Cosmedix Elite Duo-A 1% Nightly Retinoid Treatment
Cosmedix Elite Duo-A 1% Nightly Retinoid Treatment
Cosmedix Elite Duo-A 1% Nightly Retinoid Treatment
Cosmedix Elite Duo-A 1% Nightly Retinoid Treatment
Cosmedix Elite Duo-A 1% Nightly Retinoid Treatment
Cosmedix Elite Duo-A 1% Nightly Retinoid Treatment
Cosmedix

Elite Duo-A 1% Nightly Retinoid Treatment 30ml

$248.90
Only 2 remaining in stock!
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  • Click & Collect
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Estimated delivery: Mon, Aug 3rd - Fri, Aug 7th

Free Click and collect is available at checkout. Orders are ready within 1 hour during opening hours. Store Address: 56 Parer Rd, Airport West, VIC Australia 3042 Phone (03) 9999 5902

Artists & Models Oval Styling Brush Gift
FREE Brushworx Oval Styling Brush
Valued at $29.95, free with all orders over $129.
Why You’ll love it
Cruelty Free
Ageing
Wrinkles & Loss of Firmness
Reduces fine lines and wrinkles
Supports skin barrier function
Combines Retinal + Retinol in one
Hydrating, non-stripping formula
Description
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Directions
Ingredients
  • Aqua Solvents
    Solvent

    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.

  • Glycerin Humectants
    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.

  • Jojoba Seed Oil Oils and butters
    Emollient oil

    A lightweight plant oil that helps condition and soften the hair.

    May suit

    Those seeking smoother, more manageable hair or added moisture without heaviness.

    Worth knowing

    Jojoba oil is structurally similar to natural scalp oils, which makes it versatile in many haircare formulas. It is commonly used to enhance softness and shine.

  • Beta-Glucan Humectants
    Moisturising humectant

    Helps attract and retain moisture while supporting a smoother, conditioned feel.

    May suit

    People with dry, damaged or sensitised hair and scalp may appreciate its soothing, hydrating benefits.

    Worth knowing

    Beta-glucan is a naturally occurring polysaccharide often derived from oats or fungi and is valued for its calming and hydrating properties. It can also contribute light film-forming benefits that support softness.

  • Stearyl Alcohol Conditioning agents
    Emollient and thickener

    A fatty alcohol that helps soften the hair and give products a smooth, creamy texture.

    May suit

    People looking for conditioners or treatments that provide slip, softness and richer textures.

    Worth knowing

    Although called an alcohol, it is a waxy, non‑drying fatty alcohol commonly used to enhance conditioning performance and product stability.

  • Cetyl Alcohol Conditioning agents
    Emollient and texture enhancer

    Cetyl Alcohol helps soften the hair and gives products a smooth, creamy texture.

    May suit

    Those looking for conditioning, slip, or richer textures in their haircare products.

    Worth knowing

    Despite the name, fatty alcohols like cetyl alcohol are non‑drying and are commonly used to add emollience and stability to formulations.

  • Tocopheryl Acetate Conditioning agents
    Antioxidant and conditioning support

    A stable form of vitamin E used to help condition hair and support product stability.

    May suit

    Those looking for added conditioning support or antioxidant benefits in their haircare.

    Worth knowing

    It is commonly used because it is more stable than pure vitamin E while still offering similar benefits. It appears in many leave-in and rinse-off formulations.

  • Theobroma Cacao Seed Butter Oils and butters
    Emollient butter

    A rich plant butter that helps condition and soften the hair.

    May suit

    Those seeking added smoothness, softness or moisture in dry or coarse hair types.

    Worth knowing

    It creates a protective, buttery coating that can help reduce moisture loss and enhance manageability. Often used in nourishing and restorative treatments.

  • Butyrospermum Parkii Butter Oils and butters
    Conditioning butter

    A rich butter that softens and conditions, adding slip to dry or coarse hair.

    May suit

    Dry, coarse, curly or thick hair wanting extra softness.

    Worth knowing

    Rich and nourishing, so amounts can be adjusted to hair type.

  • Panthenol Conditioning agents
    Conditioning agent

    Helps condition, soften and add a smooth, healthy feel to the hair.

    May suit

    Most hair types, especially dry or dull hair.

    Worth knowing

    A versatile, well-tolerated conditioning ingredient.

  • Bisabolol Botanical extracts
    Soothing botanical component

    Bisabolol is a calming component often used to help soothe the scalp and support comfortable wear of hair products.

