Some of the most popular treatments used by anti-aging doctors include:* Hormone optimization therapy: Customized programs to restore optimal hormone levels. Common hormones they may prescribe include human growth hormone (HGH), testosterone, thyroid hormone, melatonin, DHEA, and more.* Peptide therapies: Short protein chains that regulate cellular communication. Certain peptides show promise for immune function, tissue repair, endurance, weight loss, and neural health.* IV therapies: Intravenous cocktails packed with antioxidants, vitamins, minerals, amino acids, and anti-inflammatory agents to flood your cells with nutrition and hasten healing.* Regenerative medicine: Stem cell and PRP therapies to repair damaged joints, tissues, organs and stimulate regeneration.* Genetic testing: Analysis of your DNA can pinpoint genetic predispositions, guide nutrition recommendations, avoid adverse drug reactions, and highlight areas of aging to target.