Is the grapeseed oil used in test the same? However, im also wondering about the carrier Oil as I know their is a lot of evidence that seed oils such as grapeseed oil have been know to be fairly unhealthy when cooking. Hey guys I've just started TRT and I'm using test cyp with grapeseed oil. Our old testosterone formulation will still be available for those patients who want to continue it. The meds are mixed with a new oil, Miglyol, that allows for sub cutaneous injection instead of intramuscular injection. The new formulation is a combination of 80% testosterone cypionate mixed with 20% testosterone propionate. Starting Jan 1, The Men’s Clinic will be offering a new testosterone formulation to our patients. The two meds will be mixed in a vial that patients will draw directly from. If you are interested in trying the new formulation or have any questions, just let Jake or Ross know and we will take care of it for you. The injections will be placed just beneath the skin using a very small needle two times per week.