-occurring vitamins into the skin.
Ferulic Acid
Ferulic acid is a naturally occurring acid found in plants, such as bran. It is used in skincare for its antioxidant properties, meaning it can neutralise free radicals before they can cause any cellular damage. It has also been shown to stabilise Vitamins C and E when used in combination, resulting in a boost in their efficacy vs being used without the addition of Ferulic acid.
Cocos Nucifera Oil
Coconut oil, also known as cocos nucifera (coconut) oil, is naturally rich in fat-soluble Vitamins A & E, which provide antioxidant benefits, as well as supporting the skin barrier by reducing TEWL and therefore retaining moisture levels within the epidermis.
Feverfew has been used in ancient medicine for centuries to treat everything from headaches, constipation, vertigo, worms, spasms & arthritis. One of the oil-soluble flavonoids, Tanetin, has been shown to modulate inflammatory responses in the body, whilst other flavonoids provide antioxidant protection.
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.
Magnesium Ascorbyl Phosphate
Part of the Vitamin C family of ingredients, Magnesium ascorbyl phosphate is a water-soluble, medium-strength, derivative of Vitamin C. It is designed to have improved stability vs. pure Vitamin C, with a strong conversion to ascorbic acid (the active form of Vitamin C) within the body. It has extremely low sensitisation profile vs other forms which can cause stinging and dryness/irritation. Vitamin C can also be found on ingredients lists as ascorbic acid, ascorbyl glucoside, ascorbyl palmitate, ethyl ascorbic acid, l-ascorbic acid, sodium ascorbyl phosphate and tetrahexyldecyl ascorbate.
Sodium PCA
Sodium PCA is in a class of ingredients that can be found on ingredients lists as natural moisturising factors, sodium lactate or trehalose.
Meadowfoam seed oil is a luxurious and lightweight oil derived from the seeds of the meadowfoam plant (Limnanthes alba). In skincare, it is used for its excellent moisturizing, nourishing, and skin-protecting properties.
Sacred Lotus Flower Extract
This natural plant extract has been shown to have multi-functional benefits, targeting both pigmentation and wrinkles. Studies have shown the extract to be effective at inhibiting tyrosinase, an enzyme involved in producing the pigment melanin in the skin, helping to reduce the appearance of dark spots. It has also been shown to help firm the skin, by slowing the rate at which elastin, an important protein for skin firmness, is degraded.
Argania Spinosa (Argan) Kernel Oil
Argan oil is derived from the nut of the Argan tree which grows in Morocco, it is naturally high in Vitamin E and fatty acids, which work to nourish the skin, protect the natural lipid barrier and provide antioxidant protection against free radicals.

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