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K18 fundamentals
/ featured, science

how does AstroLift™ volume spray work?

 The exciting science behind the weightless, lasting lift all hair types are loving.
/ hair science, science

How Intentional Formulation = Targeted Results in Fewer Steps

 Every K18 ingredient serves a specific purpose to benefit hair—without fillers or fluff—so your routine does more with less.
/ hair science, science

What Are Fusion Proteins?

 And how K18 uses them to create never-before-seen benefits optimized for your hair’s biology.
/ hair science, science

Is Hair Dead?

 Biologically, yes. Chemically, no.
/ hair science, science

Science Class 18: The science behind UV damage

 You know how chemical services like bleaching, coloring, or heat styling can damage hair? Exposure to the environment can hurt hair the exact same ...
/ hair science, science

Science Class 17: The science behind heat damage

 Let’s talk about all things heat styling. Maybe your services involve hot tools—like a straightener, curling iron, or blow dryer. But did you know ...
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