SP-Laboratories HALOTEST



Package: 30 tabs (10mg/tab)
Active Substance: Fluoxymesterone
Product name: Halotest, Halo, Halotestin


Halotest, also known as Fluoxymesterone, is a powerful oral drug manufactured by SP-Laboratories. It has gained recognition in the fields of bodybuilding and sports due to its unique properties. In this article, we’ll explore the general description, indications, contraindications, uses in bodybuilding and sport, medical action, combining with other drugs, dosage, and potential side effects of Halotest.

General Description:

Halotest is a synthetic derivative of the male hormone testosterone, classified as an anabolic steroid. It is renowned for its high androgenic properties, making it one of the strongest androgenic-anabolic steroids available. SP-Laboratories formulates Halotest in oral tablet form, allowing for convenient and rapid administration.


Halotest is primarily prescribed for medical purposes in cases of androgen deficiency, delayed puberty, and other conditions where increasing testosterone levels is necessary. However, it is crucial to note that Halotest should only be used under strict medical supervision.


Despite its medical applications, Halotest carries various contraindications:

  1. Prostate Cancer: Halotest is contraindicated in individuals with prostate cancer or a history of prostate-related issues.
  2. Breast Cancer: It is also contraindicated in patients with breast cancer or a history of this condition.
  3. Liver Dysfunction: Halotest can exert stress on the liver, and individuals with pre-existing liver conditions should avoid it.
  4. Pregnancy and Nursing: Halotest is not recommended for pregnant or nursing women, as it can cause virilization in female fetuses or infants.
  5. Hypersensitivity: Individuals who exhibit hypersensitivity or allergies to Fluoxymesterone or any of its components should not use Halotest.

Uses in Bodybuilding and Sport:

Halotest’s popularity in the bodybuilding and sports communities arises from its ability to provide significant strength gains without substantial weight gain. Athletes appreciate it for its capacity to enhance aggression, competitiveness, and power, all of which are advantageous in strength sports like powerlifting.

Additionally, Halotest can offer a hardening effect on muscles, making it valuable during the cutting phase of bodybuilding. It helps athletes achieve a lean and chiseled appearance by reducing subcutaneous fat.

Medical Action:

Halotest operates by binding to androgen receptors in the body, subsequently promoting muscle growth and increasing bone density. This anabolic effect is what makes it appealing to bodybuilders and athletes. Moreover, it also boosts red blood cell production, enhancing endurance and stamina.

Combining with Other Drugs:

When used in a bodybuilding or athletic context, Halotest is often stacked with other compounds to maximize its effects while minimizing potential side effects. Commonly combined drugs include:

  1. Testosterone: Combining Halotest with testosterone can help mitigate some of the androgenic side effects and maintain healthy hormone levels.
  2. Anavar (Oxandrolone): Anavar is often used alongside Halotest to achieve a synergistic effect on muscle hardness and fat loss.
  3. Arimidex (Anastrozole): To manage estrogen-related side effects, an aromatase inhibitor like Arimidex may be included in the stack.


The appropriate dosage of Halotest varies depending on individual factors, including experience level, goals, and tolerance. However, a common dosing regimen for bodybuilding purposes is typically 10-20 mg per day for 2-4 weeks. Due to its hepatotoxic nature, prolonged use should be avoided.

Medical supervision is essential when determining the correct dosage to prevent potential health risks.

Side Effects:

Halotest is associated with several side effects, which can vary in intensity among users. Common side effects include:

  1. Liver Toxicity: Halotest can strain the liver, leading to liver damage or dysfunction with prolonged use.
  2. Cardiovascular Issues: It may contribute to cardiovascular problems, including high blood pressure and an increase in LDL cholesterol.
  3. Androgenic Effects: Users may experience androgenic side effects such as acne, oily skin, hair loss (in individuals predisposed to male pattern baldness), and increased facial or body hair.
  4. Mood Swings: Halotest can also affect mood, leading to increased aggression or irritability, commonly referred to as “roid rage.”
  5. Virilization in Females: Female users are at risk of virilization, which includes symptoms like deepening of the voice, clitoral enlargement, and menstrual irregularities.
  6. Hormone Suppression: Prolonged use can lead to the suppression of natural testosterone production, necessitating post-cycle therapy (PCT) to restore hormonal balance.


Halotest (Fluoxymesterone) by SP-Laboratories is a potent oral drug with a range of medical applications and significant popularity in the bodybuilding and sports world. While it offers benefits like enhanced strength and muscle hardness, its use should be approached with caution due to the potential for serious side effects. Always consult with a healthcare professional before considering Halotest for any purpose, and adhere to safe and responsible usage practices.