Curls are structurally unique–more bonds, more bends, more prone to breakage. This Nº4 shampoo for coily, curly, and wavy hair delivers multi-action care to instantly strengthen, define, hydrate and target your hair’s unique combination of needs, no matter your pattern.
Powered by patented 3D Bond Shaper Technology and Hydra-Define Technology, Nº4 CURL works on a molecular level to instantly strengthen and infinitely define coils and curls, cut frizz in half, and help protect length over time. The silky, creme-gel formula provides essential slip to prevent tangles. It removes buildup without stripping for light, clean hair between wash days for 7-day hydrated curls. For all coils, curls, and waves, and all porosity levels. Trichologist Approved. Stylist & Dermatologist Tested. Vegan. Color-safe and suitable for chemically treated hair. Tested on coils and curls.
Benefits:
- Instantly strong
- Infinitely defined
- 7-day hydration
- Reduces breakage and protects length
- Cuts frizz in half, even in high humidity
- Instantly easier detangling and static control
Key Ingredients:
- Patented 3D Bond Shaper Technology Builds disulfide bonds from 6 points in multiple directions to repair, strengthen, and define coils and curls.
- Hydra-Define Technology Positively charged hyaluronic acid complex neutralizes points of damage, sealing the cuticle to lock in smoothing hydration and block frizz-forming humidity.
- Natural Oil Blend Nourishing Avocado and Sunflower oils impart moisture, softness, and definition.
- Free of Protein, Silicones, Sulfates, SLS/SLES, Phthalates, Phosphates, MIC/MIT, and Paraben.
How To Use:
- Apply to wet hair. Lather. Rinse.
- Follow with N°.5CURL BOND SHAPER CURL HYDRATING CONDITIONER or OLAPLEX mask of choice.
- Avoid contact with eyes.


