Aged garlic extract is a natural supplement made from garlic that has been aged for 20 months or longer. The aging process breaks down the Allicin in garlic, making it more potent and easier for your body to absorb. Aged garlic extract has been shown to have many health benefits, including reducing cholesterol and blood pressure, boosting immunity and fighting inflammation. It is also thought to be effective in preventing cancer and Alzheimer’s disease. Aged garlic extract is generally considered safe, with few side effects reported.