I believe there’s are in dry form but I never bought A1 there so I am not positive.
These posts will help >>>
For crystal EST pheromones I dissolve in ethanol, 1ml to 1 mg of pheromones. It takes a few days to dissolve completely. Then I mix this in DPG if I am adding it to a oil EO cover. If not I add it right to the alcohol based product I am using without the DPG. The tricky part is figuring out the dose.