Available on our site 🌿 This all-herbal formula for ADHD has been in use for 1,000 years and was first developed by the esteemed pediatrician Qian Yi (1032-1113), author of the world’s oldest surviving pediatric text, predating the earliest European pediatric text by 300 years. / Historically, Liu Wei Di Huang (or Six Flavor Rehmanni on our site) has been used for treating inability to focus in children, and is a variant of a popular 3rd century formula called Jin Kui Shen Qi. / Many of the pos