Nº.6 smooths, conditions and strengthens without adding hold or excess weight. A highly concentrated formula for all hair types including dry, grey, colored and chemically treated hair. Good for textures from coily to fine. Redesigned in an easy dispensing, airless pump to give your hair every last dose of definition and smoothness.

Where: Apply product from mid-lengths to the ends. Start with 1/2 pump for shoulder-length hair. Use more for longer, thicker hair. Less for fine or short hair.

When: Apply to wet hair and air dry for lived in texture. Apply sparingly to dry hair to tame frizz and fly-aways.

OLAPLEX products are thoroughly tested in-house and by independent third-party laboratories for safety and efficacy. This product testing includes the industry standard Human Repeat Insult Patch Test (HRIPT), which tests for skin irritation or sensitivity.  All of OLAPLEX products passed the HRIPT, meaning the products show no signs of causing irritation, inflammation, or sensitivity.