Medik8 Crystal Retinal 10
Medik8 Crystal Retinal 10
Medik8 Crystal Retinal 10
Medik8 Crystal Retinal 10
Medik8

Crystal Retinal 10 30ml

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$130.56
$153.60
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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
40+
All Skin Types
Alcohol Free
Artificial Fragrance Free
Cruelty Free
Clinically proven to visibly brighten, firm, and smooth the skin.
Hydrates skin for a supple, even-toned, and more youthful complexion.
Retinaldehyde, a faster-acting form of vitamin A, delivers remarkable results.
Unique stabilisation system ensures optimum potency.
Description
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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.

  • Caprylic/Capric Triglyceride Oils and butters
    Lightweight emollient

    A lightweight emollient that helps soften and smooth the hair without heaviness.

    May suit

    Those wanting conditioning benefits that do not weigh hair down, including fine or easily-greasy hair types.

    Worth knowing

    It is commonly derived from coconut oil and glycerin and is valued for its silky, non-greasy feel. It is widely used in both skincare and haircare for its gentle, versatile performance.

  • 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.

  • Isododecane Solvents
    Lightweight solvent

    Isododecane helps dissolve other ingredients and gives hair products a lightweight, non-greasy feel.

    May suit

    People who prefer lightweight styling or smoothing products that don’t weigh the hair down.

    Worth knowing

    It evaporates quickly, which can help products spread easily without residue. It is commonly used to enhance slip and smoothness in styling formulas.

  • Cetearyl Olivate Conditioning agents
    Conditioning emulsifier

    Helps condition the hair and create smooth, creamy product textures.

    May suit

    Those looking for softer, more manageable hair or products with a creamy, stable texture.

    Worth knowing

    It is derived from olive oil and is commonly paired with Sorbitan Olivate to form a gentle, stable emulsifying system. It supports both product texture and hair feel without weighing hair down.

  • Sodium Acrylate/Sodium Acryloyldimethyl Taurate Copolymer Thickeners and stabilisers
    Thickener and stabiliser

    A polymer that helps thicken and stabilise haircare formulas for a smooth, consistent texture.

    May suit

    Those who prefer products with a smooth, non‑sticky feel or formulas that stay well‑blended.

    Worth knowing

    It is commonly used to improve product texture and to keep water‑ and oil‑based ingredients evenly mixed. It also helps enhance spreadability without weighing the hair down.

  • 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.

  • PPG-12/SMDI Copolymer Thickeners and stabilisers
    Film-forming polymer

    A film-forming polymer that helps improve texture, hold, and product stability.

    May suit

    People looking for light styling support or smoother application from leave-in or styling products.

    Worth knowing

    It is commonly used in styling formulas to enhance hold without stiffness. It can also help stabilise emulsions and improve spreadability.

  • Sorbitan Olivate Conditioning agents
    Emulsifier and conditioning agent

    Helps blend oil and water in formulas while adding light conditioning to the hair.

    May suit

    Those wanting gentle, lightweight conditioning in creams, conditioners or styling products.

    Worth knowing

    It is derived from sorbitol and olive oil components and is commonly used to create smooth, stable emulsions. It is valued for its mildness and compatibility with many hair types.

  • 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.

  • Titanium Dioxide Colourants
    Opacifier / colourant

    Titanium Dioxide is used to add white colour or opacity to haircare products.

    May suit

    Those interested in product appearance or opacity, such as in creams or conditioners.

    Worth knowing

    It is commonly used to create a uniform, opaque look and can also help stabilise formula appearance. Its presence does not affect how the product performs on the hair.

  • Eclipta Prostrata Extract Botanical extracts
    Botanical extract

    A plant extract used for its soothing and conditioning benefits in hair and scalp care.

    May suit

    Those looking for gentle botanical support for scalp comfort or overall hair conditioning.

    Worth knowing

    It is traditionally used in herbal hair treatments and is included in modern formulations for its calming properties. Its effects depend on the overall product formula and concentration used.

  • Cyclodextrin Thickeners and stabilisers
    Stabiliser and carrier

    Cyclodextrin helps stabilise formulas and can encapsulate ingredients to improve their performance.

    May suit

    People looking for products with improved fragrance control or enhanced delivery of active ingredients.

    Worth knowing

    It can help reduce the volatility of certain ingredients, supporting a more consistent product experience. Cyclodextrins are widely used in cosmetic formulations for their gentle, supportive role.

  • Squalane Oils and butters
    Lightweight emollient

    Squalane is a lightweight emollient that helps smooth and soften the hair.

    May suit

    Those seeking added softness, shine and frizz control without a heavy or greasy feel.

