Kaolin
White clay based on hydrated aluminosilicate. Gently adsorbs excess sebum and impurities, so it appears in masks for oily skin.
Evidence by route
Topical application
Adsorbing and mattifying action is confirmed by dermatology clinic practice. Kaolin is milder than bentonite and suitable for regular oily skin care.
How to read tiers A–F
- CWeak evidence. In vitro data, open-label studies, or expert consensus
Tolerability and safety
- Irritation potential
- Low
- Allergen risk
- Low
- Pregnancy
- Safe
- Suitable for
- Oily, Combination
- Use with caution
- Dry, Sensitive
About this ingredient
Kaolin (China Clay) is a natural white clay based on hydrated aluminum silicate (Al₂Si₂O₅(OH)₄). Forms from feldspar weathering. Used in cosmetics since antiquity (Ancient Egypt, China), in pharmacy as an absorbent in diarrhea. Where applied. Face masks, cleansers, deodorants, loose powders, mineral sunscreens (5-50%). Gently absorbs excess sebum, debris, and toxins from the skin surface. In Spain in Mercadona Deliplus masks, Sesderma Sebovalis, Avène Cleanance Mask, Babaria BB creams. Evidence base. Direct clinical RCTs on kaolin in cosmetics are few; studies show absorption properties and reduced skin shine in instrumental tests (sebumeter). Marketing often claims "detox" and "toxin removal" – these claims have no clinical support. Safety. CIR rated kaolin safe at cosmetic concentrations (2003, re-evaluated 2018). EU SCCS has set no restrictions. Irritation is rare; in patients with very dry skin kaolin masks may worsen tightness – moisturize afterwards. Pregnancy and lactation – safe topically. Suitable for oily and combination skin. With dry and sensitive – use with caution, do not leave masks on for long.
Frequently asked questions
Is Kaolin safe during pregnancy?
Kaolin is considered safe during pregnancy at typical cosmetic concentrations. Systemic absorption through the skin is minimal.
What skin types is Kaolin for?
Kaolin suits: oily, combination. Use with caution in: dry, sensitive.
What is Kaolin and what does it do in cosmetics?
White clay based on hydrated aluminosilicate.
What's the INCI name for Kaolin?
The INCI name is Kaolin. It may also appear as: China Clay.
See Kaolin in a product composition right on the store page
The Evigrade extension adds an evidence panel to iHerb, Sephora, Druni and 12 more stores. This ingredient and every other one in the product show evidence-tier, allergen risk and pregnancy/lactation flags at a glance.
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