Source comparison
TB-500 Research Body Composition Tracking — Comparison
DEXA Scan Detects 200–400g lean mass changes in specific body segments. Gold standard for regional composition Every 4 weeks (maximum sensitivity without excessive radiation exposure) $75–$150 per scan Establishing net lean tissue accrual versus fat mass reduc
This comparison does not assign a generated winner or score.
- DEXA Scan
- Detects 200–400g lean mass changes in specific body segments. Gold standard for regional composition
- Every 4 weeks (maximum sensitivity without excessive radiation exposure)
- $75–$150 per scan
- Establishing net lean tissue accrual versus fat mass reduction across full observation period. Required baseline and endpoint
- Circumference Measurements
- Detects 3–5mm changes at injury sites when standardized to bony landmarks. Highly sensitive to localized hypertrophy
- Weekly (same day/time to control hydration variables)
- $0 (requires only measuring tape and trained measurer)
- Tracking site-specific tissue remodeling where TB-500 concentrates effects. Shoulders, knees, Achilles regions
- Bioelectrical Impedance (BIA)
- Poor sensitivity for TB-500 research. Hydration fluctuations exceed peptide-induced lean mass changes
- Not recommended for TB-500 protocols
- $25–$50 per test
- Insufficient precision. BIA variance (±2–3% body fat) masks TB-500's localized effects entirely
- Ultrasound Tissue Thickness
- Detects 1–2mm changes in muscle thickness and tendon cross-sectional area. Excellent for injury site monitoring
- Bi-weekly (requires trained sonographer for consistency)
- $50–$100 per session
- Visualizing collagen density improvements and localized muscle fiber hypertrophy at exact injury sites