Description

Testosterone is a steroid hormone (which comes from the chemical transformation of cholesterol:

cholesterol is first converted to either progesterone or dehydroepiandrosterone, both of which are converted to testosterone).

Daily production of testosterone in men varies between 5 and 10 mg, in women it is around 1 mg.

Testosterone is then released into the blood where its concentration reaches 500 to 800 mg per ml of blood plasma in men and 35 to 40 mg per ml in women.

However alone a small part of this testosterone has an influence on human metabolism. On the other hand, the small part of testosterone which remains free acts in various ways.

The main action of testosterone is protein synthesis. By entering muscle, organ or bone cells, testosterone triggers a series of chemical reactions inside the cell that result in the creation of protein. ©ines, and hence to the magnification of the cell.

At the muscle level, this protein synthesis leads to a gain in muscle mass, and at bone level, bone growth. However if the rate of testosterone becomes too high, it can produce a welding of cartilage able to stop the growth at the teenager. It is essentially for this reason that the use of testosterone or androgens is contraindicated in adolescents.

After having acted, testosterone is then transformed mainly in the liver, into various molecules (androstenedio, androstenedione, etc.) which will be eliminated in the urine after passing through kidneys.

The regulation of secretion of testosterone takes place at the level of the hypothalamus-pituitary group. This group secretes hormones called LH and FSH, which trigger the secretion of testosterone in the testicles.

When testosterone reaches a high enough level in the blood, the hypothalamus-pituitary group stops producing the hormones LH and FSH, because it has testosterone-sensitive receptor cells that warn it that the blood testosterone level is already quite high.

Taking anabolic steroids causes the testicles to rest through feedback. It therefore follows a cessation of testosterone production by the testicles, generally after 6 to 8 weeks of the cycle.

When you then stop taking steroids, the testicles do not naturally start working again, which is why bodybuilders usually take HCG to boost endogenous testosterone production.

Moreover, the decrease the blood level of testosterone after the cycle makes the bodybuilder lethargic: he feels less fit and tends to lose weight while regaining fat. In order to avoid this, bodybuilders take care to reduce their food intake after a cycle of steroids. Since metabolism is no longer as high as it was during the cycle, the muscle is more prone to 'cannibalism', that is, to use its own constituent proteins as fuel during effort instead of carbohydrates. The bodybuilder must therefore also reduce the intensity of his training in order to avoid a catabolic effect.

The effects of testosterone:

. hyper hairiness in the pectorals, back, lower abdomen

. baldness.

. thickening of the skin.

. deep voice due to the enlargement of the larynx (Adam’s apple) and

thickening of the vocal cords.

. broadening of the shoulders.

. increase in sexual desire.

. energy going as far as aggressiveness.

Testosterone has many possible side effects, the risk of which increases according to the predisposition, the doses used and the duration of use:

. cessation of sperm production and sterility.

. hydrosodic retention

. lowered immune defenses

. excess estrogen and gynecomastia, according to the predispositions of

the individual.

. skin disorders: acne, stretch marks

. prostatic hypertrophy and cancers at high doses.

. high blood pressure due to fluid retention

– risk of cardiovascular or renal diseases.

Researched Testosterone Effects by users are above all a significant increase in strength and muscle mass.

Testosterone almost never exists as a single constituent in the products on the market. It is associated with various esters whose role is to modify the intensity and duration of the effects of testosterone.

THE DIFFERENT FORMS OF TESTOSTERONE:

Testosterone propionate

Testosterone propionate has a very short duration of action: 1 or 2 days only. Testosterone propionate provides significant gains in mass and strength, but with the advantage of minimal water retention, which guarantees a denser and better quality musculature.

Due to its rapid action, this ester allows a significant increase in energy during training as well as better vascularization (blood irrigation) from the first days of the cycle.

It is common that users begin a cycle with testosterone propionate (50-100mg/day) and continue with testosterone enanthate, which is an ester with a longer lasting effect.

Testosterone enanthate

Testosterone enanthate is one of the most widely used forms of long-acting testosterone.Its duration of activity in the body being 2 to 3 weeks, it is generally sufficient to inject 250 mg per week to maintain a high level of testosterone . However, it should be known that in practice the average dose of use is 500 Mg per week.

Testosterone enanthate produces a very rapid increase in strength and weight, with significant water retention and gynecomastia (which is combated with Nolvadex and Proviron). As with all potent androgens, it is necessary after cycle termination to restart endogenous testosterone production using HCG and/or Clomid.

To gain weight and spectacular strength, bodybuilders use testosterone enanthate stacked with Anadrol.

Combined with Anavar, this form of testosterone provides muscle strength and volume

Testosterone cipionate

This testosterone ester is none other than the American version of testosterone enanthate, and therefore does not exist in Europe. Its effects and properties are identical in all respects to those of enanthate.

Testosterone heptylate

Testosterone heptylate provides rapid and greater gains than with enanthate or cipionate.

Very good results are generally obtained even at relatively low doses, such as 250 to 500 mg per week, which avoid excessive water retention.

On the other hand, this form of testosterone breaks down very easily into estrogen.

