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Magnesium Aluminum Silicate

Irritancy: 0
Comedogenicity: 0


A type of clay mineral that works as a nice helper ingredient to thicken and stabilize formulas. As a clay, it consists of platelets that have a negative charge on the surface (face) and a positive on the edge. So the face of one platelet attracts the edge of the other and this builds a so-called "house of card" structure meaning that Magnesium Aluminum Silicate (MAS) thickens up products and helps to suspend non-soluble particles such as color pigments or inorganic sunscreens (zinc oxide and titanium dioxide).

As the "house of card" structure takes some time to form but collapses quickly if the formula is stirred, products thickened with MAS can be thick in the jar but become easily spreadable upon application (called thixotropy). MAS also gives nice sensory properties, it is not tacky or sticky and gives a rich, creamy skin feel. Also a good team player and works in synergy with other thickeners such as Cellulose Gum or Xanthan Gum

Show me some proof

  • International Federation of Societies of Cosmetic Chemists Monograph number 3, An introduction to rheology

Products with Magnesium Aluminum Silicate

Brickell Men's Products Purifying Charcoal Face Mask For Men Remescar Eye Bags & Dark Circles Tata Harper Clarifying Spot Solution Venofye Viperlift Bio Syringe Yes to Carrots Vitamin-Enriched Kale Diy Powder-To-Clay Mask GLAMGLOW SUPERCLEANSE™ Cream-To-Foam Cleanser GLAMGLOW Supermud Clearing Treatment GLAMGLOW TROPICALCLEANSE™ Daily Exfoliating Cleanser Mario Badescu Enzyme Revitalizing Mask My perfect cosmetics My Perfect Eyes Proactiv Step 1 Cleanser Revolution Skincare Charcoal Purifying Face Mask Revolution Skincare Pink Clay Detoxifying Face Mask Superdrug B. Glowing Clay Face Mask Vine Vera Resveratrol Shiraz Instentic Non-Surgical Syringe Anne Semonin Mineral Mask Anthony Algae Facial Cleanser DECLÉOR Phytopeel Exfoliating Cream GLAMGLOW Youthmud Tinglexfoliate Treatment Glossier Mega Greens Galaxy Pack Perricone MD Thio:Plex Intensive 2-Step Brightening System [Step 1: Intensive Base] The Body Shop Himalayan Charcoal Purifying Glow Mask Uriage Bariéderm Drying Repairing Cica-Spray dr. denese Black Clay Firming Facial Mask Algenist Perfect Clarifying Pore Corrector Mask Amie Spring Clean Deep Cleansing Mask BCL Tsururi Ghassoul Mineral Clay Pack Botanical Lab Clay & Sulfur Drying Lotion Bruno Vassari Scrub & Mask Clinique City Block Purifying Charcoal Clay Mask + Scrub Freeman beauty Detoxifying Charcoal + Black Sugar GLAMGLOW POWERMUD™ Dualcleanse Treatment Clay Mask Jack Black Deep Dive® Glycolic Facial Cleanser Max Love Primer Hd Pré Maquiagem Facial Peter Thomas Roth Potent C Targeted Spot Brightener Red Earth Pink Coconut Clay Cleansing Face Mask Swisse Manuka Honey Detoxifying Facial Mask Apivita Grape Eye Mask Cal PHARMA Turmeric Herbal Anti-Aging Moisturizer Delia Botanical Flow Cleansing Green Clay Mask Fourth Ray Clean Slate Indie Lee Blemish Lotion Josh Gold Mask Kate Somerville EradiKate Acne Treatment MAC Mineralize Skin Finish Peter Thomas Roth Instant Firm X Eye Revolution Skincare Green Tea & Walnut Exfoliating Face Mask SeneGence 3-In-1 Normal To Dry Cleanser SeneGence Polishing Exfoliator Sephora Mud Mattifying Mask