Synovex One Grower - 100 DoseSynovex One Grower 150 mg trenbolone acetate and 21 mg estradiol benzoate SynovexOne Grower is an extended release subcutaneous implant for growing beef steers and heifers on pasture and fed in confinement for slaughter to improve weight gain. Indications: For increased rate of weight gain for up to 200 days in growing beef steers and heifers on pasture or fed in confinement for slaughter. Zoetis