L'Oréal Frizz-Defy formulas are infused with marula oil as the active oil for frizz control.

L'Oréal Frizz-Defy is designed for frizzy hair and specifically targets frizz control for color-treated hair.

L'Oréal Frizz-Defy advertises color protection along with up to 24 hours of humidity and frizz resistance. The formulas are labeled sulfate-free and paraben-free, which is intended to make them gentler on color-treated hair.

L'Oréal Frizz-Defy has a fresh floral fragrance centered on magnolia, with supporting notes of sandalwood, lily-of-the-valley, amber, and musk.

The line advertises humidity and frizz resistance for up to 24 hours.

Shampoo: apply to wet hair, work into a thick lather, then rinse thoroughly. Conditioner: apply to wet hair, massage gently, leave on for 1–2 minutes, and rinse.

Product labels recommend daily use.

Customers commonly report effective frizz control and smoothing, increased shine, good foaming, a pleasant scent, and positive notes about color preservation and value.