Crystals are best powder second capsual third tablets last
I think tablets have most additives normally you can test msm by how well it dissolves in water the powder I use dissolves really well its also much better value to buy powder because you get a lot more for your money especially if you take high amounts.
The dose depends on what you want from your msm if your taking it alone for breast growth take a higher dose 6-15g you need about 1g vitamin c per 3g msm.
If your taking it with nbe program lower dose could help growth as well.
I think tablets have most additives normally you can test msm by how well it dissolves in water the powder I use dissolves really well its also much better value to buy powder because you get a lot more for your money especially if you take high amounts.
The dose depends on what you want from your msm if your taking it alone for breast growth take a higher dose 6-15g you need about 1g vitamin c per 3g msm.
If your taking it with nbe program lower dose could help growth as well.