Published April 2025. Reviewed by Craig Canapari, MD. Magnesium supplements for sleep in general are having a moment. One thing that has been puzzling to me is how much topical magnsium– magnesium sprays and lotions- have become so incredibly popular now for sleep deprived parents.. But do they work? 1. The Rise of Topical Magnesium … Continue reading Why Magnesium Sprays and Lotions Don’t Work for Children’s Sleep (According to Science)