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Cosmedix Elite Pepoxide Antioxidant Peptide Concentrate is a potent serum with 16 antioxidants and peptides to target visible signs of ageing.
This multivitamin concentrate helps protect the skin from environmental stress while brightening uneven skin tone and softening the appearance of fine lines and wrinkles. Ideal for prepping the skin before laser or post-peel treatments, it supports a smoother, firmer, more radiant complexion.
Packed with skin-loving vitamins and a peptide complex, Pepoxide promotes a healthier-looking skin barrier while helping to reduce the look of photodamage.
Perfect for those concerned with ageing, dullness, or pigmentation.
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Directions
How To Use Cosmedix Elite Pepoxide Antioxidant Peptide Concentrate
AM - Dispense one to two pumps of serum and apply to freshly cleansed and toned skin.
PM - Dispense one to two pumps of serum and apply to freshly cleansed and toned skin.
The water base that carries and dissolves the other ingredients in most products.
May suit
All hair and skin types.
Worth knowing
Almost always the first ingredient listed in water-based products.
Alcohol Denat.Solvents
Solvent
A fast-evaporating solvent that helps dissolve ingredients and improve product dry time.
May suit
People who use styling products that benefit from quick drying or a lightweight feel.
Worth knowing
Its quick evaporation can help reduce residue and support a clean finish in styling formulas. Some may notice it can feel slightly drying in leave-in products depending on hair type.
GlycerinHumectants
Humectant
Attracts and holds water to help hair feel hydrated and soft.
May suit
Dry or dehydrated hair, and many curl and moisture routines.
Worth knowing
A very common, well-tolerated humectant used across countless products.
Hydrolyzed CollagenProteins and amino acids
Strengthening protein
A protein derivative that helps support hair strength and improve the feel of damaged strands.
May suit
People with weakened, chemically treated, or brittle hair looking for a reinforcing ingredient.
Worth knowing
Hydrolysed proteins are broken into smaller fragments so they can more easily interact with the hair surface. They are commonly used to enhance conditioning performance alongside other moisturising ingredients.
MannitolHumectants
Moisture-binding agent
Mannitol helps attract and hold moisture to support hair and scalp hydration.
May suit
Those looking for gentle hydration or formulas suited to dry or sensitive scalps.
Worth knowing
It is a sugar alcohol often used to support moisture balance and improve product texture. It can also contribute to overall formula stability.
GluconolactoneHumectants
Humectant
Gluconolactone helps attract and hold moisture in hair and scalp.
May suit
Those seeking gentle hydration or lightweight moisture support.
Worth knowing
It is part of the polyhydroxy acid (PHA) family and is known for being mild and suitable for many hair types. It can also support product stability and texture.
CaffeineAnti-dandruff / scalp care
Scalp-support ingredient
Caffeine is used in haircare to help support scalp vitality and create an energised feel.
May suit
People interested in scalp-focused formulas or products aimed at maintaining the appearance of fuller, energised hair.
Worth knowing
It is often included in shampoos, tonics and leave‑ins to complement other scalp-care ingredients. Its effects are generally most noticeable when used consistently.
Superoxide DismutaseConditioning agents
Antioxidant enzyme
An antioxidant enzyme that helps protect hair and scalp from oxidative stress.
May suit
People interested in supportive scalp care or antioxidant-rich formulas.
Worth knowing
It is often included in advanced formulations to help maintain the stability of the product and support the scalp’s natural resilience. Its role is typically complementary rather than a primary performance driver.
Phenyl T-ButylnitronePreservatives
Antioxidant
An antioxidant used to help protect formulas from oxidative degradation.
May suit
Those interested in products designed to support formula stability or protect sensitive ingredients.
Worth knowing
It acts as a spin-trap antioxidant, helping maintain product freshness and performance over time.
GlutathioneProteins and amino acids
Antioxidant
Acts as an antioxidant that helps support the stability and appearance of haircare formulations.
May suit
People interested in antioxidant-rich or protective hair treatments.
Worth knowing
Glutathione is a tripeptide naturally present in the body and is used in cosmetics for its supportive antioxidant properties. In haircare, it is typically included in small amounts to help maintain formula quality.
A plant-derived water used to soothe the scalp and provide a mild astringent effect.
May suit
Those looking for calming or refreshing scalp care benefits.
Worth knowing
Witch hazel water is commonly included in hair and scalp formulas for its gentle toning properties. It can complement other scalp-balancing ingredients.
DextranThickeners and stabilisers
Stabiliser and texture enhancer
A polysaccharide used to help stabilise formulas and improve product texture.
May suit
Those who prefer products with a smoother, more uniform feel.
Worth knowing
Dextran can also support the performance of other ingredients by helping maintain an even consistency. It is commonly used in both skincare and haircare for its gentle, supportive role in formulations.
Provides a fresh, citrus aroma and can offer light botanical benefits in haircare formulas.
May suit
Those who enjoy citrus-scented hair products or prefer plant-derived fragrance sources.
