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...
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/ hair stories

What Hair Means for People Battling + Surviving Breast Cancer

 For many undergoing cancer treatment, hair loss is inevitable. PBA, HairtoStay, and Look Good Feel Better are working against it. 
/ hair science

The “Why” Behind K18

 Your starter guide to K18’s biology-first haircare, inspired by nature, designed for you.
/ people, video

How To Grow Healthy Hair, Featuring Griffin

 See how our Video Editor, Griffin, uses K18 to reach his curly–coily hair growth goals.
/ people

How Breaking Latinx Stereotypes Empowered Us To Love Our Hair

 PRO stylists Rosi Mercedes + Claudia Franco share the impact of hair in their Latinx cultures.
/ hair science

How Synthetic Biology Works Better for Hair Repair + the Environment

 Dive into how synthetic biology makes K18 more effective for damage repair, and better for the planet.
/ business

How to Diagnose Your Client’s Hair Damage

 The starter guide to diagnosing and repairing your client’s damage.
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