Cosmedix

Define Age-Defying Treatment 45g

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$113.60
$142.00
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Estimated delivery: Fri, Aug 7th - Wed, Aug 12th

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

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Why You’ll love it
All Skin Types
Dehydrated Skin
Ageing
Wrinkles & Loss of Firmness
Promotes skin's smoother texture
Diminishes fine lines and imperfections
Boosts skin hydration and evenness
Defends against ageing free radicals.
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.

  • Polysorbate 60 Thickeners and stabilisers
    Emulsifier and solubiliser

    Helps blend oil- and water-based ingredients and keep formulas stable.

    May suit

    Those using creams or conditioners that rely on smooth, even textures.

    Worth knowing

    It is widely used in haircare to ensure consistent texture and to help disperse ingredients evenly. It also offers mild surfactant properties that support product spreadability.

  • Lactic Acid pH adjusters
    pH adjuster

    Helps adjust and maintain the product’s pH for optimal performance.

    May suit

    Those looking for formulas that help smooth the cuticle or gently refine the scalp surface.

    Worth knowing

    Lactic Acid can also provide mild hydrating and smoothing benefits in haircare. Its pH-balancing role helps support product stability and performance.

  • Isopropyl Myristate Conditioning agents
    Emollient and texture enhancer

    Helps soften hair and improve slip by adding light, non-greasy conditioning.

    May suit

    Those looking for smoother-feeling hair or products that apply and spread easily.

    Worth knowing

    It is a lightweight ester often used to reduce greasiness and enhance the feel of conditioning formulas. It can also support fragrance and oil distribution within a product.

  • Glyceryl Stearate Thickeners and stabilisers
    Emulsifier and texture enhancer

    Helps blend oil and water and gives haircare formulas a smooth, creamy texture.

    May suit

    Those who like richer conditioners or masks that feel smooth and spread easily.

    Worth knowing

    It also offers light conditioning and can help soften the feel of hair. It is widely used in both skincare and haircare for its reliable stabilising properties.

  • Hamamelis Virginiana (Witch Hazel) Water Botanical extracts
    Soothing plant extract

    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.

  • Stearic Acid Thickeners and stabilisers
    Thickener and stabiliser

    A fatty acid that helps thicken and stabilise formulations while adding a soft, conditioned feel.

    May suit

    Those who prefer richer, creamier textures in conditioners and styling products.

    Worth knowing

    It is commonly used to give products structure and improve spreadability. It can be derived from plant or animal sources, with most haircare brands typically using plant-based forms.

  • Cetearyl Alcohol Conditioning agents
    Fatty alcohol conditioner

    A fatty alcohol that helps soften hair and improve the texture of formulations.

    May suit

    People looking for smoother, more manageable hair or richer, creamier product textures.

    Worth knowing

    Despite the name, fatty alcohols are moisturising and conditioning rather than drying. They also help stabilise and thicken many haircare formulas.

  • 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.

  • Sodium Hydroxide pH 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.

  • Leuconostoc/Radish Root Ferment Filtrate Preservatives
    Natural preservative

    A fermented radish root filtrate used to help keep formulations fresh and stable.

    May suit

    Those interested in products that use fermentation-derived preservation systems.

    Worth knowing

    It provides mild antimicrobial activity and is commonly used in modern, gentle preservation blends. Its use does not change how the product performs on the hair.

  • Tartaric Acid pH adjusters
    pH adjuster

    Helps regulate the pH of haircare formulas for stability and performance.

    May suit

    Those interested in balanced, salon-grade formulations that rely on controlled pH.

    Worth knowing

    As an alpha hydroxy acid, it is primarily used in haircare for its ability to fine‑tune pH rather than for exfoliation. It supports product consistency and ensures other ingredients work as intended.

  • 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.

  • Benzyl Alcohol Preservatives
    Preservative

    Helps preserve formulations and can also act as a solvent or light fragrance component.

    May suit

    Those interested in understanding preservative systems or identifying potential fragrance allergens.

    Worth knowing

    Benzyl Alcohol is commonly used in professional haircare to support product stability and texture. It can also naturally occur in some essential oils.

  • Malic Acid pH adjusters
    pH adjuster

    Helps adjust and maintain the pH balance of haircare formulas.

    May suit

    Those interested in products formulated to support cuticle smoothness through balanced pH.

    Worth knowing

    Malic Acid is an alpha hydroxy acid that can also contribute mild chelating or exfoliating benefits depending on the formula. In haircare it is primarily included at low levels to help stabilise products and support their intended performance.

  • Olea Europaea (Olive) Fruit Oil Oils and butters
    Nourishing oil

    A plant-derived oil that helps smooth, soften and condition the hair.

    May suit

    Those looking to add softness, shine or protection to dry or coarse hair.

    Worth knowing

    It is rich in fatty acids that help reduce moisture loss and improve manageability. Often used in both leave-in and rinse-off formulas for added nourishment.

  • 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.

  • Galactoarabinan Thickeners and stabilisers
    Film-forming polymer

    A plant-derived polysaccharide that helps improve product texture and forms a light film on hair.

    May suit

    Those looking for smoother-feeling hair or lightweight conditioning without heaviness.

    Worth knowing

    It is commonly sourced from larch trees and is valued for its ability to enhance spreadability and reduce moisture loss. Its lightweight film can support smoother styling.

  • Proline Proteins and amino acids
    Amino acid conditioner

    An amino acid that helps support hair feel, softness and overall conditioning.

    May suit

    Those looking for formulas that help improve hair manageability or support lightly replenishing treatments.

