M1-4ADD (4ADD) – High-Potency Mass Builder for Research & Performance

M1-4ADD is a powerful, methylated prohormone designed strictly for laboratory research into rapid muscle mass gains, strength enhancement, and performance improvement. Each capsule contains 100mg of 17α-methyl-1,4-androstadiene-3,17-diol, a compound that converts partially to Dianabol (approximately 20%), making it ideal for studying hypertrophy, recovery, anabolic effects, and hormonal responses under controlled research conditions.

This compound is particularly suitable for laboratories investigating mass-building cycles, performance optimization, and post-cycle recovery.

Key Research Benefits

Mass & Strength Gains
Studied for its potential to promote rapid increases in lean muscle size and strength output.

Enhanced Recovery
May assist in reducing muscle fatigue, allowing more frequent and effective training simulations.

Increased Protein Synthesis & Appetite
Supports caloric intake and muscle growth in laboratory research models.

Anabolic Efficiency
Even with partial conversion to estrogenic metabolites, the compound’s profile supports aggressive mass-building research.

High Potency & Verified Composition
Includes lab-grade ingredients with a Certificate of Analysis (COA) for research-grade verification.

Ingredients

• 17α-methyl-1,4-androstadiene-3,17-diol (M1-4ADD) – 100mg per capsule
• Other excipients (corn starch, gelatin) for stable delivery and dosage consistency

Why Choose MK677 Shop

• Trusted USA-based research supplier
• Fast, secure domestic shipping
• Verified lab-grade compounds with batch COA documentation
• Multiple secure payment options

Important Disclaimer

All products sold by MK677 Shop, including M1-4ADD, are intended solely for laboratory research purposes. They are not dietary supplements and are not intended for human consumption. Handle according to local regulations.

This product is intended for laboratory research on healthy adult males. Researchers should follow proper protocols, including post-cycle recovery (PCT) and estrogen control studies, and not exceed recommended duration's.

Stacking Options

Explore our Muscle Build Collection and Prohormones Collection for additional lab-grade research compounds for mass and strength studies.