Kee Pharma offers Natural Micronized Progesterone Capsule. Kee Pharma is an ISO 9002 awarded company. The Natural Micronized Progesterone Capsule is obtained from a plant source [from Mexican yam roots]. Micronization process enables rapid absorption of natural compound, so that adequate concentrations appear in blood. Decreasing the particle size [less than 10 micron] with micronization increases dissolution and increases the bioavailability. When progesterone is administered orally, it is metabolized extensively in the gut and liver.