Serioxyl Advanced Shampoo and Densifying Serum Duo
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Delivery
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Click & Collect
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
L’Oréal Professionnel Serioxyl Shampoo & Advanced Densifying Serum Duo targets thinning hair by purifying the scalp and promoting denser-looking strands.
This expert duo is ideal for fine or sparse hair types. The shampoo deeply cleanses the scalp, removing impurities, product build-up and excess oil to create a refreshed, healthy foundation. The densifying serum is powered by 5% Stemoxydine and resveratrol to support hair fibre density and awaken dormant follicles.
With daily use, hair appears visibly thicker in just 6 weeks*. The serum has a lightweight, fast-absorbing texture that won’t leave residue. Use the shampoo in your regular routine, and apply the serum each evening for best results.
How To Use L'Oreal Professional Serioxyl Advanced Shampoo and Densifying Serum Duo
• Apply shampoo to wet hair, lather, massage scalp and rinse thoroughly
• Apply serum at night to dry or towel-dried hair
• Divide hair into 4 sections, spray directly onto scalp (6 sprays per section)
• Massage gently with fingertips, do not rinse out
L'Oreal Professional Serioxyl Advanced Shampoo and Densifying Serum Duo Ingredients
Shampoo:
Aqua (Water), Sodium Laureth Sulfate, Coco-Betaine, Glycol Distearate, Sodium Chloride, Dimethicone, Hexylene Glycol, PEG-55 Propylene Glycol Oleate, Salicylic Acid, Carbomer, Sodium Hydroxide, Guar Hydroxypropyltrimonium Chloride, Sodium Benzoate, Linalool, Citric Acid, Glycerin, Benzyl Salicylate, Coumarin, Isopropyl Alcohol, Alpha-Isomethyl Ionone, CI 60730, Parfum (Fragrance)
Serum:
Alcohol Denat., Aqua (Water), Diethyllutidinate, PEG-40 Hydrogenated Castor Oil, Hydroxypropyl Tetrahydropyrantriol, Cetrimonium Chloride, Inositol, Disodium EDTA, Limonene, Linalool, Benzyl Salicylate, Benzyl Alcohol, Citronellol, Alpha-Isomethyl Ionone, Geraniol, Sodium Citrate, Citral, Parfum (Fragrance), 5% Stemoxydine, Resveratrol
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Shampoo Base Cleansers / surfactantsCleansing blend
A general term referring to the blend of cleansing agents used to wash the hair and scalp.
May suitAnyone looking for information on how cleansing components contribute to overall shampoo performance.
Worth knowingA shampoo base typically combines surfactants with conditioning and stabilising ingredients to balance cleansing with hair feel. Exact performance depends on the specific surfactants and supporting ingredients used.
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Aqua SolventsSolvent
The water base that carries and dissolves the other ingredients in most products.
May suitAll hair and skin types.
Worth knowingAlmost always the first ingredient listed in water-based products.
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Sodium Laureth Sulfate Cleansers / surfactantsCleanser
Helps cleanse the hair and scalp by removing oil, sweat and product build-up.
May suitOily scalps, heavy product users and people who like a strong cleanse.
Worth knowingMay feel too cleansing for some dry, curly, colour-treated or sensitive hair types. This depends on the full formula and your hair needs.
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Coco-Betaine Cleansers / surfactantsMild surfactant
A mild, coconut-derived surfactant that helps cleanse and create a soft lather.
May suitPeople looking for gentle cleansing that doesn't feel stripping.
Worth knowingIt is often used alongside other surfactants to improve foam quality and overall mildness. Common in shampoos designed for frequent use.
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Glycol Distearate Thickeners and stabilisersOpacifier and pearlising agent
Adds a pearlescent look and helps thicken and stabilise shampoos and conditioners.
May suitThose who like creamy, luxurious-feeling shampoo or conditioner textures.
Worth knowingIt also provides a mild conditioning feel, helping formulas spread smoothly through the hair. Its use is common in many everyday cleansing products.
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Sodium Chloride Thickeners and stabilisersViscosity adjuster
Sodium Chloride is used to adjust the thickness of shampoos and other cleansing formulas.
May suitThose interested in how a product’s texture and lather are achieved.
Worth knowingIt is a simple mineral salt that helps create a familiar shampoo feel and can influence how a cleanser spreads through the hair.
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Dimethicone SiliconesSlip and shine agent
Smooths the hair surface, adds slip and shine and helps reduce frizz.
May suitFrizz-prone, coarse or dry hair wanting a smooth, glossy finish.
Worth knowingSome people prefer silicone-free formulas, especially for certain curl routines. It is widely used and helpful in many smoothing products.
