Explore breakdowns of the skincare ingredients featured in our personalised Renude routines. Learn their benefits, functions, and who they're suitable for.
Aesculus Hippocastanum Seed Extract
Horse Chestnut has powerful antioxidant properties, is able to soothe irritated skin, and has also been shown in some studies to have benefits in strengthening the blood vessels to reduce visible redness.
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. Heptapeptide-15 palmitate is in 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 pentapeptide, palmitoyl tetrapeptide, palmitoyl tripeptide, palmitoyl tetrapeptide, pentapeptide, sh-oligopeptide, tetrapeptide and copper palmitoyl heptapeptide.
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.
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.
Linoleic Acid
Linoleic Acid is an Omega 6 essential fatty acid (EFA), found in many plant oils: corn, safflower & sunflower. Linoleic acid forms the fatty acid based of Ceramides EOH, EOS and EOP, which are essential for the normal functioning of the skin barrier. Applying linoleic acid topically helps to support ceramide functioning within the skin, leading to improved skin hydration and smoothness. Research also shows that sebum in acne-prone skin can be lacking in Omega 6 (with too much Omega 3), so there is evidence to suggest applying this topically can help to balance the sebum composition and in turn reduce acne lesions. Linoleic Acid is in the class of essential lipids, and can be found on ingredient lists as caprooyl phytosphingosine, caprooyl sphingosine, cholesterol, glycolipids, glycoproteins, glycosphingolipids, Lecithin, linolenic acid, phospholipids and phytosphingosine.
Vitamin K1 is a naturally occurring vitamin found in certain plants and algae.
Trehalose is in a class of ingredients that can be found on ingredients lists as natural moisturising factors, sodium lactate or sodium pca.
Valine
It's a branched chain amino acid that is claimed to enhance energy, increase endurance and aid in muscle tissue recovery and repair when taken as a supplement. In skincare, Valine helps to keep the skin hydrated and to protect against external aggressors. 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 and valine and yeast amino acids.
Glycine
Glycine is an amino acid that is found in glycerine and collagen, which are ingredients in many skincare products. Glycine can improve the visible signs of aging, moisture retention, collagen production and regeneration. 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, lysine, phenylalanine, proline, serine, taurine, threonine and valine and yeast amino acids.
Palmitoyl tripeptide-1 is a synthetic fatty acid-linked peptide that can help repair visible skin damage and strengthen skin’s underlying supportive elements. 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 nonapeptide, palmitoyl oligopeptide, palmitoyl pentapeptide, palmitoyl tetrapeptide, pentapeptide, sh-oligopeptide, tetrapeptide and copper palmitoyl heptapeptide.
Glycyrrhiza Glabra (Licorice) Root Extract
It has been shown to prevent and reverse UV-induced skin damage, to provide visible skin-lightening properties to the skin. Its second active component, glycyrrhetinic acid is used in skincare for its anti-inflammatory benefits. It works by inhibiting the production of inflammatory substances, such as cortisone, within the body, with some research showing results to be comparable to prescription hydrocortisone cream. Licorice is a family of ingredients and can also be known as ammonium glycyrrhizate, dipotassium glycyrrhizate (licorice), glycyrrhetinic acid, glycyrrhiza glabra (licorice) root extract, glycyrrhiza glabra root extract or glycyrrhiza inflata root extract.
A patented non-amino acid sugar which gently exfoliates the skin, reduces fine lines and wrinkles and evens out skin tone. It is also a building block of our skin’s natural hyaluronic acid so helps to plump and firm the skin.
L-Ascorbic Acid
Part of the Vitamin C family of ingredients, L-ascorbic acid is Vitamin C in its purest form, and the active form required by the body to result in the many skin skin benefits of Vitamin C. The issue with L-ascorbic acid is in the delivery, as it is very unstable in water, and needs a pH 4 or below for it to penetrate the skin. That being said, when it can be stabilised in a formula and is able to penetrate the skin, it provides the highest potency of any form of Vitamin C currently available. Vitamin C can also be found on ingredients lists as ascorbic acid, ascorbyl glucoside, ascorbyl palmitate, ethyl ascorbic acid, magnesium ascorbyl phosphate, sodium ascorbyl phosphate and tetrahexyldecyl ascorbate.
Mango seed butter, also known as mango kernel butter or mango butter, is a rich and creamy emollient derived from the seeds of the mango fruit (Mangifera indica). In skincare, it is used for its excellent moisturizing, nourishing, and skin-conditioning properties.

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