Henry blooms Tri-Magnesium Citrate 900mg is specially formulated for the prevention and treatment of Magnesium deficiencies. It supports bone health by regulating the absorption of calcium and is an important mineral required to support muscle function. Tri-Magnesium Citrate can improve PMS symptoms such as mood changes and helps reduce the duration and symptoms of mild migraines. It also helps to relieve muscle cramps and mild muscle spasms when dietary intake is inadequate.Vegan friendly. Henry Blooms Tri-Magnesium Citrate 900 mg is specially formulated for the prevention and treatment of Magnesium deficiencies. Magnesium is an essential mineral involved in over 300 enzyme systems. It supports bone health by regulating the absorption of Calcium and is an important mineral required to support muscle function. Tri-Magnesium Citrate can improve PMS symptoms such as mood changes and help to reduce the duration and symptoms of mild migraines. It also helps to relieve muscle cramps and mild spasms when dietary intake is inadequate.