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Core labs EPI RX

Core Labs 60 CAPS

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Core Labs X EPI Rx – Advanced Anabolic & Lean Muscle Builder

Core Labs X EPI Rx is a highly effective anabolic supplement that promotes lean muscle growth, increased strength, and enhanced muscle definition. This advanced muscle builder is formulated with powerful prohormones and key support ingredients, ideal for athletes, bodybuilders, and fitness enthusiasts looking to achieve a hard, dry, sculpted physique.

EPI Rx features 2,3a-epithio-17a-methyletioallo-cholan-17b-ol, a potent muscle-building compound known for increasing lean muscle mass while reducing water retention and body fat. Combined with N-Acetyl L-Cysteine (NAC) for liver support and Vitamin E TPGS for enhanced absorption, this formula ensures maximum effectiveness and safety during your cycle.

For those who demand extreme muscle growth, improved definition, and a shredded physique—Core Labs X EPI Rx is your ultimate anabolic solution!

How Does Core Labs X EPI Rx Work?

  • Increases Lean Muscle Mass – Promotes muscle hardness, size, and definition with minimal water retention.
  • Enhances Strength & Power – Supports explosive gains and improved athletic performance.
  • Promotes Fat Loss & Vascularity – Helps reduce excess fat while preserving muscle mass, giving you a shredded, dry, and vascular look.
  • Liver & Organ Protection – Includes NAC (N-Acetyl L-Cysteine) to support liver function and detoxification during the cycle.
  • Optimised Absorption & Bioavailability – Vitamin E TPGS enhances nutrient delivery and absorption, ensuring maximum effectiveness.

Why Choose Core Labs X EPI Rx?

  • Extreme Lean Muscle Gains – Helps build solid, dry muscle mass with minimal fat gain.
  • Supports Strength & Endurance – Enhances power output, muscle endurance, and performance.
  • Fat Burning & Hardening Effect – Promotes aesthetic muscle definition and vascularity.
  • Liver Protection & Detoxification – Includes NAC for optimal liver health.
  • Optimised Absorption for Maximum Results – Vitamin E TPGS improves ingredient uptake.
  • Ideal for Cutting & Recomp Phases – Perfect for athletes seeking a lean, ripped physique.

Conclusion – Build Hard, Lean Muscle with Core Labs X EPI Rx!

If you’re looking for a powerful anabolic supplement that supports lean muscle gains, enhanced strength, and a sculpted physique, Core Labs X EPI Rx is your go-to formula. Packed with effective prohormone, liver support, and enhanced absorption ingredients, this supplement delivers accurate results with safety in mind.

Take your muscle-building to the next level with Core Labs X EPI Rx! 🔥

Key Ingredients in Core Labs X EPI Rx


2,3a-Epithio-17a-Methyletioallo-Cholan-17b-ol (20mg)



  • A powerful prohormone that enhances lean muscle gains, improves strength, and promotes fat loss.

  • Supports a dry, ripped physique by reducing water retention and enhancing muscle hardness.

  • Ideal for cutting cycles and recomposition phases.


N-Acetyl L-Cysteine (NAC) – 350mg



  • A potent antioxidant and liver support ingredient that protects the liver from stress and toxins.

  • Essential for maintaining overall health and safety during an anabolic cycle.


Vitamin E TPGS – 10mg



  • Enhances nutrient absorption and bioavailability, ensuring the maximum effectiveness of active ingredients.

  • Provides antioxidant protection and supports muscle recovery.


How to Use Core Labs X EPI Rx?


Recommended Dosage:Take one capsule per day with food.Cycle Length: 4-6 weeks for optimal results.
Post Cycle Therapy (PCT):It is highly recommended to follow up with a proper PCT (Post Cycle Therapy) after using EPI Rx to help restore natural hormone levels and prevent muscle loss.
Who Can Benefit?

  • Bodybuilders & Strength Athletes looking to maximise lean gains and performance.

  • Fitness Enthusiasts aiming for a dry, ripped physique with defined muscle hardness.

  • Those in the Cutting & Recomposition Phases who want to preserve lean muscle while shedding fat.


Disclaimer: This product is a dietary supplement and should not be used as a substitute for a varied diet. Do not exceed the recommended daily dose. Keep out of reach of children. If you are pregnant, nursing, taking medication, or have a medical condition, consult your healthcare professional before use. This product contains Aphrodyne and may cause side effects such as increased heart rate, anxiety, or elevated blood pressure. Use with caution and discontinue use if any adverse reactions occur. Store in a cool, dry place away from direct sunlight. The Food and Drug Administration or any other governmental authority has not evaluated the statements made here. This product is not intended to diagnose, treat, cure, or prevent any disease.

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Core Labs X EPI Rx is a highly effective anabolic supplement featuring 2,3a-epithio-17a-methyletioallo-cholan-17b-ol (Epistane), designed to promote lean muscle growth, increased strength, and enhanced muscle definition. Each bottle contains 60 capsules.

Epistane (2,3a-epithio-17a-methyletioallo-cholan-17b-ol) is a potent prohormone compound known for increasing lean muscle mass while reducing fat and water retention, producing a hard, dry, sculpted physique.

Key benefits include lean muscle mass growth, increased strength, enhanced muscle definition and hardness, reduced water retention, improved vascularity, and overall body composition improvement.

Follow the dosage instructions on the product label. EPI Rx is a potent anabolic supplement formulated for structured cycle-based use by experienced athletes and bodybuilders.

EPI Rx is designed for athletes, bodybuilders, and fitness enthusiasts looking to achieve a hard, dry, sculpted physique through advanced anabolic supplementation.

No. EPI Rx contains potent prohormone compounds and is strictly intended for experienced users. Beginners, women, and individuals under 21 should not use this product.

No. EPI Rx (Epistane) is specifically associated with lean muscle gains without water retention, making it ideal for definition, cutting, and recomposition phases.

Yes. Liver and organ support supplements are essential when using EPI Rx. A post cycle therapy (PCT) protocol should follow any EPI Rx cycle.

As with all prohormone products, side effects are possible. Cycle support and PCT are mandatory. Consult a qualified healthcare professional before starting any prohormone cycle.

Core Labs X EPI Rx is available through Cross The Limits, an authorised UK retailer. Orders placed before 4pm are dispatched the same day, with free UK shipping on orders over £89.

Core Labs

Core Labs

Cross the Limits offers Core Labs supplements, a trusted name in the fitness world known for innovative dietary supplements and advanced training-oriented nutrition. This range delivers high-performance products tailored for athletes at every level, focusing on efficiency and effective goal achievement. By choosing Core Labs at Cross the Limits, fitness enthusiasts gain access to professional-grade formulations designed to maximize physical potential.