Curls are structurally unique–more bonds, more bends, more prone to breakage. This 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™, N°.4curl 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.

Key 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.

**Based on a consumer study of 75 participants.

When N°.4curl &  N°.5curl are used as a system.