The dispenser on the Progest-E bottle is a “non-control dropper”. This means the size of the progesterone drops will vary depending on factors such as the temperature of the solution and amount of pressure applied to the bottle. This makes it essential when discussing “drops” to identify the weight of the drop. For people who want to know exactly how much they’re using, we recommend using a scale that can accurately measure in milligrams.
In the past we described a “small drop” as a drop weighing 30-40 mg, which
looks approximately the size of a BB. This size drop contains approximately
3.5 mgs of progesterone. Each 34 mL size bottle contains approximately 970
drops weighing 30-40 mgs.
Talking to users of Progest-E, we’ve learned that a 60 mg drop is the most common minimum amount used. A 60 mg drop of Progest-E looks approximately the size of an unpopped kernel of popcorn which can be used as a reference for people who don’t have a scale which weighs in milligrams. Each 60 mg drop contains 6 mg of progesterone. There are approximately 560 drops weighing 60 mg in each 34 mL bottle.