Our compounding pharmacys are great. If you are ever dissatisfied with the "look" of your vial or develop an allergy with an oil base they use just send it back and they will recompound it for you. If your disatified with their product Give Brett @ hallandale a call. I got to be honest this vial looks fine to me. They use 3 different oils to compound test medications. Cottonseed oil, sesame seed oil and grape seed oil. The last vial was probably just compounded with a different oil thats why you notice a difference. Nothing to be alarmed about.