L. D. Collins and Co. Limited have a rich history, and were established in 1970. The company is currently undergoing rapid growth.L. D. Collins are the owners of Cyclogest, a natural progesterone product in the area of female health.Cyclogest is used for assisted reproductive therapy, pre-menstrual syndrome and post-natal depression, and is one of the best known progesterone products across many markets around the globe.