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Alumina

Also-called-like-this: Aluminum Oxide, Al2O3

Details

A multi-functional helper ingredient that's used mainly as a pigment carrier.  The pigment can be an inorganic sunscreen (such as titanium dioxide) or a colorant that is blended with alumina platelets and then often coated with some kind of silicone (such as triethoxycaprylylsilane). This special treatment enables pigments to be evenly dispersed in the formula and to be spread out easily and evenly upon application. It is super useful both for mineral sunscreens as well as for makeup products. 

Other than that, alumina can also be used as an absorbent (sometimes combined with the mattifying powder called polymethylsilsesquioxane), a viscosity controlling or an opacifying (reduces the transparency of the formula) agent.

Products with Alumina

Australian Gold Botanical All Natural Max Strength SPF 50 Sunscreen Lotion Australian Gold Botanical Lotion SPF 30 Australian Gold Botanical Sunscreen Face Tinted Spf 50 Beauty Face Mascarilla Facial Miel Blistex Soft And Lush Lip Balm Blistex Ultra Protection Lip Balm, Spf 30 Volim Love Scrub Avon Anew Clinical Isa Knox Collagen Booster Microneedling Polisher Azelique Age Refining Skin Polish Biore Charcoal Pore Minimizer Bobbi Brown Radiance Boost Face Mask Colourpop Supershock highlighter Colourpop Ultra Matte Lip #Snowfleek Derma E Microdermabrasion Scrub Dr. Brandt Skincare Microdermabrasion Ave Defying Exfoliate Dr. brandt Microdermabrasion Dr. brandt Poredermabrasion Goop Beauty Goopglow Microderm Instant Glow Exfoliator Image Skincare Ageless Total Resurfacing Masque Kiehl’s Epidermal Re-Texturizing Micro-Dermabrasion Nia 24 Physical Cleansing Scrub (2015 Reformulation) No. 7 Total Renewal Prai Ageless Throat Microdermabrasion Skin Resurfacer Shu Uemura Rouge Unlimited Matte SkinCeuticals Micro Polish Spotlight Beauty Vp22 Touch Microdermabrasion Vasanti Brightenup! Enzymatic Face Rejuvenator Zo skin health Broad-spectrum Sunscreen SPF 50 Australian Gold Botanical 70 Australian Gold Botanical Mineral Sunscreen Lotion SPF30 Australian Gold Botanical Spf 50 Tinted Facial Lotion Australian Gold Botanical Sunscreen Tinted Face Mineral Lotion, Broad Spectrum, Water Resistant, Spf 50 Australian Gold Natural Botanical Mineral Spf 50 Sunscreen Lotion BRUSH ON BLOCK Translucent Mineral Powder Sunscreen Blue Lizard Baby Mineral Sunscreen Spf 50+ Blue Lizard Sensitive Face Mineral Sunscreen Spf 30+ Blue Lizard Sensitive Mineral Sunscreen SPF 50+ Bobbi Brown Long Wear Eye Base CVS Health Sensitive Skin Sun Lotion Spf 60+ Cara Skin Care Daily Solar Guard SPF 25 Cetaphil Sheer Mineral Sunscreen Cetaphil Sheer Mineral Sunscreen SPF 50 Face & Body Lotion Fragrance Free Coola Daydream® Mineral Spf 30 Makeup Primer Sunscreen Cotz Face Natural Skin Tone Spf 40 Cotz Face Natural Tinted Spf 40 Cotz Face Prime & Protect Spf 40 – Tinted Dermadoctor DD Cream Dermatologically Defining BB Cream Broad Spectrum SPF 30 EltaMD Uv Physical Tinted Face Sunscreen Spf 41 Exuviance Exuviance Triple Microdermabrasion Face Polish