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Iodopropynyl Butylcarbamate

What-it-does: preservative


It's one of those things that help your cosmetics not to go wrong too soon, aka a preservative. Its strong point is being effective against yeasts and molds, and as a nice bonus seems to be non-comedogenic as well.

It is safe in concentrations of less than 0.1% but is acutely toxic when inhaled, so it's not the proper preservative choice for aerosol formulas like hairsprays. Used at 0.1%, Iodopropynyl Butylcarbamate has an extremely low rate of skin-irritation when applied directly for 24 hours (around 0.1% of 4,883 participants) and after 48 hours that figure was 0.5%, so it counts as mild and safe unless your skin is super-duper sensitive.

Show me some proof

  • Lanigan, Rebecca S. "Final report on the safety assessment of iodopropynyl butylcarbamate (IPBC)." International Journal of Toxicology 17.5_suppl (1998): 1-37.

Products with Iodopropynyl Butylcarbamate

Cetaphil Gentle Cleansing Cloths HydroSkinCare Ha² Serum PCA Skin Weightless Protection Spf 45 Simple Refreshing Facial Gel Wash SunSense Daily Face Spf 50+ Mecca Cosmetica Clean Slate Micellar Water Life Brand Nourishing Facial Sheet Cream Mask Hada Labo Tokyo Super Hydrator Lotion Pond's Cold Cream Cleanser Alpha Skin Care Intensive Renewal Serum, 14% Glycolic Aha Sexy Look Intensive Brightening Black Cotton Mask Stratia Soft Touch Aha Hada Labo Mild & Sensitive Skin Face Wash PCA Skin Protecting Hydrator Broad Spectrum Spf Sexylook Intensive Hydrating Cotton Black Mask EltaMD Uv Clear Broad-Spectrum Spf 46 EltaMD Uv Clear Facial Sunscreen Broad-Spectrum Spf 46 EltaMD Uv Daily Broad-Spectrum Spf 40 Neutrogena Make-Up Remover Cleansing Towelettes Real Chemistry Fresh-Start Foaming Cleanser Environ Retinol Serum 3 Hada Labo Hydra & Whitening Face Wash Hada Labo Softening & Whitening Face Wash Home Health Hyaluronic Acid Moisturizing Cream Anthony Logistics Glycolic Facial Cleanser Dermedic Hydrain 3 Hialuro Cream Dove Dermaseries Gentle Cleansing Body Wash EltaMD Uv Daily Broad-Spectrum Spf 40 Stratia Velvet Cleansing Milk Dove Go Fresh Cool Moisture Body Wash PCA Skin Rebalance TRESemmé Heat Defence Styling Spray iS Clinical Cleansing Complex Cetaphil Gentle Makeup Removing Wipes Dermasil Dry Skin Treatment - Original Lotion Hada Labo Deep Clean & Pore Refining Face Wash Hada Labo Skin Plumping Gel Cream Jack Black Double-Duty Face Moisturizer Spf 20 Jack Black Oil-Free Sun Guard Spf 45 Sunscreen O’Keeffe’s O'Keeffe'S Skin Repair Body Lotion iS Clinical Cleansing Complex Alpha-H Protection Plus Daily Spf50+ Biyougeneki Super Hyaluronic Acid & Astaxanthin Lotion DevaCurl One Condition Original EltaMD Pm Therapy Facial Moisturizer Nip+fab body Cellulite Fix Top Care Night Time Firming Cream bebe 5In1 Pflegende Reinigungstücher Biore Pore Unclogging Scrub DevaCurl No-Poo Original
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