Worth knowing
As an essential oil, it naturally contains components like limonene that contribute to its scent. Formulators may use it in small amounts to enhance sensory appeal.
Xanthan GumThickeners and stabilisers
Thickener and stabiliser
Xanthan Gum helps thicken and stabilise haircare formulas for a smooth, consistent texture.
May suit
People who prefer products with a richer or more gel-like texture.
Worth knowing
It is a polysaccharide widely used in cosmetics to keep formulas uniform and easy to apply. It works well alongside many other common ingredients.
Sodium GluconateChelating agents
Chelating agent
Helps bind metal ions in water and formulas to support stability and performance.
May suit
Those living in hard-water areas or using products designed to maintain formula clarity and effectiveness.
Worth knowing
By binding minerals, it can help reduce the impact of hard water on hair feel and product behaviour. It is commonly used in modern, mild formulations.
Sodium BenzoatePreservatives
Preservative
Helps protect water-based products from spoilage so they stay usable.
May suit
All products that need a preservative system.
Worth knowing
Often paired with other preservatives for broad protection.
Potassium SorbatePreservatives
Preservative
Helps keep haircare formulas stable by preventing the growth of microbes.
May suit
Anyone who uses water-based products that benefit from reliable preservation.
Worth knowing
It is commonly used alongside other preservation systems to maintain product freshness and extend shelf life. It is generally well tolerated in rinse-off and leave-in products.
Sodium HydroxidepH adjusters
pH adjuster
Helps control and stabilise the pH of haircare formulations.
May suit
Those interested in how product pH affects scalp comfort or hair cuticle behaviour.
Worth knowing
It is used in very small amounts to bring a formula to the desired pH range. Once adjusted, it does not act as a strong alkaline agent in the finished product.
Polysorbate 20Thickeners and stabilisers
Solubiliser / emulsifier
Helps blend oil‑based ingredients into water‑based formulas for a smooth, even texture.
May suit
Those using products with essential oils or fragranced blends, as it helps disperse these evenly.
Worth knowing
It is widely used as a gentle solubiliser in both leave‑in and rinse‑off products. Its presence can improve product consistency and prevent ingredient separation.
Citric AcidpH adjusters
pH adjuster
Fine-tunes the product pH, which can help the hair surface feel smooth.
May suit
Most hair types as part of a balanced formula.
Worth knowing
Usually present in small amounts to balance the formula.
Sodium CitratepH adjusters
pH adjuster
Sodium Citrate helps maintain or adjust the pH of haircare formulas.
May suit
Anyone using products designed to stay within a specific pH range, such as colour‑treated or chemically treated hair.
Worth knowing
It also has mild chelating abilities, helping formulas remain stable in the presence of minerals found in water. Its use supports the consistency and performance of many shampoos and conditioners.
Acetyl Tributyl CitrateSolvents
Solvent / plasticiser
Helps dissolve or disperse other ingredients and can contribute to flexible, smooth-feeling product textures.
May suit
Those using styling or treatment products that rely on even ingredient distribution or flexible film formation.
Worth knowing
It is commonly used in cosmetic formulations as a plasticiser to improve spreadability and product performance. It is generally well tolerated in leave-on and rinse-off hair products.
DextrinThickeners and stabilisers
Film-former / texture enhancer
Dextrin helps improve product texture and can provide light hold or structure to hair.
May suit
People looking for gentle styling support or added volume without a heavy feel.
Worth knowing
Dextrin is a carbohydrate-based ingredient commonly derived from starch and is widely used for its versatile thickening and film-forming qualities.
Ferulic AcidBotanical extracts
Antioxidant
Ferulic acid is an antioxidant that helps support the stability and performance of haircare formulas.
May suit
Those interested in antioxidant-rich or colour-protecting hair products.
Worth knowing
It is commonly derived from plant sources and is used to help protect formulas from oxidative degradation. Its supportive role can complement other antioxidant ingredients.
AlcoholSolvents
Solvent and drying agent
Helps dissolve other ingredients and can aid quick drying in styling products.
May suit
Those using sprays or styling products that benefit from fast evaporation.
Worth knowing
In haircare, this typically refers to ethanol or denatured alcohol, which helps formulas feel lighter and dry faster. Its effect depends on the overall product balance and supporting conditioning ingredients.
Isopropyl AlcoholSolvents
Solvent
Helps dissolve ingredients and supports quick-drying formulas.
May suit
Those using styling products that benefit from fast evaporation, such as sprays.
Worth knowing
It is commonly used at low levels to improve texture and spreadability. It evaporates quickly, leaving minimal residue on the hair.
Calcium GluconateHumectants
Moisture-supporting ingredient
Helps support moisture balance and maintain a smooth feel in hair and scalp products.
May suit
Those seeking gentle hydration or products designed to leave hair feeling softer and more manageable.
Worth knowing
It is a mild ingredient often used to support conditioning or hydrating formulas. It can also contribute to overall product stability.
Questions and Answers
Questions and Answers
Reviews
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Michelle
23 Mar 2026
Definitely buy this product, it's so good!! And love my hair care, best products, service and delivery. Thank you!