Halloysite: What Is It, Cosmetic Uses, Benefits & Side Effects

Curious about this ingredient? In this article we're explaining exactly what it is and why it's used within cosmetic formulations.
Updated on: June 27, 2025
Share:
Inside this article:

We verify all information on this page using publicly available nomenclature standards from The Personal Care Products Council (PCPC), the European Commission's CosIng database and documentation provided directly by ingredient manufacturers. Our analysis is based on technical data from these sources to ensure accuracy and reliability.

What Is Halloysite?

Halloysite is a naturally occurring clay mineral that belongs to the same family as kaolin. Chemically it is an aluminosilicate made up of aluminum, silicon and oxygen along with water that is held in its tiny tube-shaped particles. These hollow tubes give halloysite a large surface area, which is why it is so good at soaking things up.

The mineral was first noted in the 19th century when it was used in pottery and porcelain. As skin care scientists looked for gentle, plant-free ways to control oil and improve texture they began testing refined clays like halloysite. Its strong absorbing power and smooth feel quickly earned it a spot in cosmetic labs.

Most cosmetic-grade halloysite starts in open-pit mines. The raw clay is washed to remove grit, then milled into a fine powder. Extra steps like magnetic filtering and high-speed centrifuging take out iron and other trace metals, leaving a pure white powder that meets cosmetic safety rules.

You will usually see halloysite in rinse-off masks, mattifying face powders, liquid foundations, primers and leave-on lotions aimed at oily or combination skin. Some brands also add it to spot treatments to calm shine through the day.

Halloysite’s Cosmetic Benefits/Uses

Below are the main ways halloysite improves a formula and, in turn, your routine:

  • Absorbent – Its hollow tubes act like tiny sponges that pull in excess oil, sweat and dirt which helps keep skin looking fresh and less shiny
  • Anti-Sebum – By trapping oil at the surface it slows the look of grease build-up so makeup lasts longer and pores appear smaller
  • Colorant – In its refined white form it can lighten or soften the tone of a powder or cream without using synthetic dyes
  • Viscosity Controlling – The fine particles thicken water-based formulas just enough to stop them from running while still feeling light on the skin

Who Can Use Halloysite

Halloysite works best for oily, combination and normal skin because its strong oil-absorbing action keeps shine down without feeling heavy. People with sensitive or acne-prone skin usually tolerate it well since the mineral is inert and fragrance-free. Those with very dry or compromised skin barriers might find it too drying in high amounts, so they may want to use it only in rinse-off masks or avoid it altogether.

Because halloysite is a naturally mined mineral that contains no animal-derived ingredients, it is suitable for both vegans and vegetarians. Most suppliers also confirm it does not rely on animal testing, which aligns with cruelty-free standards.

The mineral sits on the surface of skin and is not known to absorb into the bloodstream, so it is generally considered safe during pregnancy and breastfeeding. This is not medical advice; anyone who is pregnant or nursing should show their doctor any skincare product they plan to use, just to be sure it fits their personal needs.

Halloysite does not make skin more sensitive to sunlight, so there is no added risk of sunburn. It also plays well with common actives like retinoids, vitamin C and hydroxy acids because it is chemically stable and non-reactive.

Potential Side Effects/Adverse Reactions

Responses to topical halloysite differ from person to person. The points below list potential side effects, though most users will not notice any problems when the ingredient has been properly processed and used at normal levels.

  • Excess dryness or tightness in areas that are already low on moisture, especially if the product is left on for long periods
  • Mild irritation or redness if trace impurities remain in a poorly purified clay batch
  • Rare allergic contact dermatitis in individuals sensitive to aluminum or other natural minerals
  • Temporary respiratory irritation if large amounts of loose powder are inhaled during application
  • Gentle micro-abrasion when rubbed aggressively onto very delicate skin, leading to slight roughness

If you notice any persistent redness, itching or discomfort while using halloysite or a product that contains it, stop use and speak with a qualified healthcare professional.

Comedogenic Rating

Rating: 0 / 5. Halloysite sits on the surface, soaks up oil and does not leave a greasy film that could block pores. Its particles are too large to slip into follicle openings, which keeps clogging risk low. For people who break out easily this makes halloysite a skin friendly option. In very powder heavy formulas a thick layer could mix with sebum and sweat then settle in pores, but that is unlikely with normal use and easy to rinse away.

Summary

Halloysite is mainly used to absorb oil, mattify skin, adjust texture and add gentle white color. Its tiny tubes trap sebum and moisture, giving long lasting shine control and a smooth feel without harsh chemicals. While not as famous as kaolin or bentonite it is gaining quiet popularity in masks, primers and loose powders aimed at oily skin.

The mineral is considered safe for most users thanks to its inert nature and minimal penetration. Side effects are rare and often tied to over drying or poor grade clay. As with any new product a quick patch test is wise to make sure your skin agrees with the formula.

Was this article helpful?
More from Glooshi:
ADVERTISEMENT
Get all our top headlines in beauty.
Delivered right to your inbox each week. Zero spam, all goodness, opt-out at anytime.
This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
Get the latest beauty news, top product recommendations & brand-exclusive discount codes direct to your inbox.
Send good feedback:

All feedback is greatly appreciated, anonymous, and will be used to improve the quality of our articles.

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
Send bad feedback:

All feedback is greatly appreciated, anonymous, and will be used to improve the quality of our articles.

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
Search