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Its pH-optimized system reduces excess cuticle swelling during washing—helping to prevent frizz, preserve color, and enhance shine—while a scalp microbiome-friendly formula and plant-derived surfactants deliver a powerful yet gentle clean suitable for frequent use. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003cspan class=\"ms-1 inline-flex max-w-full items-center relative top-[-0.094rem] animate-[show_150ms_ease-in]\" data-testid=\"webpage-citation-pill\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"K18 BIOMIMETIC HAIRSCIENCE","offers":[{"title":"Default Title","offer_id":42483092619382,"sku":null,"price":40.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0273\/9444\/1334\/files\/381.png?v=1757007426"},{"product_id":"k18-biomimetic-hairscience-astrolift-reparative-volume-spray","title":"K18 Biomimetic Hairscience AstroLift Reparative Volume Spray","description":"\u003cp data-start=\"70\" data-end=\"709\"\u003eAstroLift™ is a lightweight, buildable volume spray formulated for salon-grade finishing to reverse \u003cstrong data-start=\"170\" data-end=\"197\"\u003ebounce-depleting damage\u003c\/strong\u003e and deliver touchable lift from roots to ends. Powered by \u003cstrong data-start=\"256\" data-end=\"271\"\u003eK18PEPTIDE™\u003c\/strong\u003e, the reparative formula thickens hair fibers and creates space between strands for a fuller look and feel—providing flexible, humidity-resistant volume for up to \u003cstrong data-start=\"434\" data-end=\"444\"\u003e2 days\u003c\/strong\u003e on towel-dried or dry hair without stickiness or crunch. Best suited for fine, fragile, aging or breakage-prone hair, the non-sticky spray works with or without heat and can be layered as needed to boost bounce between washes.\u003c\/p\u003e","brand":"K18 BIOMIMETIC HAIRSCIENCE","offers":[{"title":"Default Title","offer_id":42483106513014,"sku":null,"price":55.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0273\/9444\/1334\/files\/382.png?v=1757007477"},{"product_id":"k18-biomimetic-hairscience-professional-leave-in-molecular-repair-mask-5-fl-oz","title":"K18 Biomimetic Hairscience Professional Leave-In Molecular Repair Mask 5 fl. oz.","description":"\u003cp data-end=\"520\" data-start=\"41\"\u003e\u003cstrong data-end=\"90\" data-start=\"41\"\u003eFull-Size Leave-In Molecular Repair Hair Mask\u003c\/strong\u003e is a salon-grade, leave-in treatment that repairs hair on a molecular level in just \u003cstrong data-end=\"188\" data-start=\"175\"\u003e4 minutes\u003c\/strong\u003e. Powered by the biotech-developed \u003cstrong data-end=\"238\" data-start=\"223\"\u003eK18PEPTIDE™\u003c\/strong\u003e, the formula reconnects broken polypeptide chains (and as a result also reconnects disulfide bonds) to restore strength, softness, smoothness and bounce—delivering immediate and lasting reparative results after chemical, color and heat damage.\u003c\/p\u003e","brand":"K18 BIOMIMETIC HAIRSCIENCE","offers":[{"title":"Default Title","offer_id":42483117326454,"sku":null,"price":132.0,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0273\/9444\/1334\/files\/383.png?v=1757007516"},{"product_id":"k18-biomimetic-hairscience-professional-leave-in-molecular-repair-mask-1-7-fl-oz","title":"K18 Biomimetic Hairscience Professional Leave-In Molecular Repair Mask 1.7 fl. oz","description":"\u003cp data-end=\"554\" data-start=\"71\"\u003eThis salon-grade, leave-in treatment repairs hair on a molecular level in just \u003cstrong data-end=\"213\" data-start=\"200\"\u003e4 minutes\u003c\/strong\u003e. Powered by the biotech-developed \u003cstrong data-end=\"263\" data-start=\"248\"\u003eK18PEPTIDE™\u003c\/strong\u003e, the formula reconnects broken polypeptide chains (and, as a result, disulfide bonds) to restore strength, softness, smoothness and bounce — delivering immediate and lasting reparative results for damage from bleach + color, chemical services and heat.\u003c\/p\u003e","brand":"K18 BIOMIMETIC HAIRSCIENCE","offers":[{"title":"Default Title","offer_id":42483139674230,"sku":null,"price":88.0,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0273\/9444\/1334\/files\/384.png?v=1757007559"},{"product_id":"k18-biomimetic-hairscience-professional-leave-in-molecular-repair-mask-0-5-fl-oz","title":"K18 Biomimetic Hairscience Professional Leave-In Molecular Repair Mask 0.5 fl. oz.","description":"\u003cp data-end=\"537\" data-start=\"41\"\u003eFull-Size \u003cstrong data-end=\"90\" data-start=\"51\"\u003eLeave-In Molecular Repair Hair Mask\u003c\/strong\u003e is a salon-grade, leave-in treatment that repairs hair on a molecular level in just \u003cstrong data-end=\"188\" data-start=\"175\"\u003e4 minutes\u003c\/strong\u003e. 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The formula uses translucent, porous microbeads to absorb excess oil and sweat without starchy buildup or visible white cast, while a biotech-derived Mediterranean microalgae (Tetraselmis) helps rebalance scalp sebum over time — delivering a clean, lightweight refresh that won’t disturb finished styles and is appropriate for all hair types and textures, including protective styles and extensions. \u003cmeta charset=\"UTF-8\"\u003e\u003c\/p\u003e","brand":"K18 BIOMIMETIC HAIRSCIENCE","offers":[{"title":"Default Title","offer_id":42485427404918,"sku":null,"price":57.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0273\/9444\/1334\/files\/386.png?v=1757007621"},{"product_id":"k18-biomimetic-hairscience-heat-bounce-conditioning-heat-protectant-8-fl-oz","title":"K18 Biomimetic Hairscience Heat Bounce Conditioning Heat Protectant 8 fl. oz.","description":"\u003cp data-start=\"46\" data-end=\"761\"\u003eHeatBounce Conditioning Heat Protectant is a salon-grade, leave-in thermal protector and styler formulated to detangle, soften and deliver deeper heat protection from the cuticle into the cortex. 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