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Hexylene Glycol SolventsSolvent and texture enhancer
Hexylene Glycol helps dissolve other ingredients and improves the spreadability of haircare formulations.
May suitThose using stylers, treatments or serums that rely on smooth, even application.
Worth knowingIt is commonly used in both leave-in and rinse-off products to support stable, easy-to-apply textures. It can also assist with product absorption and consistency.
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PEG-55 Propylene Glycol Oleate Cleansers / surfactantsSolubiliser / mild surfactant
Helps solubilise oils and distribute ingredients evenly in haircare formulas.
May suitThose using products that blend oils with water-based formulas, such as lightweight cleansers or treatment sprays.
Worth knowingIt is often used to help create stable, uniform textures and to support gentle cleansing or dispersion of conditioning oils. Its PEG content also helps products rinse easily.
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Salicylic Acid Exfoliating acidsScalp exfoliant
Helps dissolve dead skin buildup on the scalp and supports a clearer, fresher surface.
May suitPeople dealing with flaky scalps, congestion or product buildup.
Worth knowingIt is widely used in scalp-care formulas because it breaks down excess oils and debris without needing physical scrubbing. Often found in dandruff-control products.
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Carbomer Thickeners and stabilisersThickener and stabiliser
Carbomer helps thicken and stabilise gels, creams and styling formulas.
May suitAnyone who prefers smooth, consistent textures in styling or leave-in products.
Worth knowingIt helps formulas stay evenly mixed and glide easily through the hair or onto the scalp. It is widely used because it works in very small amounts and provides reliable texture.
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Sodium Hydroxide pH adjusterspH adjuster
Helps control and stabilise the pH of haircare formulations.
May suitThose interested in how product pH affects scalp comfort or hair cuticle behaviour.
Worth knowingIt 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.
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Guar Hydroxypropyltrimonium Chloride Conditioning agentsConditioning polymer
A conditioning polymer that helps smooth hair and improve slip.
May suitThose looking for softer, easier-to-detangle hair.
Worth knowingIt is derived from guar gum and is commonly used to enhance conditioning in shampoos and conditioners. It can also reduce static and improve manageability.
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Sodium Benzoate PreservativesPreservative
Helps protect water-based products from spoilage so they stay usable.
May suitAll products that need a preservative system.
Worth knowingOften paired with other preservatives for broad protection.
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Linalool Fragrance ingredientsFragrance component
A fragrance component found naturally in many flowers and spices.
Worth knowingA 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.
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Citric Acid pH adjusterspH adjuster
Fine-tunes the product pH, which can help the hair surface feel smooth.
May suitMost hair types as part of a balanced formula.
Worth knowingUsually present in small amounts to balance the formula.
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Glycerin HumectantsHumectant
Attracts and holds water to help hair feel hydrated and soft.
May suitDry or dehydrated hair, and many curl and moisture routines.
Worth knowingA very common, well-tolerated humectant used across countless products.
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Benzyl Salicylate Fragrance ingredientsFragrance component
Benzyl Salicylate is a fragrance ingredient used to add a sweet, floral aroma to haircare products.
May suitThose who enjoy subtly floral-scented haircare or are monitoring specific fragrance allergens.
Worth knowingIt is one of the fragrance allergens that must be listed individually on product labels when present above certain levels. Its presence does not indicate product strength or quality, only that it contributes to the overall scent profile.
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Coumarin Fragrance ingredientsFragrance component
Coumarin is a fragrance ingredient that adds a sweet, warm, slightly herbal note to scented formulations.
May suitThose who enjoy subtly sweet, complex fragrance profiles in their haircare products.
Worth knowingIt 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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Isopropyl Alcohol SolventsSolvent
Helps dissolve ingredients and supports quick-drying formulas.
May suitThose using styling products that benefit from fast evaporation, such as sprays.
Worth knowingIt is commonly used at low levels to improve texture and spreadability. It evaporates quickly, leaving minimal residue on the hair.
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Alpha-Isomethyl Ionone Fragrance ingredientsFragrance component
A fragrance component with a soft, violet-like character.
Worth knowingA 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.
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Acid Violet 43 ColourantsColourant
A synthetic violet dye used to add colour or adjust tones in haircare products.
May suitPeople using colour-depositing shampoos, conditioners or masks may find it relevant.
Worth knowingIt is commonly used in purple and violet toning formulas to help reduce the appearance of brassy or yellow tones in lightened hair. It is present in very small amounts to achieve precise colour effects.
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Parfum Fragrance ingredientsFragrance
Gives the product its scent.
May suitPeople who enjoy a scented product.
Worth knowingFragrance preference is personal. Some people prefer fragrance-free formulas by choice.