It is therefore necessary to add an antiestrogen to it in order to avoid the appearance of gynecomastia.

It is one of the most powerful testosterone esters.

Testosterone undecanoate

It is one of the only forms of existing testosterone orally, and which is in addition not toxic for the liver.

All other testosterone esters are only available in injectable form, while testosterone undecanoate is sold in 40mg capsules.

Being in tablets and having no hepatic toxicity makes Pantestone the "must" of testosterone, especially since it is no less effective than injectable testosterone esters.

Indeed, the product is absorbed by the lymphatic system and therefore does not pass through the liver, which allows it to retain all its effectiveness while not causing liver damage.

Thanks to its chemical formula, testosterone undecanoate aromatizes into estrogen only from 200 mg.

However, and this is the irony of the Pantestone, while testosterone undecanoate has no noticeable side effects up to 200 mg/day, it does not have to also at these doses little effectiveness.

Bodybuilders like to combine Pantestone with oxandrolone to get big gains in mass and strength.

Before competitions, Pantestone combined with Parabolan and a salt-free diet helps to acquire good muscle density by minimizing water and sodium retention.

Finally for pure mass gain, Pantestone is frequently combined with oxandrolone or Deca Durabolin

Sustanon

The very famous Sustanon is a mixture of 4 testosterone esters whose composition is as follows:

– 30 mg of testosterone propionate (duration of effect: 3-4 days)

– 60 mg of testosterone phenylpropionate (duration of effect: 1-3 weeks)

– 60 mg of testosterone isocaproate (duration of effect: 1-3 weeks)

– 100 mg of testosterone decanoate (duration of effect: 2-4 weeks)

The diversity of the esters that compose it allows Sustanon to act in several ways, both short-term and long-term, as shown by the durations of effect of each of the esters mentioned. upper.

This composition diversified also allows Sustanon to provide a satisfactory increase in muscle mass from a qualitative and quantitative point of view: the gains are not only significant, in mass as well as in strength, but in addition the mass acquired is denser and better quality than with some testosterone esters which create more water retention.

Lots of bodybuilders use Sustanon 250 in stack with Deca-Durabolin or Dianabol to obtain rapid and significant gains in muscle mass.

To get winnings better quality muscle, Sustanon is used with Primobolan, Parabolan or Anavar.

It is often necessary to use an anti-estrogen like Nolvadex or Proviron to avoid gynecomastia, as well as HCG or Clomid in cases where the cycle exceeds 6 weeks, in order to restart the natural production of testosterone in the testicles as soon as the cycle stops.

Omnadren

Omnadren 250 is a mixture 4 testosterone esters,

and whose composition is as follows:

– 30 mg of testosterone propionate

– 60 mg of testosterone phenylpropionate

– 60 mg of testosterone isohexanoate

– 100 mg of testosterone hexanoate

Omnadren 250 has an identical composition to that of Sustanon 250, except that testosterone isocaporate has been replaced by testosterone isohexanoate and testosterone decanoate by testosterone hexanoate. This makes Omnadren a more potent form of testosterone than Sustanon, with more pronounced positive and negative androgenic effects. Omnadren produces a rapid and significant gain in strength and volume, accompanied by considerable water retention.

This last gives the acquired musculature a smooth and somewhat flabby appearance. This excludes Omnadren 250 from competition preparations. Also, unlike Sustanon, Omnadren converts very easily into estrogen and leads to an even greater risk of gynecomastia. This side effect can be combated by using Nolvadex and Proviron in a stack.

Many athletes combine Omnadren with strong anabolics like Deca or Equipoise. Combined with powerful oral products like Anadrol or Dianabol, Omnadren 250 produces dramatic mass and strength gain

Estandron

Estandron is a mixture of 3 esters of testosterone which has the particularity of containing an estrogen hormone in small quantity, estradiol. Its composition is as follows:

– 20 mg of testosterone propionate (duration of effect: 3-4 days)

– 40 mg of testosterone phenylpropionate (duration of effect: 1-3 weeks)

– 40 mg of testosterone isocaproate (duration of effect: 1-3 weeks)

– 4 mg estradiol phenylpropionate

– 1 mg of estradiol benzoate

The 3 testosterone esters that make up Estandron are exactly the same as those found in Sustanon 250, and moreover in identical proportions (twice as much isocaproate and phenylpropionate as propionate).

This composition confers thus to Estandron androgenic effects similar to those of Sustanon.

However Estandron does not contain testosterone decanoate, therefore its duration of action is only 3 weeks, not 4 weeks as in the case of Sustanon 250.

The presence of estradiol, an estrogen hormone, increases vascularization, and therefore sports performance.On the other hand, the risk of gynecomastia and fatty retention is of course particularly increased, which is why one can wonder if the game is worth the candle.

Sten

Sten is an American product composed of testosterone added to DHEA.

The product comes in 120mg ampoules containing 100mg of testosterone and 20mg of DHEA. As far as its effects are concerned, they are quite similar to those of Sustanon 250, but weaker, due to the small amount of dihydrotestosterone (DHT) that Sten contains.