Think of a deep conditioner as going one step further than a regular conditioner. “All hair types are prone to this, but we especially see it in those with color- or chemically-treated hair and naturally dry, coarse, or curly textures,” he adds. “When hair is dry, it can become brittle and break due to moisture loss, which causes it to lose its elasticity,” McLaren says. It’s important for those in colder climates to add moisture to the hair, similarly to following different skincare routines in different seasons, says Howard McLaren, co-founder and creative director of R+Co. “Deep conditioner goes the extra mile and nourishes hair long after you step out of the shower to protect it from dryness and static,” he notes. In addition, because the hair is constantly losing hydration due to dryness, Kusero says it’s necessary to replenish it with extra moisture. “Cold air slightly lifts the hair cuticle, so moisture doesn’t stay locked in, and as a result, the hair gets thicker, frizzier, and more brittle,” he says. Winter is synonymous with fly-aways, static, frizz, breakage, and even dandruff because the dry air steals moisture from the hair fiber, explains Chase Kusero, co-founder of IGK Hair Care. Jamila Powell is the founder of Naturally Drenched and owner of Maggie Rose Salon.

Good deep conditioner