Source comparison
TB-500 Vial Size Comparison
2mg Single-subject, short protocols (4–6 weeks, weekly dosing) 2mg in 2mL = 1mg/mL 4 doses Lowest per-vial cost but highest per-mg cost Excellent. Simple math, 0.5mL draws Low if used fully 5mg Multi-subject or moderate-duration protocols (8–12 weeks, twice-we
This comparison does not assign a generated winner or score.
- 2mg
- Single-subject, short protocols (4–6 weeks, weekly dosing)
- 2mg in 2mL = 1mg/mL
- 4 doses
- Lowest per-vial cost but highest per-mg cost
- Excellent. Simple math, 0.5mL draws
- Low if used fully
- 5mg
- Multi-subject or moderate-duration protocols (8–12 weeks, twice-weekly dosing)
- 5mg in 2mL = 2.5mg/mL
- 10 doses
- Mid-range. Balances cost and flexibility
- Good. 0.2mL draws manageable with insulin syringe
- Moderate. Some waste if protocol shortened
- 10mg
- High-volume research, large animal models, daily dosing protocols
- 10mg in 2mL = 5mg/mL
- 20 doses
- Best per-mg cost
- Requires precise measurement. 0.1mL for 500mcg
- High if protocol ends early or subject count low
- Bottom Line
- Choose based on total dose draws within 28 days post-reconstitution
- Higher concentration = smaller injection volume but tighter measurement tolerance
- Unused peptide after day 28 is wasted regardless of sterile technique
- Larger vials save money only if you use >80% before degradation
- Match concentration to your syringe's precision limit (±0.05mL for insulin syringes)
- Calculate total protocol needs before buying. Under-buying costs more than over-buying in restocking and batch variability