Bentonite Clay
BEN-toh-nite CLAY
What Is Bentonite Clay?
A natural volcanic ash clay with strong adsorptive properties. It swells when mixed with water and draws out impurities, toxins, and excess oils from hair and scalp.
Source: Volcanic ash deposits
Origin: Natural
Also known as: Montmorillonite Clay, Volcanic Ash Clay
What Does Bentonite Clay Do to Your Hair?
Deeply cleanses hair and scalp by adsorbing (binding to) impurities, excess oils, and product buildup. Adds volume and body to limp hair. Provides mineral nourishment including calcium, magnesium, and silica.
Best For
Oily hair, curly hair, natural hair (4A-4C), buildup-prone hair
Not Recommended For
Dry hair, color-treated hair, fine hair (can be rough)
Concentration Matters
Used as a mask: 100% with liquid; In products: 2-10%
Hair Type Compatibility
Method Compatibility
Safety & Regulation
Generally safe for topical use. Can be very drying if used too frequently. Should be mixed with moisturizing ingredients like aloe vera or apple cider vinegar. Never use metal utensils with bentonite clay.
FDA Status: Generally Recognized As Safe
FDA considers safe for cosmetic use.
EWG Score: 2/10
HairAide Verdict
Excellent for a deep cleanse and detox, especially popular in the natural hair community. Use no more than once or twice a month and always follow with deep conditioning. A powerful buildup remover.
Products That Contain Bentonite Clay
Clay masks, clarifying treatments, co-washes, detox treatments
Alternatives to Bentonite Clay
If you want to avoid Bentonite Clay, look for products with these ingredients instead:
Kaolin Clay, Rhassoul Clay, activated charcoal
Frequently Asked Questions
Yes, Bentonite Clay has a safety rating of 7/10 and is generally considered safe for use in hair products. Generally safe for topical use. Can be very drying if used too frequently. Should be mixed with moisturizing ingredients like aloe vera or apple cider vinegar. Never use metal utensils with bentonite clay.
Bentonite Clay is CG-method approved and is generally considered safe for curly hair.
Yes, Bentonite Clay is approved for the Curly Girl method.
Some alternatives to Bentonite Clay include: Kaolin Clay, Rhassoul Clay, activated charcoal
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