Ships from California
Description
Ingredients
Product Details
What it is:
Protects and repairs damaged hair, split ends and frizz by re-linking broken bonds. A highly-moisturizing, reparative shampoo that leaves hair easy to manage, shiny and healthier with each use.
What it does:
This shampoo repairs and protects hair from everyday stresses—including damaged hair, split ends, and frizz—by re-linking broken bonds. N°4 is color-safe and proven to reduce breakage and strengthen all types of hair.
What else you need to know:
- Paraben-Free
- Sulfate-Free
- Phthalate-Free
*Ingredients may vary slightly due to formula updates by brands. Please consult packaging for most accurate list of ingredients
Product Recommendations
Frequently Asked Questions
Olaplex No. 4 is formulated with the brand's patented Bond-Building Complex™ technology, which works to restore broken chemical bonds in hair damaged by bleaching, coloring, heat styling, or chemical treatments. The shampoo gently cleanses while helping to repair and strengthen hair structure from within, resulting in smoother, healthier-looking strands over time with continued use.
Yes, Olaplex No. 4 is specifically designed for color-treated and chemically processed hair. It's sulfate-free and formulated to be gentle on delicate, damaged hair while actively working to repair bonds weakened by coloring and bleaching treatments. It helps extend color vibrancy and maintains hair integrity between professional treatments.
Key ingredients include the proprietary Bond-Building Complex™, water, coconut oil-derived cleansing agents, and conditioning botanicals. The formula is free from sulfates, parabens, and silicones, making it a cleaner choice for damaged hair. It's also vegan and cruelty-free, with a focus on transparency in its ingredient sourcing.








