Al-helper compositions comprise an Al compound (e.g., melatonin, alpha-lipoic acid, vitamin E, vitamin D, glutathione, resveratrol, astaxanthin, beta carotene, vitamin A, vitamin C, vitamin B12, vitamin B6, folic acid, and taurine) and one or more helper esters. The Al- helper compositions can be used for effective transdermal delivery of the Al compound to a subject. A use of the Al-helper composition disclosed herein for the treatments of, e.g., without limitation, skin disorders, gastroesophageal reflux disease, cancer, immune disorders, cardiovascular diseases, depression, seasonal affective disorder (SAD), circadian rhythm sleep disorders, insomnia, Alzheimer's disease, delirium, headaches, obesity, amyotrophic lateral sclerosis, tinnitus, irritable bowel syndrome, aging and autism spectrum disorders (ASD).
