Sustanon 300 Dosage, Cycle, Benefits, Side Effects with Results

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Written By Jonathan Deventer

Sustanon 300 is a form of testosterone. It’s an anabolic steroid commonly used by bodybuilders, weightlifters, and athletic enthusiasts wishing to accelerate muscle growth and development, increase testosterone levels, and boost libido. But what is it? Is it safe? What about dosage recommendations and potential side effects? Before taking any form of testosterone, know how it affects the body. Buy Testosterone online here.

Sustanon 300 Info

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Sustanon 300 is classified as an anabolic steroid. It contains four different esters:

  • Propionate – 30 mg
  • Phenylpropionate – 60 mg
  • Isocaproate – 60 mg
  • Decanoate – 100 mg

In most cases, the milligram strength of each of the four esters in Sustanon 300 or 250 is consistent, but the milligram strength of the testosterone is slightly different. For example, Sustanon 250 contains 250 mg of testosterone while Sustanon 300 contains 300 mg of testosterone.

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Manufactured by Atlas Pharmaceuticals of Stockholm, Sweden, as well as other manufacturers around the world including Genomex Pharma and Lixus Labs, it is a potent form of injectable that is marketed for its potential to:

  • increase muscle mass
  • stimulate anti-catabolic effects
  • increase red blood cells
  • improve transportation of oxygen
  • enhance endurance
  • increase libido

Atlas Pharma recommends the use of a Sustanon 300 cycle for cutting when it comes to athletic and bodybuilding uses. However, it should be noted that medical communities discourage the use of any form of steroid for athletic performance or enhancement. Testosterone is a powerful hormone that was originally designed to treat hypogonadism or chronically low levels of testosterone in males that interferes with fertility, libido, muscle development and growth, secondary sex male characteristics, and even emotions.

While it is and has been used to treat hypogonadism in countries around the world in the treatment of primary and secondary hypogonadism, it has also been used as a support therapy for transsexual female-to-male or male-to-female scenarios. Check out the best cutting cycles here.

Sustanon 300 Side Effects

Steroid Side Effects

Because of the presence of four different forms of testosterone, it is very potent and may cause a number of side effects, mainly when it comes to estrogenic effects. Some of the more common Sustanon 300 side effects include these estrogenic effects, which are caused by increased levels of estrogen in males. Males produce small amounts of estrogen in a careful balance of estrogen to testosterone levels in the blood.

Increased levels of estrogen in males can contribute to side effects such as water retention and gynecomastia (increased growth of breast tissues). Local reactions at the injection site such as burning, pain, stiffness, the eruption of acne, and other skin changes may also occur. Aggression, voice changes, and possible hypertrophy of the prostate are probable or at least have been linked to its androgenic components and properties.

It should be noted that a man using the drug may experience an increased level of estrogenic or feminine effects, while a woman using the product may develop an increased risk of masculine traits. Some of the symptoms associated with women using Sustanon 300 (or any other form) include:

  • deepening voice
  • growth of hair on the face and body
  • aggression
  • menstrual disorders

A number of other potential side effects with the use of Sustanon 250 or 300 can include anything from mood changes to increased anxiety, and nausea, to hypertension, priapism, and liver dysfunction. Always discuss the use of any hormone product, especially an injectable or topical application method, with your doctor.

Bodybuilders, weightlifters, and athletes taking testosterone are often recommended to also take drugs to minimize estrogenic effects. These drugs are known as anti-estrogens. Dosage recommendations vary, with anything from 300 to 1,000 mg a week for men.

Testosterone Sustanon 300 Reviews

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Be aware that many products, including Sustanon 300 and other forms, may contain peanut oil and other ingredients that can contribute to allergic reactions. Use is contraindicated with anyone who has been diagnosed with epilepsy or a history of migraine headaches, as well as other medical conditions.


According to the manufacturer, users can contribute to an increased risk of complications for those diagnosed with any liver, renal, or cardiac condition. Because of its effects, all forms of testosterone are contraindicated for anyone who is pregnant or breastfeeding.