    May suit

    Those with a sensitive or easily irritated scalp may appreciate its calming properties.

    Worth knowing

    It is commonly derived from chamomile or produced synthetically with similar benefits. It is widely used in both skincare and haircare for its gentle, comforting profile.

  • Potassium Cetyl Phosphate Cleansers / surfactants
    Emulsifying surfactant

    Helps mix oil‑ and water‑based ingredients and provides mild cleansing action.

    May suit

    Those who prefer formulas that feel lightweight and spread easily.

    Worth knowing

    It is commonly used as an emulsifier to stabilise creams and conditioners without adding heaviness. Its mild surfactant properties can also support product texture and rinseability.

  • Retinol Anti-dandruff / scalp care
    Vitamin A derivative

    Retinol is a form of vitamin A used in some scalp‑care formulas to support healthy skin renewal.

    May suit

    People interested in targeted scalp treatments or products aimed at improving scalp texture and turnover.

    Worth knowing

    Retinol is more common in skincare than haircare, but small amounts may be included in specialised scalp products. It is typically formulated at low levels to help maintain comfort and balance.

  • Retinaldehyde Conditioning agents
    Renewing antioxidant

    A vitamin A derivative used to support scalp and hair fibre renewal.

    May suit

    Those interested in targeted scalp-care or antioxidant-focused treatments.

    Worth knowing

    Retinaldehyde is less common in haircare than in skincare but can be included for its gentle renewing and antioxidant properties. Formulators typically use it in low concentrations to maintain comfort and stability.

  • Aloe Barbadensis Leaf Extract Botanical extracts
    Soothing botanical extract

    Aloe vera extract helps hydrate and soothe the hair and scalp.

    May suit

    Those looking for lightweight hydration or gentle scalp comfort.

    Worth knowing

    Aloe extracts are widely used for their moisturising and calming properties in both hair and skin products.

  • Caesalpinia Spinosa Gum Thickeners and stabilisers
    Natural thickener

    A plant-derived gum used to thicken and stabilise haircare formulations.

    May suit

    Those who prefer products using plant-derived texture enhancers.

    Worth knowing

    It helps create a smooth, uniform texture and can improve the feel of conditioners, masks and styling products. It is commonly used as a natural alternative to synthetic thickeners.

  • Allantoin Conditioning agents
    Scalp‑soothing conditioner

    Allantoin helps soothe the scalp and condition the hair and skin.

    May suit

    Those with a sensitive or easily irritated scalp may appreciate its calming effect.

    Worth knowing

    It is widely used in personal care for its comforting feel and compatibility with many formulas. In haircare, it supports a smoother, more comfortable scalp experience.

  • Tocopherol Preservatives
    Antioxidant

    An antioxidant that helps support product stability and can provide conditioning benefits to hair.

    May suit

    Those wanting added nourishment or antioxidant support in their haircare routine.

    Worth knowing

    Tocopherol is commonly included to help protect oils in a formula from oxidising and to offer light conditioning benefits. It is widely used in both skincare and haircare products.

  • Cellulose Thickeners and stabilisers
    Viscosity controller

    Helps thicken and stabilise haircare formulas for a smoother application.

    May suit

    Those who prefer products with plant-derived structuring ingredients.

    Worth knowing

    Cellulose is a natural polymer typically sourced from plants and is widely used to improve texture and consistency in many cosmetic products.

  • Dipotassium Glycyrrhizate Botanical extracts
    Soothing botanical derivative

    Helps soothe and condition the scalp and hair.

    May suit

    Those with a sensitive or easily irritated scalp.

    Worth knowing

    Derived from liquorice root, it is often used to help calm the scalp and support comfortable product use. It can complement other conditioning or scalp‑care ingredients.

  • Polysorbate 20 Thickeners 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.

  • Phenoxyethanol Preservatives
    Preservative

    Helps keep the product stable and pleasant to use after opening.

    May suit

    All products that need protecting from spoilage.

    Worth knowing

    A very common, well-studied preservative used at low levels.

  • Ethylhexylglycerin Preservatives
    Preservative booster

    Helps support the preservation system and can provide mild skin-conditioning benefits.

    May suit

    Those interested in gentle preservation systems or sensitive scalps may find it relevant.

    Worth knowing

    It is often paired with other preservatives to improve their effectiveness while allowing for lower usage levels. It also has light moisturising and conditioning properties.

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