Promotes Healthy Estrogen. Dietary Supplement. Contains BioResponse DIM®, a unique, stable, bioavailable form of DIM, made possible through a proprietary delivery system. The formula is co-solubilized with phosphatidylcholine, and microencapsulated in starch particles. Unlike indole-3-carbinole (13C), proprietary BioResponse DIM® is highly stable and requires no conversion in the stomach.