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Alcohol Denat. SolventsSolvent
A fast-evaporating solvent that helps dissolve ingredients and improve product dry time.
May suitPeople who use styling products that benefit from quick drying or a lightweight feel.
Worth knowingIts 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.
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Aqua SolventsSolvent
The water base that carries and dissolves the other ingredients in most products.
May suitAll hair and skin types.
Worth knowingAlmost always the first ingredient listed in water-based products.
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PEG-40 Hydrogenated Castor Oil Cleansers / surfactantsSolubiliser and emulsifier
Helps blend oils and fragrance into water-based formulas for even texture and performance.
May suitUseful for those who prefer haircare products with clear, consistent textures or evenly dispersed fragrance and oils.
Worth knowingIt is widely used in shampoos, conditioners and styling products to keep formulations stable and smooth. It also offers mild surfactant properties that support product rinse-off.
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Cetrimonium Chloride Conditioning agentsConditioning agent
A conditioning agent that helps smooth and soften the hair while reducing static and tangles.
May suitPeople looking for improved manageability, detangling and smoother-feeling hair.
Worth knowingIt is a commonly used quaternary ammonium compound that helps conditioners spread easily through the hair. It is effective even at low levels, which is why it appears frequently in rinse-off products.
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Inositol Conditioning agentsStrengthening and conditioning
Inositol helps support hair strength and manageability by improving the feel of the hair fibre.
May suitThose looking to improve softness, reduce breakage, or support overall hair resilience.
Worth knowingIt is often included in strengthening or fortifying formulas due to its ability to interact with the hair surface. Inositol is also found naturally in some plant materials.
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Disodium EDTA Chelating agentsChelating agent
Binds to minerals from hard water so the product works consistently and stays stable.
May suitAll products, especially in hard-water areas.
Worth knowingUsed in tiny amounts to keep formulas performing reliably.
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Limonene Fragrance ingredientsFragrance component
A fragrance component that also occurs naturally in many citrus and plant oils.
Worth knowingA 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.
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Linalool Fragrance ingredientsFragrance component
A fragrance component found naturally in many flowers and spices.
Worth knowingA 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.
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Benzyl Salicylate Fragrance ingredientsFragrance component
Benzyl Salicylate is a fragrance ingredient used to add a sweet, floral aroma to haircare products.
May suitThose who enjoy subtly floral-scented haircare or are monitoring specific fragrance allergens.
Worth knowingIt is one of the fragrance allergens that must be listed individually on product labels when present above certain levels. Its presence does not indicate product strength or quality, only that it contributes to the overall scent profile.
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Benzyl Alcohol PreservativesPreservative
Helps preserve formulations and can also act as a solvent or light fragrance component.
May suitThose interested in understanding preservative systems or identifying potential fragrance allergens.
Worth knowingBenzyl Alcohol is commonly used in professional haircare to support product stability and texture. It can also naturally occur in some essential oils.
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Citronellol Fragrance ingredientsFragrance component
A fragrance component with a soft floral, rose-like character.
Worth knowingA 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.
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Alpha-Isomethyl Ionone Fragrance ingredientsFragrance component
A fragrance component with a soft, violet-like character.
Worth knowingA 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.
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Geraniol Fragrance ingredientsFragrance component
Geraniol is a fragrant compound that adds a light floral note to haircare products.
May suitThose who enjoy floral-scented hair products or are checking for specific fragrance components.
Worth knowingIt is naturally found in essential oils such as rose and geranium and is commonly used to enhance scent profiles. It must be listed on labels when present above certain trace levels.
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Sodium Citrate pH adjusterspH adjuster
Sodium Citrate helps maintain or adjust the pH of haircare formulas.
May suitAnyone using products designed to stay within a specific pH range, such as colour‑treated or chemically treated hair.
Worth knowingIt 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.
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Citral Fragrance ingredientsFragrance component
Citral is a fragrance ingredient used to provide a fresh, citrus-like scent.
May suitThose who enjoy citrus-style fragrances or want products with a fresh aromatic profile.
Worth knowingCitral is naturally present in several essential oils and is listed on labels because it is a recognised fragrance allergen. Only small amounts are typically used to adjust or enhance a product’s scent.
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Parfum Fragrance ingredientsFragrance
Gives the product its scent.
May suitPeople who enjoy a scented product.
Worth knowingFragrance preference is personal. Some people prefer fragrance-free formulas by choice.
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Resveratrol Botanical extractsAntioxidant
Provides antioxidant support to help protect hair and scalp from environmental stressors.
May suitThose looking for added protection against colour fade or environmental exposure.
Worth knowingResveratrol is a polyphenol commonly derived from grapes and other plants and is valued for its stability and antioxidant properties in cosmetic formulas.