Bone-strengthening herbs: ① Yukmijiwhang-tang base (kidney-yin tonic), ② Pal-mi-hwan (kidney-yang and bone), ③ specific bone herbs (Eucommia/Du Zhong, Achyranthes/Niu Xi, Lycopodium/Sansaeng), ④ Gyeokokgo (long-term bone strength), ⑤ for osteoporosis, post-fracture, aging. Effects build over 3–6 months. Combined with calcium and vitamin D. Especially valuable for menopausal women, elderly. Out-of-pocket.