Core Labs Mass + Rx 60 Caps- Non-Steroidal Muscle Enhancers


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Core Labs X MASS+ is a supplement formulated for those focused on gaining muscle mass and enhancing their overall physique. As a non-steroidal muscle enhancer, it appeals to athletes and bodybuilders looking for support in their muscle-building efforts without resorting to anabolic steroids. The product is designed to be a potent addition to a well-structured diet and training regimen.


  • NAC (N-Acetyl L-Cysteine): At 350 mg per serving, NAC is known for its antioxidant properties, which are crucial for protecting the liver and supporting detoxification pathways within the body.
  • 2,17-dimethyl-5-androstan-17-ol-3,3’azine: This ingredient, provided at 10 mg per serving, is a derivative known for its anabolic properties, which may promote muscle growth and increase strength.
  • 7-alpha-methyl-estra-4-ene-3,17-dione: Also at a dose of 10 mg per serving, this compound is included for its potential to support muscle hardness and lean gains.
  • Vitamin E (TPGS): Included at 10 mg per serving, Vitamin E is an antioxidant that helps to combat oxidative stress within the body.


Due to its high anabolic potential, two capsules of Mass + RX can be taken daily. However, the manufacturer recommends breaking the daily dose into two smaller ones to enjoy the greater effectiveness of the formula. In such a scheme, take one capsule in the morning and one capsule in the evening.


Mass + Rx from Core Labs, which includes high-impact anabolic ingredients, requires a disciplined approach to supplementation. This includes a proper on-cycle regimen, post-cycle therapy (PCT), and supportive measures to protect the body’s vital systems, particularly the liver. Here’s a recommended approach:

Supplementation Cycle for Mass + Rx:

On-Cycle Phase:

Duration: Considering the potency, a cycle should be limited to 4-6 weeks.

Dosage: The manufacturer suggests two capsules daily, split into two doses – one in the morning and one in the evening.

Supportive Measures: Given the inclusion of NAC (N-acetylcysteine), additional liver support may not be necessary, but it’s wise to consider comprehensive on-cycle support, including cardiovascular and hormonal health.

Off-Cycle Phase:

Duration: An off-cycle of at least 6-8 weeks is advised to allow the body to recover and reset its natural hormonal balance.

Abstinence: Cease all anabolic supplements during this period.

Post-Cycle Therapy (PCT):

Testosterone Support: Supplements that encourage the body’s natural testosterone production, like D-aspartic acid, herbal extracts, or zinc, should be used.

Estrogen Regulation: If necessary, incorporate an over-the-counter aromatase inhibitor to manage potential increases in estrogen.

Cortisol Management: Consider adding cortisol blockers to maintain the gains achieved during the cycle.

Protective Measures:

Antioxidants: Additional antioxidants like Vitamin C may help mitigate oxidative stress.

Cardiovascular Health: Continue Vitamin E supplementation and consider Omega-3 fatty acids and CoQ10.

Joint Care: Supplements like Glucosamine and Chondroitin can be beneficial, mainly if the cycle includes heavy lifting.

Monitoring and Adjustments:

Regular Health Checks: Blood tests to monitor liver enzymes, lipid profiles, and hormonal panels before, during, and after the cycle are recommended.

Adaptation: Adjust the dose, stop the cycle if adverse reactions occur, and seek medical advice.