No , Keraboost doesn't cause weight gain. But baldness along with weight gain -- if you also have irregular mensus the cause could be hormonal (PCOS) for the former two mentioned things. Hair loss is a progressive problem and if not tackled in time tends to keep worsening over time. There are various causes of hair fall. Read my health feed for a better detailed understanding. https://fit.practo.com/#!/content/28405 After reading this I hope you will be convinced that a proper thorough examination of your scalp from a qualified dermatologist will be advisable for a fruitful outcome. Hope this was helpful.