A recent study finds that aloe vera—a popular natural ingredient in personal care products—enhances the bioavailability of vitamins B12 and C among mature adults, according to the International Aloe Science Council, Inc. of Irving, TX. Aloe vera is a powerful complement to other supplements, enhancing their absorbance and effects, according to the council. Both aloe vera gel and whole leaf aloe were tested in the random crossover trial, with the gel demonstrating the strongest results in pro...