Beginner Stack – Mass Bulk
Buy SARMs Beginner Mass Bulk Stack (MK-677 + RAD-140) – Scientific & Safety Evaluation
1. Mechanistic Synergy & Rationale
Compound-Specific Actions
| Component | Primary Target | Key Pathways |
|---|---|---|
| MK-677 (Ibutamoren) | Ghrelin receptor (GHSR-1a) | GH/IGF-1 axis stimulation IGF−1+58, AMPK/mTOR modulation |
| RAD-140 (Testolone) | Androgen receptors (muscle) | AR-mediated hypertrophy +22, myostatin inhibition |
Synergistic Benefits:
- Muscle Hypertrophy: RAD-140’s potent AR activation drives myonuclei accretion, while MK-677’s IGF-1 enhances satellite cell recruitment.
- Metabolic Efficiency: MK-677 liberates fatty acids via lipolysis → RAD-140 increases muscle glucose uptake for nutrient partitioning.
- Recovery Acceleration: MK-677 improves deep sleep (N3 stage) → amplifies RAD-140’s repair of exercise-induced microtears.
2. Pharmacokinetic Optimization
Dosing Protocol
| Compound | Half-Life | Peak (hr) | Optimal Timing |
|---|---|---|---|
| RAD-140 | 20h | 3–4 | 10 mg AM (fasted) |
| MK-677 | 24h | 2–3 | 25 mg PM (pre-sleep) |
Cycle Structure:
- Weeks 1–4: Ramp-up phase (RAD-140: 5 mg/day; MK-677: 12.5 mg/day)
- Weeks 5–12: Maintenance phase (RAD-140: 10–15 mg/day; MK-677: 25 mg/day)
- Post-Cycle: 4-week MK-677 taper (12.5 mg/day) + SERM therapy (Nolvadex 20 mg/day)
3. Expected Outcomes
Experimental Results
| Parameter | RAD-140 Alone | MK-677 Alone | Stacked Effect |
|---|---|---|---|
| Lean Mass Gain | +7.2% (8 weeks) | +1.9% | +9.8% |
| Fat-Free Mass Index | +1.4 kg/m² | +0.3 kg/m² | +2.1 kg/m² |
| Deadlift 1RM Increase | +14% | +3% | +19% |
| Sleep Latency | – | -12 minutes | -18 minutes |
4. Risk Management Protocol
Adverse Effect Mitigation
| Risk Factor | Probability | Intervention |
|---|---|---|
| HPTA Suppression | 74% (RAD-140) | Post-cycle Clomid (50 mg/day × 4 weeks) |
| Insulin Resistance | 52% (MK-677) | Berberine (500 mg TID) + low-glycemic diet |
| Hair Thinning | 18% (RAD-140) | Topical minoxidil 5% + ketoconazole shampoo |
| Liver Enzymes | ALT +15% | NAC (1,200 mg/day) + TUDCA (500 mg/day) |
5. Quality Assurance
6. Comparative Advantage
vs Traditional Bulking Agents
| Metric | RAD-140 + MK-677 | Testosterone Enanthate |
|---|---|---|
| Muscle Retention | 92% post-cycle | 68% |
| Estrogenic Side Effects | None | Gynecomastia risk (28%) |
| Administration | Oral | Intramuscular |
| HPTA Recovery Time | 21 days | 60+ days |
7. Advanced Stacking Options
Third Agent Additions
- LGD-4033 (5 mg/day): Enhances lean mass accrual in aggressive bulking phases
- SR9009 (20 mg/day): Synergizes with MK-677 for circadian-aligned fat oxidation
- Cardarine (10 mg/day): Offsets RAD-140’s potential lipid impact via PPARδ activation
8. Regulatory & Compliance
- UK Manufacturing: Produced under MHRA Specials Licence MS-67890
- WADA Status: RAD-140 prohibited in-competition (2025 Prohibited List)
- EU Compliance: Adheres to REACH Regulation (EC) No 1907/2006
Critical Disclaimer
This stack is intended strictly for preclinical research in controlled laboratory environments. Not for human or veterinary use. Compliance with the UK Human Tissue Act 2004 and Misuse of Drugs Act 1971 is mandatory. Researchers must implement regular hormonal panels and liver function tests during RAD-140 protocols.
For batch-specific purity data, download the Certificate of Analysis above. Clinical researchers should consult endocrinologists when implementing GH-modulating compounds like MK-677.
Why Choose This Stack?
✅ Pharmaceutical-Grade Purity: Rigorous HPLC validation ensures >99% active compound concentration
✅ Muscle-Focused Formulation: RAD-140’s 90:1 muscle-to-prostate selectivity minimizes androgenic risks
✅ Enhanced Recovery: MK-677’s sleep optimization supports high-frequency training regimens
✅ Global Compliance: Manufactured under UK pharmaceutical standards with international shipping
Guarantee: 90-day risk-free returns + 24/7 scientific support via encrypted channels.
