Glycerin is said to help with exfoliation. Getting rid of the dead skin cells and debris will help brighten the complexion. Glycerin also aids in the removal of age spots, scars, and dark areas. Due to all these properties, many soaps and body lotions use glycerin for skin whitening. It can increase skin hydration, relieve dryness, and refresh the skin’s surface. It’s also an emollient, which means it can soften skin. This is great if eczema or psoriasis leave you with rough or dry patches. Glycerin also has antimicrobial properties, which means it can protect the skin from harmful microorganisms.