T-4 is a precursor to the more powerful T-3 that is produced by the thyroid gland and regulates metabolism. The upside of T-4 supplementation is that it can be continued longer and does not typically contribute to down regulation of the thyroid gland. This means your thyroid keeps functioning normally and when you stop using the T-4 there is no fat “bounceback” as the thyroid re-adjusts.

The effect of Thyrax is to accelerate the users metabolism so that the body burns more calories. This allows for faster cutting while still preserving lean mass (your muscles). It also gives a very hard and chisled look as the fat gets stripped off the muscles and the muscles themselves become more defined.

The dosage for L-Thyroxine is 1 to 1.5 mcg per pound of bodyweight. As with any new supplement it is wise to start with the lowest dose possible and work your way up. This way you can assess for positive effects and avoid any nasty side effects, although when used properly there are few side effects to L-Thyroxine.

I recommend that you combine T-4 with an ephedra stack. This will stimulate the thyroid to convert the T-4 into the more potent thyroid hormone, thus maximizing the fat burning effect.

L-Thyroxine is a prescription drug and available only in pharmacies. L-Thyroxine is rarely found on the black market.

Cytomel stimulates the metabolism which causes a faster conversion of carbohydrates, proteins, and fats. For those interested in burning fat this is excellent and it is possible to attain very low fat content without extreme hunger dieting. In addition, if you choose to use Cytomel alongside steroids or prohormones you will find your gains will be faster, probably the result of increased protein conversion.

Several of the bodybuilders and male models you see in muscle magazines get a portion of their hard and defined look by taking Cytomel. The Cytomel really turns up their metabolism allowing them to get that “shredded” look and maintain it even with sub-par diets. Cytomel can be combined with clenbuterol or albuterol for even greater fat loss. You will literally turn your body into a fat burning furnace. And a short cycle of Cytomel is much better for your body than an extreme starvation diet.

When taking Cytomel start slowly since it is very powerful and effective. You should begin with a low dosage and increase slowly and steadily over the next couple of weeks. A good ramp up schedule is to start with 25mcg per day and increase that by 25mcg every 4 days until you get up to 100mcg. Going higher than 100mcg per day is not necessary and may not be safe. Your daily dose should be divided into three smaller individual doses to make the supplement more effective. After about 1 week at 100mcg you should also ramp back down in the same way. Cytomel should not be taken for more than 6 consecutive weeks. After a cycle at least 10 weeks of abstinence should follow to allow the thyroid to return to normal functioning.

Possible side effects:

• heart palpitation
• trembling
• irregular heartbeat
• agitation
• shortness of breath
• excessive perspiration
• diarrhea
• weight loss
• psychic disorders

My experience is that most symptoms consist of trembling, nausea, headaches, high perspiration, and increased heartbeat. You can eliminate these side effects by temporarily reducing the daily dosage. If you use Cytomel for several consecutive weeks you will experience a loss of muscle mass unless it is combined with steroids. You can also minimize this effect by eating a higher amount of protein than usual.

L-T3 can usually be found quite easily. 100 tablets of 0.05 mg each cost approx. $40. It is unlikely that there will be fakes. In addition you can find liquid liothyronine sodium as a research chemical. It is just as effective as the tablets.

Now there is also a safe and legal alternative to Cytomel. Gaspari Thermogenic Thyrotabs are unique among thyrogenic fat loss supplements in that it is both an active fat loss agent as well as a prohormone to the two most important fat loss biomolecules in the human body -T3 (liothyronone) and T4 (levothyroxine).