4-Andro is great for building size and strength. 4-Androsterone benifits Builds Lean Muscle Mass Increases Strength Fast Slight Water Retention Increases Vascularity Speeds Up Muscle Recovery Improve Muscle Conditioning 4-ANDROSTERONE CYCLE & DOSAGE A cycle with 4-Androsterone will last anywhere from 4 to 8 weeks. Based on my research, most users seem to go with 6 to 8 weeks. From my experience, …