Cleansing vs. Clarifying Shampoo: What Sets Them Apart—and Why It Matters for Your Hair

6/25/2025

In the ever-evolving world of beauty, few rituals are more deeply ingrained than hair washing. But if you’re still using the same shampoo every wash, you may be overlooking a crucial distinction that top hairstylists and dermatologists swear by: cleansing versus clarifying shampoos.

While the two may sound interchangeable, their roles in your haircare routine couldn’t be more different. Much like a well-tailored skincare regimen separates day from night, your hair needs different types of attention—whether it’s a daily refresh or a deeper detox.

Cleansing shampoos are your go-to daily staples. Their job is simple but essential: to remove oil, sweat, and minimal product buildup without disrupting your scalp’s delicate microbiome or moisture barrier.

These formulas are typically sulfate-free, enriched with hydrating ingredients like glycerin or ceramides, and designed to maintain—not strip—natural oils.

“Think of cleansing shampoos as the facial cleanser of your hair routine—something gentle enough for regular use but still effective at maintaining balance,” says NYC-based trichologist Anabel Kingsley.

Clarifying shampoos take things several steps further. These formulas are engineered to break down stubborn product buildup, mineral residue from hard water, chlorine, and sebum overload. The result? Fresher, lighter, and more voluminous hair.

But while clarifying shampoos can be a game-changer, they’re not meant for everyday use.

“Using a clarifying shampoo is like exfoliating your skin—it’s powerful, but overdoing it can cause more harm than good,” says Dr. Dendy Engelman, board-certified dermatologist.

When to Use Which

Cleansing shampoo: Use 2–5 times per week depending on hair type.

Clarifying shampoo: Use once every 1–2 weeks, or as needed.

If your hair feels dull, heavy, or products stop working like they used to—it’s time for a clarifying session.

Cleansing Shampoos

Clarifying Shampoos