When it comes to Sustanon 300 dosage, use caution and discretion. Purchasing testosterone without a prescription is illegal in numerous countries around the world. The dangers of purchasing Sustanon or other forms of testosterone through underground laboratories or black-market resources are also risky. Manufacturing standards, quality of Sustanon 300 ingredients, and even counterfeited products are just a few things to consider for individuals considering purchasing testosterone without a prescription.

Sustanon 300 results are because it is a potent form of testosterone injection. Always weigh the risks against perceived benefits before using.

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  1. Agarwal PK, Oefelein MG. Testosterone replacement therapy after primary treatment for prostate cancer. J Urol. 2005;173:533–6. [PubMed] [Google Scholar]
  2. Amory JK, Chansky HA, Chansky KL, et al. Preoperative supraphysiological testosterone in older men undergoing knee replacement surgery. J Am Geratr Soc. 2002;50:1698–701. [PubMed] [Google Scholar]
  3. Amory JK, Watts NB, Easley KA, et al. Exogenous testosterone or testosterone with finasteride increases bone mineral density in older men with low serum testosterone. J Clin Endocrinol Metab. 2004;89:503–10. [PubMed] [Google Scholar]
  4. Araujo AB, O’Donnell AB, Brambilla DJ, et al. Prevalence and incidence of androgen deficiency in middle-aged and older men: estimates from the Massachusetts Male Aging Study. J Clin Endocrinol Metab. 2004;89:5240–7. [PubMed] [Google Scholar]
  5. Barett-Connor E, Goodman-Gruen D, Patay B. Endogenous sex hormones and cognitive function in older men. J Clin Endocrinol Metab. 1999;84:3681–5. [PubMed] [Google Scholar]
  6. Belanger A, Candas B, Dupont A, et al. Changes in serum concentrations of conjugated and unconjugated steroids in 40- and 80-year old men. J Clin Endocrinol Metab. 1994;79:1086–90. [PubMed] [Google Scholar]
  7. Bhasin S, Woodhouse L, Casaburi R, et al. Older men are as responsive as young men to the anabolic effects of graded doses of testosterone on the skeletal muscle. J Clin Endocrinol Metab. 2005;90:678–88. [PubMed] [Google Scholar]
  8. Bhasin S, Woodhouse L, Storer TW. Proof of the effect of testosterone on skeletal muscle. J Endocrinol. 2001;170:27–38. [PubMed] [Google Scholar]
  9. Brill K, Weltman AL, Gentili A, et al. Single and combined effects of growth hormone and testosterone administration on measures of body composition, physical performance, mood, sexual function, bone turnover, and muscle gene expression in healthy older men. J Clin Endocrinol Metab. 2002;87:5649–57. [PubMed] [Google Scholar]
  10. Cherrier MM, Asthana S, Plymate S, et al. Testosterone supplementation improves spatial and verbal memory in healthy older men. Neurology. 2001;57:80–8. [PubMed] [Google Scholar]
  11. Cherrier MM, Matsumoto AM, Amory JK, et al. Characterization of verbal and spatial memory changes from moderate to supraphysiological increases in serum testosterone in healthy older men. Psychoneuroendocrinology. 2006 [Epub ahead of print] [PMC free article] [PubMed] [Google Scholar]
  12. Clague JE, Wu FC, Horan MA. Difficulties in measuring the effect of testosterone replacement therapy on muscle function in older men. Int J Androl. 1999;22:261–5. [PubMed] [Google Scholar]
  13. Debigare R, Marquis K, Cote CH, et al. Catabolic/anabolic balance and muscle wasting in patients with COPD. Chest. 2003;124:83–9. [PubMed] [Google Scholar]
  14. English KM, Jones RD, Jones TH, et al. Testosterone acts as a coronary vasodilator by a calcium antagonistic action. J Endocrinol Invest. 2002;25:455–8. [PubMed] [Google Scholar]
  15. English KM, Steeds RP, Jones TH, et al. Low-dose transdermal testosterone therapy improves angina threshold in men with chronic stable angina: A randomized, double-blind, placebo-controlled study. Circulation. 2000;102:1906–11. [PubMed] [Google Scholar]

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