Dietary Supplement Contains Graminex Concentrated Flower Pollen Extract What is PollenAid? PollenAid contains a concentrated clinical formulation of superior Graminex Flower Pollen Extract. Flower Pollen Extract provides the body with a full spectrum of essential nutrients to promote healthy function. Backed by over 40 years of clinical research, for safety and efficacy, flower pollen extract has been shown to reduce the size and congestion of prostate cells, improve urinary flow rate and clearance via the action on the smooth muscle and affect the metabolism and prohibit the production of DHT (dihydrotestosterone).