Hey I’m not receiving any emails back from Tracy or Irene.. ordered sept 6 Canada warehouseYes unfortunately the cost per iu gets more expensive when making higher dosages per vials, but if the demand is enough high on 50iu versions we can meet it and keep a similar pricing to the 40iu per iu despite the lower profit.
For the moment the hot seller versions are the 10iu and 36iu.
Demand on 24iu and 15iu is lower.

