A leave-in reparative styling creme eliminates frizz, hydrates & protects all hair types.This concentrated leave-in smoothing cream is excellent for all hair types including colored and chemically treated hair. OLAPLEX N°6 strengthens, hydrates, moisturizes and speeds up blow dry times while smoothing. Eliminate frizz and flyaways for up to 72 hours. **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. **