    Worth knowing

    It is often derived from plant sources such as sugarcane and is valued for its stability and non-greasy texture. It is suitable for most hair types, including fine hair, due to its lightness.

  • Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer Thickeners and stabilisers
    Texture enhancer

    A polymer that helps thicken and stabilise haircare formulas for a smoother, more even texture.

    May suit

    People who prefer products with a silky, non-greasy feel or stable gel-like textures.

    Worth knowing

    It is often used to create lightweight gels and serums that spread easily without stickiness. It also helps maintain product consistency over time.

  • 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.

  • Melia Azadirachta Leaf Extract Botanical extracts
    Botanical extract

    A plant-derived extract often used for its soothing and balancing benefits on the scalp.

    May suit

    Those looking for botanical ingredients that support scalp comfort or gentle care.

    Worth knowing

    Neem-derived extracts are commonly included in haircare for their traditional use in promoting scalp balance. Exact benefits can vary based on the concentration and formulation.

  • Hydroxypropyl Methylcellulose Thickeners and stabilisers
    Thickener and stabiliser

    A plant-derived polymer that helps thicken formulas and improve texture.

    May suit

    Those who prefer products with smoother, more uniform application.

    Worth knowing

    It can also form a light film on the hair, contributing to softness and manageability. It is widely used in both haircare and skincare for its reliable performance.

  • Sodium Hyaluronate Humectants
    Hydrating humectant

    Draws moisture into the hair and helps maintain hydration.

    May suit

    Those with dry, dehydrated or coarse hair seeking added softness and moisture retention.

    Worth knowing

    It is the salt form of hyaluronic acid and is widely used because it can hold many times its weight in water. In haircare, it helps support smoother, more manageable strands without adding heaviness.

  • Tetrahexyldecyl Ascorbate Oils and butters
    Oil‑soluble vitamin C derivative

    An oil‑soluble form of vitamin C that supports antioxidant protection in hair and scalp formulas.

    May suit

    Those interested in colour protection, scalp care, or antioxidant‑rich treatments.

    Worth knowing

    Its oil‑soluble nature allows it to blend easily into richer haircare textures and remain stable in formulations. It is used at low levels to help support overall formula performance rather than provide a dramatic standalone effect.

  • Alumina Thickeners and stabilisers
    Opacifying and absorbent agent

    Alumina is a mineral powder used to help stabilise formulas and give products a smooth, opaque appearance.

    May suit

    Those who prefer products with a more velvety or refined texture.

    Worth knowing

    In haircare, alumina can also aid in dispersing other ingredients evenly throughout a formula. It is used in small amounts to support product consistency rather than to affect hair directly.

  • Isostearic Acid Oils and butters
    Emollient

    Isostearic Acid helps soften and smooth the hair by providing lightweight emolliency.

    May suit

    Those looking for conditioning, smoothing or frizz‑reducing benefits in styling or treatment products.

    Worth knowing

    It is a branched fatty acid often used to improve spreadability and help other ingredients blend evenly in a formula. It is also valued for its stability, which supports long‑lasting product texture.

  • Lecithin Conditioning agents
    Emollient & conditioning agent

    Lecithin helps soften and condition the hair while supporting product texture.

    May suit

    Those seeking added softness, moisture support or smoother-feeling hair.

    Worth knowing

    It is a phospholipid commonly derived from soy or sunflower and is valued for its ability to enhance spreadability and moisture retention. It can also help stabilise certain formulations.

  • Polyglyceryl-3 Polyricinoleate Thickeners and stabilisers
    Emulsifier

    Helps blend oil‑based and water‑based ingredients for a smooth, uniform formula.

    May suit

    Those who prefer products with plant‑derived emulsifiers.

    Worth knowing

    It is derived from castor oil and glycerin and is valued for creating stable, creamy textures in haircare products.

  • Polyhydroxystearic Acid Thickeners and stabilisers
    Stabiliser / dispersing agent

    Helps stabilise formulations and evenly disperse ingredients in haircare products.

    May suit

    Those using products with pigments, mineral ingredients or complex emulsions may appreciate its role in keeping formulas uniform.

    Worth knowing

    It is commonly used to keep mixtures smooth and prevent separation. Its presence helps products maintain consistent texture and performance over time.

  • 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.

  • Pentylene Glycol Humectants
    Humectant and solvent

    Helps attract and hold moisture while also improving the spreadability of a formula.

    May suit

    Those seeking lightweight hydration without heaviness.

    Worth knowing

    It also supports product texture and can enhance the performance of other ingredients in a formula.

  • 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.

  • Moringa Oleifera Seed Oil Oils and butters
    Nourishing plant oil

    A lightweight plant oil that helps condition and soften hair.

    May suit

    Those looking to add smoothness, shine, or softness to dry or textured hair.

