Explore breakdowns of the skincare ingredients featured in our personalised Renude routines. Learn their benefits, functions, and who they're suitable for.
Polyhydroxy acids (PHAs) work by gently dissolving the keratin that binds our outermost layer of skin cells, encouraging the natural exfoliation process of the skin, leading to smoother, clearer skin. This process also encourages new skin cell generation in the basal layer of the epidermis and with repeated use this can have an overall anti-ageing effect on the skin. PHAs are much larger in molecular weight vs AHAs so they cannot penetrate the skin as fast or as far, which therefore makes more gentle & suitable for more sensitive skin types, including those with rosacea-prone skin. Gluconolactone is also especially good for drier skin types as it also has natural humectant qualities, meaning it draws water towards it, hydrating the skin from within. Polyhydroxy acids (PHAs) are a class of ingredients also known by gluconolactone, lactobionic acid, lactobionic acid (pha) and maltobionic acid.
Malus Domestica Fruit Cell Culture Extract
Apple stem cells, also known as malus domestica fruit cell culture extract, occur naturally within plants to help regenerate cells after stress or injury, and studies show this can encourage similar regenerating mechanisms in human skin. Apple stem cells have been shown to increase synthesis of collagen & elastin to achieve visible anti-ageing results in the skin.
Arginine/Lysine Polypeptide
Arginine/lysine polypeptide is a skin care ingredient that slows down aging processes in the skin and boosts regeneration. It is in a class of ingredients also found on ingredients lists as acetyl hexapeptide, acetyl tetrapeptide, acetylarginyltryptophyl diphenylglycine, 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 pentapeptide, palmitoyl tetrapeptide, palmitoyl tripeptide, palmitoyl tetrapeptide, pentapeptide, sh-oligopeptide, tetrapeptide and copper palmitoyl heptapeptide.
Vitamin E is a fat-soluble Vitamin contained in many plant oils, or can also be produced synthetically. Vitamin E is found naturally in our own skin, and its main benefit is to offer powerful antioxidant protection against pollution and free radical damage. It also helps to support our skin’s natural lipid barrier, which in turn improves the hydration levels within the epidermis, as water loss through the skin is minimised. Vitamin E is a family of ingredients also known as alpha tocopherol, tocopherol acetate, tocopheryl (vitamin e) acetate, tocopheryl glucoside or tocopheryl linoleate/oleate.
They are a substance produced by the body, made up of minerals, lactate, urea, amino acids & humectants, which coats the surface skin cells to keep them moisturised. NMF increases the skin’s ability to retain moisture, which results in more hydrated, plump, smoother skin. Natural moisturising factor (NMF) are a class of ingredients that can also be known by sodium lactate, sodium pca and trehalose.
Ascorbyl Glucoside
Part of the Vitamin C family of ingredients, Ascorbyl Glucoside is a water-soluble derivative of Vitamin C. This derivative was created to provide improved stability and skin penetration vs. ascorbic acid alone. It is still unclear how well ascorbyl glucoside is converted into ascorbic acid (the active form of Vitamin C) within the body, but some of it will be lost during this conversion, making this less potent, and therefore requiring higher levels in the formulation in order to achieve great results. Vitamin C can also be found on ingredients lists as ascorbic acid, ascorbyl palmitate, ethyl ascorbic acid, l-ascorbic acid, magnesium ascorbyl phosphate, sodium ascorbyl phosphate and tetrahexyldecyl ascorbate.
Glycolic acid is an alpha hydroxy acid (AHA), derived from sugar cane. AHAs work by dissolving the keratin binding the outermost layer of skin cells, speeding up the skin’s natural exfoliation process. This leads to smoother, brighter, clearer skin, whilst reducing skin discolouration & fine lines/wrinkles with continued use. Glycolic acid has the smallest molecular weight of all the AHAs, meaning it can penetrate the skin quickest, producing the fastest results, but also most likely to cause skin sensitivity, so it is best for those with fairly tolerant skin types.
Algae Exopolysaccharides
Exopolysaccharides (EPS) are phytochemicals produced by Algae to protect from external stressors: UV radiation, oxidation (from free radicals) and temperature, so these provide skin-protecting benefits in skincare. Being a polysaccharide, this also offers humectant qualities, meaning it can draw water to it, plumping & hydrating the area it is applied to. It is in the class of Algae Extract which also include ahnfeltia concinna extract, alaria esculenta extract, algae extract, algin, alteromonas ferment extract, ascophyllum nodosum extract, asparagopsis armata extract, chlorella protothecoides, chlorella vulgaris extract, dunaliella salina (green algae) extract, hydrolyzed f-fucoidan, laminaria ochroleuca (kelp) extract, macrocystis pyrifera (kelp) extract, and marine extract.
Carnitine is a naturally occurring amino acid derivative found in the body. In skincare, L-Carnitine is used for its potential skin-soothing, antioxidant, and revitalizing properties.
Copper Tripeptide
Copper peptides are a family of ingredients also known as copper tripeptide growth factor, tripeptide and copper peptide. They are used in skincare as an anti-ageing ingredient. As with most peptides, it works by activating a receptor in the skin to perform a certain function, e.g. produce more collagen. Studies have shown copper peptide to have a positive impact on skin density, firmness and depth of fine lines and wrinkles.
Acetyl Tetrapeptide
Acetyl tetrapeptide is a string of peptides used in skincare products to reduce the appearance of wrinkles brought on by repeated facial expressions. 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, myristol pentapeptide, 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.
Yerba Mate Extract
Yerba Mate Extract is derived from the leaves of the Ilex paraguariensis plant, native to South America. In skincare, it is used for its potential antioxidant, anti-inflammatory, and skin-soothing properties. It contains various natural compounds, including polyphenols, xanthines (such as caffeine), and vitamins, which contribute to its skincare benefits.
Octadecenedioic Acid
Dioic acid is a naturally-occurring acid found in plant and animal fats/oils. It is used in skincare for its ability to regulate sebum production in the skin, as well as its antibacterial action against acne-causing C. Acnes bacteria. It has also been shown to visibly reduce hyperpigmentation, with results being comparable to that of hydroquinone (the gold standard prescription for treating hyperpigmentation).
Zinc Gluconate
Zinc gluconate is known to have antibacterial effects, and is used in skincare as a preservative to protect the user from harmful bacteria exposure, as well as potential imparting some anti-blemish effects via its antibacterial activity. Zinc is a family of ingredients that can also be found on ingredients lists as zinc pca, zinc sulfate and zinc sulphate.
Centella Asiatica
Centella asiatica promotes wound healing and skin repair, helping to accelerate the recovery process. It exhibits anti-inflammatory effects, reducing redness, irritation, and inflammation and provides soothing and calming benefits, making it beneficial for sensitive or compromised skin.

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