No.5 Leave-In is a moisturizing, reparative leave-in that delivers instant results and long-lasting protection from root to tip. Formulated with bond-building technology and a high-adhesion sealing complex, it seals split ends, strengthens fragile strands, and restores softness and shine.

Clinically shown to improve hair health: up to 88% split-end sealing, 12x more moisture, and 81% less breakage after one use. Lightweight and non-greasy, it also provides heat protection up to 450°F, making it ideal for daily styling. Safe for color-treated hair and vegan-friendly, this leave-in transforms hair to feel healthier, stronger, and more manageable.

Key Benefits:

• Seals split ends and strengthens hair

• Deeply moisturizes and improves softness

• Reduces breakage and restores manageability

• Heat protection up to 450°F

• Vegan and color-safe