|  | Public Health Safety | Food Safety

What Are the Functions of Glycerin?

Glycerin is a thick, clear and odorless liquid that is a by-product of soap making, bio-diesel production and cooking oil refinement. It's widely used in foods, cosmetics and pharmaceuticals.

  1. Food

    • Glycerin is used in food products to help retain moisture, improve texture and add sweetness, primarily to candy and baked goods.

    Cosmetics and Personal Care

    • Glycerin allows products such as toothpaste and lip gloss to retain their smoothness and shine. An emollient, glycerin helps moisturize, soften and soothe skin and is a common ingredient in lotions, moisturizers and soap.

    Pharmaceuticals

    • Glycerin is used in pharmaceutical drugs for many of the same reasons as in food and cosmetics; as a humectant, for improved texture and as a holding agent for such things as tablets.

    Safety

    • Glycerin is considered safe for use in food, personal care products and pharmaceuticals by the Food and Drug Administration. The production of USP and food grade glycerin is closely monitored by the FDA.

    Miscellaneous Uses

    • Glycerin's versatility extends even to household uses. Use glycerin to clean a sticky spill in a freezer or add it to warm water and leftover slivers of bar soap to make liquid hand soap. You can even preserve dry leaves for months by soaking them in a solution of one part glycerin and two parts water for several days, or until the leaves are soft and supple.

Food Safety - Related Articles