Different anti-aging supplements contain different compounds, which can be known by reading the label. But for most of us, simply knowing the name of the compound does not help in knowing its beneficial qualities. The most popular anti-aging supplements are vitamins, beta-carotene, flavonoids, resveratrol and anti-oxidants. Vitamins C and E are important for smooth and supple skin. These vitamins help collagen to retain its elasticity, which usually decreases with age. This causes wrinkles and sagging skin. Vitamin B7 or pantothenic acid reduces hair fall and helps one maintain voluminous hair. Anti-oxidants prevent the attack of free radicals that can combine with fat deposits in the brain and on the lens of the eye. This can cause reduced brain response and vision. Many plant derivatives have the capacity to mimic the function of body hormones that are present in the body during youth but then reduce with age. These hormones like estrogen, testosterone and growth hormones can keep one feeling hale and hearty.