K18 Hair Care Blog

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Mar 19, 2026 /featured, products

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what does oxidation do to your blonde? How it happens, why it matters + what could be fading your color faster (plus, what you can do about...

Meet TripleBright Oxidation Defense Purple Shampoo

Mar 27, 2026 / featured, products

Meet TripleBright Oxidation Defense Purple Shampoo

A breakthrough for brighter, longer-lasting blonde.

Why You Can’t Fake Healthy Hair (But You Can Biohack It)

Mar 24, 2026 / people

Why You Can’t Fake Healthy Hair (But You Can Biohack It)

How K18 global ambassador, stylist + hair longevity expert Tom Smith is rewriting the future of styling and the definition of hair health itself.

what does oxidation do to your blonde?

Mar 19, 2026 / featured, products

what does oxidation do to your blonde?

How it happens, why it matters + what could be fading your color faster (plus, what you can do about it!)

what does it mean to “click in” to hair’s keratin structure?

Mar 12, 2026 / hair science

what does it mean to “click in” to hair’s keratin structure?

Everything you need to know, straight from K18’s Senior Hair Fiber and Measurement Scientist.

helping cancer patients keep their hair + sense of self

Mar 12, 2026 / people

helping cancer patients keep their hair + sense of self

Why K18 is excited to donate $100,000 to HairToStay, the non-profit that took scalp cooling from an idea on a napkin to a national movement.

Set A GUINNESS WORLD RECORDS® Title With K18

Feb 17, 2026 / people

Set A GUINNESS WORLD RECORDS® Title With K18

Make hair history and help set the hair flip world record on February 19, 2026.