Core Labs Bulk RX 90 caps


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Core Labs BULK RX


BULK RX is a non-steroidal muscle enhancer and anabolic powerhouse designed for building muscle mass. This innovative formula is meticulously crafted for those seeking fast and stable muscle growth alongside increased endurance and performance. BULK RX delivers impressive strength gains, lean mass, and a sculpted physique without causing water retention or gynecomastia, which are typical side effects associated with prohormones.


BULK RX is a technologically advanced supplement formulated at Core Labs laboratories. It contains the following active substances:

  • Methylstenbolone:
    • A synthetic compound with vigorous anabolic activity, known for increasing testosterone levels in the blood. This leads to accelerated muscle mass-building processes and significantly improved muscle quality. Methylstenbolone creates an exceptionally favorable environment for muscle growth, offering robust gains in muscle mass, noticeable increases in strength, and enhanced vascularity. Its advantage includes being non-aromatizing, with no estrogenic effects.
  • (25 R)-5alpha-Spirostan-2alpha, 3beta, 5alpha-Triol-6-OH/:
    • This combination of sterol and undecanionic ester optimizes bioavailability. As a unique ingredient of natural origin, it is designed to intensify anabolic processes, ensure a positive nitrogen balance, and promote muscle growth. Additionally, it boosts energy and improves protein accumulation in the body.
  • Vitamin E:
    • Known as one of the most potent antioxidants, Vitamin E protects muscles from free radical damage, slows down the process of muscle mass loss, and guards against the development of coronary heart disease. It also aids in the removal of kinase from the bloodstream, slows down the aging process, and supports good eyesight.


  • Recommended Intake: Take 1-3 capsules daily based on individual tolerance and goals. The package contains 90 capsules, providing enough for 30-90 doses, depending on the daily intake.


BULK RX is positioned as an anabolic supplement to enhance muscle mass, strength, and overall physical performance. Given its composition and the potent nature of its components, especially Methylstenbolone, a structured approach to dosing, cycling, post-cycle therapy (PCT), and supportive measures is crucial for maximizing benefits while minimizing potential risks.

Dosing Protocol

  • Daily Intake: Start with 1 capsule daily to assess tolerance. Depending on individual response and goals, the dosage can be increased to a maximum of 3 capsules per day.
  • Timing: If taking more than one capsule daily, spread the doses out with meals to enhance absorption and reduce the potential for gastrointestinal discomfort.

Cycling Protocol

  • Cycle Duration: A typical cycle of BULK RX should last 4-6 weeks. This duration helps balance maximizing gains while limiting potential side effects.
  • Cycle Break: A break of at least 4-6 weeks is recommended after completing a cycle. This off-cycle period allows the body to normalize and recover.

Post-Cycle Therapy (PCT)

  • Necessity of PCT: Given the potent anabolic activity of Methylstenbolone, a PCT phase is essential to help restore the body’s natural hormonal balance.
  • PCT Duration: A PCT regimen should begin immediately after the cycle ends and last 4-6 weeks.
  • PCT Supplements: May include natural testosterone boosters, estrogen blockers, and other hormonal support supplements. Components might include natural extracts like Tribulus Terrestris, Fenugreek, or Ashwagandha and pharmaceutical agents, if necessary and prescribed by a healthcare professional.

On-Cycle Support (Protectives)

  • Liver Protection: Supplements like Milk Thistle or TUDCA (Tauroursodeoxycholic acid) should be considered during the cycle to support liver health due to the potent nature of Methylstenbolone.
  • Cardiovascular Support: Omega-3 fatty acids, CoQ10, and other heart-health supplements may help mitigate any potential cardiovascular strain.

Duration of Use and Breaks

  • Monitoring and Adjustment: Pay attention to your body’s response throughout the cycle and adjust the dosage accordingly without exceeding the maximum recommended intake.
  • Long-Term Use: To prevent undue strain on the body, limit the number of cycles per year to two to three cycles.

Warnings and Precautions

  • Medical Consultation: Always consult with a healthcare professional before starting a prohormone cycle, especially if you have any underlying health conditions.
  • Monitoring: Regular health check-ups and possibly blood tests are recommended to monitor liver health, lipid profiles, and hormone levels.
  • Contraindications: Do not use if under the age of 21, pregnant, nursing, or at risk for health conditions like high blood pressure, liver problems, or heart disease.

By adhering to these guidelines, BULK RX users can achieve muscle-building goals while prioritizing their health and safety. It’s crucial to approach potent supplements like BULK RX with caution, responsibility, and awareness of their potential benefits and risks.

Disclaimer These supplements are intended to support general health and are not intended to diagnose, treat, cure, or prevent any disease. Always consult with a healthcare professional before use, especially if you are pregnant, nursing, taking medication, or have an underlying medical condition. Do not exceed the recommended dose. Supplements should not be used as a substitute for a varied and balanced diet and a healthy lifestyle. In the event of adverse reactions, discontinue use and seek medical advice. Keep out of reach of children. Store in a cool, dry place. The information provided is not a substitute for professional medical advice. These statements have not been evaluated by the Food Standards Agency (FSA).