    Worth knowing

    Amino acids like proline are often included in small amounts to complement conditioning systems and support the hair’s natural protein structure.

  • Retinyl Palmitate Conditioning agents
    Vitamin-derived conditioning agent

    A vitamin A ester used to support conditioning and overall hair and scalp care.

    May suit

    Those looking for formulations enriched with vitamin-derived ingredients for scalp comfort or hair vitality.

    Worth knowing

    It is commonly included in small amounts to help support the conditioning profile of a formula. Its role in haircare is typically supportive rather than transformative.

  • Citrus Grandis (Grapefruit) Peel Oil Fragrance ingredients
    Fragrance oil

    Provides a fresh citrus scent and light aromatic qualities in haircare products.

    May suit

    Those who enjoy naturally derived citrus fragrances in their haircare routine.

    Worth knowing

    As a citrus essential oil, it is mainly used for its aroma and may also offer a refreshing sensory experience. Like many essential oils, it is used in small amounts within balanced formulas.

  • Cananga Odorata Flower Oil Fragrance ingredients
    Fragrance oil

    A natural essential oil used to add a floral scent and light aromatic benefits to haircare products.

    May suit

    Those who enjoy botanical fragrances in their hair products.

    Worth knowing

    As an essential oil, it may also contribute light conditioning or soothing properties depending on the formulation. Its scent can vary in intensity based on the grade and extraction method.

  • 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.

  • 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.

  • Aloe Barbadensis Leaf Juice Powder Botanical extracts
    Soothing botanical extract

    A powdered form of aloe that helps hydrate and soothe the hair and scalp.

    May suit

    Those looking for gentle hydration or scalp comfort.

    Worth knowing

    Aloe extracts are widely used in haircare for their lightweight conditioning and calming feel. The powdered form is simply a concentrated version that is rehydrated during formulation.

  • 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.

  • Daucus Carota Sativa (Carrot) Root Extract Botanical extracts
    Botanical extract

    A plant extract used to help condition and support the feel of the hair and scalp.

    May suit

    Those looking for plant-derived ingredients or products with added antioxidant benefits.

    Worth knowing

    Carrot root extract is often valued for its naturally occurring vitamins and antioxidants, which can complement conditioning formulas. Its exact benefits vary depending on the concentration and overall product formulation.

  • Prunus Amygdalus Dulcis Oil Oils and butters
    Nourishing plant oil

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

    May suit

    Those seeking added softness, shine, or help with dry or coarse hair.

    Worth knowing

    It is commonly used in haircare for its smooth, silky feel and its ability to support moisture retention. It is generally well tolerated by most hair types.

  • Helianthus Annuus (Sunflower) Seed Oil Oils and butters
    Emollient oil

    A plant-derived oil that helps soften and condition the hair and scalp.

    May suit

    Those seeking lightweight natural oils for moisture, shine or scalp comfort.

    Worth knowing

    It is rich in fatty acids that support hair softness without feeling overly heavy. Often used as a carrier oil in both rinse-off and leave-in formulas.

  • Chamomilla Recutita (Matricaria) Flower Extract Botanical extracts
    Soothing botanical extract

    A plant extract used to help soothe and condition the scalp and hair.

    May suit

    Those seeking gentle, plant-derived ingredients for scalp comfort or lightweight conditioning benefits.

    Worth knowing

    Chamomile extracts are common in both skincare and haircare for their calming properties and light conditioning effect. They can also contribute to a soft, natural feel in formulations.

  • 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.

  • Althaea Officinalis Root Extract Botanical extracts
    Soothing botanical extract

    A plant extract used to soothe the scalp and help condition the hair.

    May suit

    Those looking for gentle, plant-derived ingredients that support scalp comfort and light conditioning.

    Worth knowing

    Marshmallow root extract is valued for its naturally softening and calming qualities in hair and scalp products.

  • Alcohol Solvents
    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.

  • Citric Acid pH 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.

  • 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.

  • Potassium Sorbate Preservatives
    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.

  • Limonene Fragrance ingredients
    Fragrance component

    A fragrance component that also occurs naturally in many citrus and plant oils.

    Worth knowing

    A fragrance component that must be listed separately on labels because a minority of people can be sensitive to it. Its presence is normal, required disclosure and is not a quality signal.

  • Sodium Gluconate Chelating 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.

  • Behenyl Alcohol Conditioning agents
    Fatty alcohol conditioner

    A long‑chain fatty alcohol that helps soften hair and improve product texture.

    May suit

    People looking for smoother-feeling hair or richer, more conditioning formulas.

    Worth knowing

    Despite the name, fatty alcohols like behenyl alcohol are quite different from drying alcohols and are commonly used to add slip and creaminess to haircare products. They can also support the stability and thickness of conditioners and masks.

  • Caprylhydroxamic Acid Preservatives
    Preservative booster

    Helps support a product’s preservation system by inhibiting microbial growth.

    May suit

    Those interested in formulas that use alternative preservative systems.

    Worth knowing

    It is often paired with gentle humectants to create broad-spectrum preservation. Its presence helps maintain product freshness and stability over time.

  • 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.

  • BHT Preservatives
    Antioxidant

    BHT acts as an antioxidant that helps keep formulas stable over time.

    May suit

    Anyone using products that benefit from extended shelf life and maintained performance.

    Worth knowing

    It helps protect oils and other sensitive ingredients from breaking down when exposed to air and light. It is used in very small amounts to support product consistency.

  • Xanthan Gum Thickeners 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.

  • 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.

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