Test Mix


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Test-Comp 250 from Unigen is an anabolic androgenic steroid with a long acting effect. The product is based on a mixture of testosterone. Release-liquid form for injection in vials of 10 ml (dose 250).

The composition of the Test-Comp 250 Unigen mix includes four testosterone esters: phenylpropionate, isocaproate, propionate, decanoate. Due to the gradual disclosure of each part, when it enters the body, a long-lasting action of the product occurs. Although regular injections are not necessary, it is guaranteed that the athlete's hormone levels will remain at the same high level for a long time.

The oily base of the main active ingredient guarantees the impossibility of dissolving it in water and keeping it in fat accumulation until the total elimination of the product from the body.

Effects Test-Comp 250 Unigen

  • increase muscle volume in a short time through increased protein synthesis,
  • prevent the destruction of muscle fibers due to the suppression of cortisol production (anti-catabolic effect),
  • greater resistance thanks to the better production of red blood cells, which are oxygen carriers for the tissues,
  • increase a healthy appetite for optimal muscle growth without the risk of general waste,
  • stabilization of the balance of phosphorus and nitrogen,
  • increased libido and sexual desire during your period.

Negative effects that occur in the context of steroid administration include androgenic reactions.

Pharmacodynamic properties:

Sustanon is made up of four testosterone esters (propionate, phenylpropionate, isocapronate, and decanoate).

Testosterone is the main male sex hormone synthesized and secreted by the testicles.It stimulates the growth and development of the male sexual organs and secondary sexual characteristics (maturation of the prostate, seminal vesicles, penis and scrotum, distribution of male hair on the face, pubis, chest), development of the larynx, body muscles and distribution of the fat. Maintains nitrogen, sodium, potassium and phosphorus, improves anabolism and reduces protein catabolism. A premature increase in the concentration of testosterone in the blood plasma in the period before puberty causes the pineal gland to close down and growth to stop. It stimulates the production of erythropoietin and erythrocytes. Through the negative feedback mechanism (feedback), it inhibits the secretion of luteinizing and follicle-stimulating hormones from the pituitary gland and inhibits spermatogenesis.

In women, it inhibits the gonadotropic function of the pituitary gland, the function of the ovaries and the mammary glands, and causes endometrial atrophy. The antagonistic action of estrogens is used in the treatment of uterine fibroids, endometriosis, breast cancer. It shows a beneficial effect on the ailments of the climacteric period.

Pharmacokinetic properties:

Testosterone esters included in the preparation have different rates of absorption and excretion, which provides a fast and long-lasting effect (up to 4 weeks) after a single injection: Testosterone Propionate acts during the first day, the effect of Testosterone Phenylpropionate testosterone and isocapronate starts 24 hours after injection and continues for up to 2 weeks Testosterone decanoate starts working later but lasts longer. In the blood, nearly 98% of testosterone is bound to a specific globulin moiety that binds testosterone and estradiol.Biotransformation occurs in the liver to various 17-ketosteroids, which are excreted in the urine after conjugation with glucuronic or sulfuric acid (approximately 90%). About 6% of the absorbed drug is excreted free in the feces.


In men androgen insufficiency after castration, eunuchoidism, hypopituitarism, impotence of hormonal origin, symptoms of male menopause (decreased libido, mental and physical activity), some forms of infertility with reduced spermatogenesis, osteoporosis caused by androgen insufficiency, in women hyperestrogenism, fibroids, endometriosis, breast cancer, osteoporosis.

Application Method

The recommended course of Test-Comp 250 is 3-4 weeks. However, the duration and dosage of drugs should be determined based on the physiological characteristics of the athlete, his experience with the use of steroids and some other factors. Testosterone ester mixture reaches its maximum concentration in the blood after about 15 days.

The dosage of steroids varies from 250 to 750 milligrams per week and injections are done very rarely, once or twice every two weeks.

Test-Comp 250 is not recommended for women.

Side effects

Priapism and other signs of excessive sexual stimulation (frequent erections) in boys in the prepubertal period: accelerated sexual development, increased frequency of erections, enlargement of the penis and premature closure of the epiphyses, damage to spermatogenesis and decreased maturation of sperm , oligospermia and decreased ejaculate volume, prostate abnormalities, in women: bleeding from the birth canal, increased libido, with prolonged use of the drug, virilization symptoms are possible, hirsutism, gynecomastia, seborrhea, acne , oily skin, accelerated hair loss, sodium and water retention, oedema, symptoms of hypercalcaemia, thrombophlebitis, nausea, cholestatic jaundice, increased levels of hepatic aminotransferases (when stopped, they normalize), headache, depression, aggression, anxiety, sleep disorders, paresthesia.


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