Hello Jacob . I purchased some Goldwater from you for my daughter J…. who suffers from brittle bones (oi) last year , and some from izobel Williams earlier this year .the improvement in Jessie has been immense , she was born with type 3 oi which is very weak indeed she now is rated as type 5 oi and this is massive improvement in such a short time , she was also diagnosed with 2 compressed vertebrae in her spine 18 months ago this has now disappeared which has surprised her doctors hugely , we believe that the Goldwater is the main reason of her improvement which we are very grateful to you for , she also receives pamidronate from her doctors here, One again thank you very much .