Does Hard Water Contribute to Dandruff?

Yes, hard water can give you dandruff. The magnesium and calcium minerals present in hard water leave deposits on the scalp, disrupting its natural pH and leading to irritation and dryness. This irritation can cause the skin cells on the scalp to flake off more rapidly.

Hard water is water with excess minerals, namely magnesium and calcium. The USGS categorizes hard water according to its mineral concentration.

Though we often forget this, we have skin on our heads beneath our hair (i.e. the scalp). Similarly to the skin elsewhere on our bodies, scalp health is affected by a variety of factors, including our diets, environment, hygiene and care habits, and genetics.

Hard water leads to dandruff by leaving mineral deposits on the scalp, causing it to dry out.

How Hard Water Causes Dandruff

When hard water is used with soap, the calcium and magnesium minerals bind to the soap’s surfactants (the ingredients that allow the soap to effectively clean), preventing these lathering agents from working properly.

Hard Water’s Effect On Hair Products

Your Water Hardness Your Showering Frequency Your Skin Sensitivity The Hair Products You Use

Factors That Affect Dandruff Caused By Hard Water

Use A Deep Moisturizing Conditioner Or Hair Mask While a hair mask or conditioner won’t prevent hard water deposits, it’ll help support healthy hair and reduce issues with dead skin cells, itchiness, and irritation of the scalp.

How To Treat Dandruff Caused By Hard Water

A clarifying shampoo is a step up from the usual shampoo formula. It has more intense cleaning properties and is more capable of stripping dirt, oils, and unwanted debris (including hardness minerals) from the hair and scalp.

Use A Clarifying Shampoo

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