Cytomel is not a steroid, but more a of a cutting aid. It's a synthetic form of the thyroid hormone tri-iodio-thyronine or T3, In bodybuilding circles Cytomel is mostly used as fat-loss drug. Thyroid hormones are often referred to as the metabolic regulators of the body. High levels of T3 speed up the metabolism of an individual, allowing him to burn more calories and use calories more sufficiently. As with insulin, misuse of this compound can leave you dependent on exogenous T3 for the rest of your life so some caution and research is required before putting Cytomel in your body. Generally cycles should be limited to 4-6 weeks tops. A good recommendation is 3 weeks in alternating cycles with 3-week cycles of clenbuterol. But most importantly, to avoid a crash or a shock to the thyroid function doses need to be built up over time and tapered off again. More so for cytomel than for any other drug in existence. For recreational users looking for a fatburner clenbuterol should be preffered over cytomel for all intents and purposes. Cytomel is much more powerful, but clenbuterol is a lot safer for use. The results are easier to maintain with clenbuterol as well. For competitive bodybuilders Cytomel is an almost unmissable aid in contest preparation, along with clenbuterol and non-aromatizing steroids such as stanazolol, trenbolone, methenolone etc. Running it for three weeks, one could choose for a schedule as follows: 25/25/25/50/50/50/75/75/75/100/100/100/75/75/75/50/50/50/25/25/25 µg/day. If taken for 4 weeks, then run each dose for 4 days, 5 weeks then each dose for 5 days and so on. It is extremely important that the doses are tapered on and off and that a cycle never exceeds 6 weeks at the most. As far as adding products, no ancillaries are needed, but its highly recommended that this is only used when anabolic/androgenic steroids are also being used. First of all the extra free calories work with the steroids to enhance results, but also because an increased level of thyroid hormones can be extremely catabolic and the use of anabolic compounds to counter muscle loss is a requirement here.