Molecular hydrogen (H2) has gained significant attention in recent years for its potential health benefits. As research continues to uncover its antioxidant, anti-inflammatory, and therapeutic properties, the question of how to best deliver hydrogen to the body becomes increasingly important. Among the various methods available, molecular hydrogen inhalers have emerged as a popular choice, but how do they compare to other delivery methods? This article explores the advantages and disadvantages of inhalation versus alternatives such as hydrogen-rich water, tablets, and topical applications.