Clarifying Shampoo

A: Clarifying shampoo is a deep-cleansing hair product designed to remove buildup that regular shampoos often can't tackle. While everyday shampoos are meant for gentle cleansing and conditioning, clarifying shampoos are formulated with stronger surfactants and chelating agents that break down and wash away stubborn residue from the hair and scalp.
How It Works
Clarifying shampoos use more potent cleansing agents than regular formulas. They often contain higher levels of sulfates such as sodium lauryl sulfate or ammonium lauryl sulfate, which are particularly effective at cutting through oils and residue. Many also include chelating agents like EDTA (ethylenediaminetetraacetic acid), which bind to minerals and metals so they can be rinsed away more easily.
These shampoos typically have a slightly higher pH level, which helps lift the hair cuticle to allow for a more thorough cleanse. Some formulations also include mild acids, such as citric acid, to help dissolve mineral buildup and restore brightness to the hair.
When and How to Use It
Clarifying shampoos can bring back your hair’s natural bounce, shine, and softness, especially if you use a lot of styling products, live in an area with hard water, or swim regularly. Even color-treated hair can look more vibrant after clarifying, since buildup can dull its appearance. By giving your hair a fresh start, it also helps other hair products work more effectively.
However, clarifying shampoo should be used in moderation. Overuse can strip away the natural oils that protect your hair, leading to dryness, frizz, or even damage - particularly for those with chemically treated, very dry, or fragile hair. In such cases, it’s best to limit use and always follow up with a rich conditioner or deep treatment.
To use it, apply to wet hair, lather thoroughly, and let it sit for a minute or two before rinsing well. The key is to find the right frequency for your hair type - whether that’s once a week, once a month, or somewhere in between - so you get all the benefits without overdoing it.

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See also:
How shampoo works
Is it a good idea to buy shampoos that are formulated for specific hair types?
Remove product build-up without using a clarifying shampoo