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K18 AstroLift Reparative Volume Spray is a lightweight mist that boosts lift while repairing damage.
This clever styling spray uses K18’s peptide technology to help reconnect broken keratin chains inside the hair, so strands feel stronger instead of stiff. With every use, it builds soft, flexible volume from root to tip, without the crunchy, sticky feel of traditional volumisers.
The fine mist feels weightless on the hair and dries to a satin, touchable finish that still moves naturally. It’s ideal for flat, fragile, or chemically treated hair that needs a lift without extra stress.
Use it before blow-drying or heat styling, or as a prep step for fuller, longer-lasting styles. Hair looks more airy, feels supported, and is easier to shape.
How To Use K18 AstroLift Reparative Volume Spray
- Start on clean, towel-dried hair.
- Shake the bottle well before use.
- Section hair and spray evenly from roots to mid-lengths.
- Comb or brush through to distribute.
- Blow-dry, lifting at the roots for extra volume.
- Use before other styling products or heat tools.
K18 AstroLift Reparative Volume Spray Ingredients
Water (Aqua/Eau), SD Alcohol 40-B (Alcohol Denat.), Hydrolyzed Wheat Protein, Hydrolyzed Wheat Starch, Propanediol, Glycerin, Isopentyldiol, Polysilicone-29, Polyquaternium-11, Polyquaternium-55, VP/VA Copolymer, Acrylates Copolymer, PEG-40 Hydrogenated Castor Oil, Cetrimonium Chloride, Citric Acid, Aminomethyl Propanol, Sodium Benzoate, Potassium Sorbate, Phenoxyethanol, Fragrance (Parfum), Limonene, Linalool, Citral, Coumarin, K18Peptide™ (Sh-Oligopeptide-78).
Note: Please refer to bottle for full ingredients.
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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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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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Hydrolyzed Wheat Protein Proteins and amino acidsProtein
A plant-derived protein that helps smooth and support the hair surface.
May suitHair wanting added body, smoothness or temporary strength.
Worth knowingA common protein in repair and volumising formulas.
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Hydrolysed Wheat Starch Proteins and amino acidsStrengthening and conditioning agent
A hydrolysed plant-derived starch that helps condition and lightly strengthen the hair.
May suitThose looking for added softness, light smoothing or gentle strengthening benefits.
Worth knowingIts smaller molecular size allows it to coat hair more easily than regular starch, offering a softening effect without heaviness. It is commonly used in both rinse-off and leave-in formulations.
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Propanediol HumectantsHydrating humectant
Helps attract and hold moisture in hair and supports a smooth, conditioned feel.
May suitThose wanting lightweight hydration without heaviness.
Worth knowingIt is often used as a gentle alternative to glycol-based humectants and can also help improve product texture and absorption.
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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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Isopentyldiol HumectantsHumectant and solubiliser
Helps attract and hold moisture while improving the spreadability of a formula.
May suitThose looking for hydration‑supporting formulas or smoother product application.
Worth knowingIt is often used to support texture, boost moisture retention and help dissolve other ingredients. It is valued for being gentle and versatile in many modern formulations.
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Polysilicone-29 SiliconesFilm-forming silicone
A film-forming silicone that helps smooth hair and enhance shine.
May suitThose looking for frizz control, heat protection, or longer-lasting styling results.
Worth knowingIt forms a lightweight coating that can improve manageability and reduce moisture loss. Silicones vary widely, and this one is designed to feel light and flexible on the hair.
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Polyquaternium-11 Conditioning agentsFilm-forming conditioner
A film-forming polymer that helps smooth, condition and lightly hold the hair.
May suitPeople looking for improved manageability, frizz control or soft styling hold.
Worth knowingIt is commonly used in both shampoos and styling products because it enhances slip and helps hair feel smoother. It can also support curl definition and reduce static.
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Polyquaternium-55 Conditioning agentsConditioning polymer
A film-forming conditioning polymer used to improve softness, smoothness and manageability.
May suitThose looking for enhanced frizz control, curl definition or improved hold without stiffness.
Worth knowingIt forms a light, flexible film on the hair that helps maintain style while reducing flyaways. It is commonly used in styling and conditioning formulas for added performance.
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VP/VA Copolymer Thickeners and stabilisersFilm-forming styling polymer
A film-forming polymer that helps provide hold, texture and style retention.
May suitPeople looking for longer-lasting hold or improved definition in styling products.
Worth knowingIt is widely used in gels, mousses and sprays because it creates flexible, brushable hold. It can also help reduce frizz by forming a lightweight coating on the hair.
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Acrylates Copolymer Thickeners and stabilisersFilm-forming polymer
Acrylates Copolymer helps form a lightweight film that supports hold, texture and product stability.
May suitPeople looking for enhanced styling hold or frizz control.
Worth knowingIt is widely used in styling products to help shape and set the hair without feeling heavy. It also contributes to product consistency and spreadability.
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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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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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Aminomethyl Propanol pH adjusterspH adjuster
Helps adjust and stabilise the pH of haircare formulations.
May suitThose interested in how product pH affects hair and scalp feel may find its presence relevant.
Worth knowingIt is commonly used at low levels to help formulas stay effective and consistent. It does not act on the hair directly but supports the overall product performance.
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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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Potassium Sorbate PreservativesPreservative
Helps keep haircare formulas stable by preventing the growth of microbes.
May suitAnyone who uses water-based products that benefit from reliable preservation.
Worth knowingIt 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.
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Phenoxyethanol PreservativesPreservative
Helps keep the product stable and pleasant to use after opening.
May suitAll products that need protecting from spoilage.
Worth knowingA very common, well-studied preservative used at low levels.
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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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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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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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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.
Questions and Answers
Reviews: K18 AstroLift Reparative Volume Spray
Written by Sally Fricker On 13/04/2025
1 people found this helpful