    Worth knowing

    It is rich in fatty acids that help support hair feel and manageability. It is commonly used in both rinse-off and leave-in products for added nourishment.

  • Sodium Polyaspartate Conditioning agents
    Conditioning polymer

    Helps condition and hydrate the hair by forming a light, smoothing film.

    May suit

    Anyone looking for improved softness, moisture retention, and manageability.

    Worth knowing

    It can also help reduce static and improve combability without adding weight. Its film-forming nature supports a smoother feel on both hair and skin.

  • Disodium EDTA Chelating agents
    Chelating agent

    Binds to minerals from hard water so the product works consistently and stays stable.

    May suit

    All products, especially in hard-water areas.

    Worth knowing

    Used in tiny amounts to keep formulas performing reliably.

  • Lonicera Japonica Flower Extract Botanical extracts
    Botanical extract

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

    May suit

    People looking for gentle botanical ingredients that support a comfortable scalp.

    Worth knowing

    It is commonly included in formulations for its calming and antioxidant properties. Botanical extracts can complement other conditioning or soothing agents in a formula.

  • Lonicera Caprifolium Flower Extract Botanical extracts
    Botanical extract

    A plant-derived extract used to condition and support the overall feel of hair and scalp.

    May suit

    Those looking for gentle, plant-based ingredients in their haircare routine.

    Worth knowing

    It is often included for its soothing and antioxidant properties in cosmetic formulas. As with most botanical extracts, its exact benefits can vary depending on concentration and formulation.

  • Daucus Carota Sativa Seed Oil Oils and butters
    Nourishing plant oil

    A lightweight plant oil that helps condition and soften hair.

    May suit

    Those looking to add smoothness and nourishment to dry or coarse hair.

    Worth knowing

    Carrot seed oil is commonly used for its emollient properties and blends well with other oils in haircare formulas. It is typically included in small amounts to support overall conditioning benefits.

  • 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.

  • 3-O-Ethyl Ascorbic Acid Conditioning agents
    Antioxidant derivative of vitamin C

    This ingredient is a stable vitamin C derivative used to support antioxidant protection in haircare formulas.

    May suit

    Those interested in colour protection, shine, or antioxidant-focused treatments.

    Worth knowing

    Its stabilised structure makes it more resistant to oxidation than pure ascorbic acid. In haircare, it is mainly included to help maintain formula freshness and support colour vibrancy.

  • Hydroxyacetophenone Preservatives
    Antioxidant and preservative booster

    Helps support product freshness by boosting preservative performance and providing antioxidant benefits.

    May suit

    Those who prefer formulas designed to maintain stability with lower preservative loads.

    Worth knowing

    It is commonly used in modern formulations to enhance overall product stability and texture. It can also contribute mild soothing properties in some formulas.

  • 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.

  • Sorbitan Isostearate Thickeners and stabilisers
    Emulsifier

    Helps blend oil- and water-based ingredients to create a smooth, stable formula.

    May suit

    Those interested in products with a consistent, creamy texture.

    Worth knowing

    It is commonly used to improve product stability and spreadability in both haircare and skincare. It can also support the even distribution of other ingredients through the hair.

  • Vanilla Planifolia Fruit Extract Botanical extracts
    Botanical extract

    A plant-derived extract used to add a pleasant scent and provide gentle conditioning benefits.

    May suit

    Those who enjoy naturally derived aromatic ingredients in their haircare.

    Worth knowing

    Although often valued for its aroma, vanilla extract can also contribute mild antioxidant benefits in formulations. Its presence is mainly for sensory enhancement rather than functional performance.

  • Decylene Glycol Humectants
    Humectant and preservative booster

    Helps attract moisture and supports the effectiveness of preservative systems.

    May suit

    Those looking for products that maintain hydration without heaviness.

    Worth knowing

    It is often used in modern formulations to enhance texture and support product stability. It also contributes a light, non-greasy feel.

  • 2-Hexanediol Solvents
    Solvent and humectant

    Helps dissolve other ingredients and provides light moisture to haircare formulas.

    May suit

    Those interested in lightweight, non-greasy formulas that spread easily.

    Worth knowing

    It is also used as a preservative booster to support formula stability.

  • 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.

  • Coumarin Fragrance ingredients
    Fragrance component

    Coumarin is a fragrance ingredient that adds a sweet, warm, slightly herbal note to scented formulations.

    May suit

    Those who enjoy subtly sweet, complex fragrance profiles in their haircare products.

    Worth knowing

    It is one of the fragrance components that must be listed individually when present above certain levels, as some people may prefer to monitor specific scent materials. Its presence does not indicate the overall strength of a product's fragrance.

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