Low pH vs “pH balanced”: What your hair really needs

If you’ve browsed hair care products, you’ve probably seen the phrase “pH balanced” splashed across labels. It sounds scientific and reassuring, like your shampoo and conditioner are specially calibrated for your hair’s health. 

But here’s the catch: “pH balanced” doesn’t actually mean much unless you know the specific pH range — heck, even a swimming pool or fish tank has a pH. When it comes to healthy hair and scalp, the magic lies in appropriate pH.

Let’s break it down.

What to know about pH ranges

The pH scale ranges from 0 to 14. Your scalp and hair naturally sit in a slightly acidic range — about 4.5 to 5.5 on the pH scale. This acidity helps keep the cuticle (the outer layer of your hair) closed, smooth, and strong. It also helps maintain the scalp’s protective barrier, which defends against dryness, irritation, and microbial overgrowth.

Products that are too alkaline (higher pH) can raise the cuticle, making your hair feel rough, frizzy, and more prone to breakage. They can also throw off your scalp’s microbiome, leading to itchiness or flaking. 

Seek out products in the appropriate pH range

When a product claims to be “pH balanced,” it could be anywhere from 0 to 14. And that’s a wide range. The term isn’t mandated, so brands can use it even if their product isn’t truly in the optimal acidic zone.

That’s why low/appropriate pH matters. Products formulated specifically within the 4–5.5 range help maintain the natural environment of your scalp and hair. They help seal the cuticle, preserve moisture, and support overall hair strength, especially important for curly, coily, fine-textured, and color-treated hair, which tends to be more delicate.

In short, don’t be fooled by vague claims. “pH balanced” might sound good, but the benefit is in the numbers that actually support your scalp and hair health.

Choose ROgHA® for appropriate pH

If you're looking for products that truly support your scalp and hair's natural environment, check out ROgHA® — formulated with a low/appropriate pH to help your hair — and scalp — thrive.