This is the response my practitioner got back from the lab.
"Color changes to our products are very common, as natural ingredients vary from batch to batch. This sometimes can cause slight variation in color, sometimes darker and lighter or some deviations in the speckles. Our GB 3 formulas has not been changed. Lot # 419732 was delivered to us in mid January and the batch has been totally distributed and is no longer available. To this date we have had no other questions or concerns related to this batch"