Three Standard Sizes
Insulin syringes for peptide reconstitution come in three sizes. Each has different markings and is suited for different dose ranges.
1 mL / 100 Unit Syringe
- Capacity: 1 mL (100 units)
- Markings: Every 2 units (major lines every 10)
- Best for: Doses between 10 and 100 units
- Trade-off: Covers the widest range but has the least precision for very small doses
This is the most common syringe and a good default choice for most peptide protocols.
0.5 mL / 50 Unit Syringe
- Capacity: 0.5 mL (50 units)
- Markings: Every 1 unit (major lines every 5)
- Best for: Doses under 50 units
- Trade-off: Better resolution than the 1 mL but cannot hold larger doses
Ideal when your dose falls between 5 and 40 units.
0.3 mL / 30 Unit Syringe
- Capacity: 0.3 mL (30 units)
- Markings: Half-unit increments
- Best for: Micro-dosing under 30 units
- Trade-off: Most precise, but very limited capacity
Use this for protocols requiring sub-5-unit precision.
Which Should I Buy?
If you are unsure, start with the 1 mL syringe. It handles virtually every dose you will encounter. Move to a smaller syringe only if your calculated dose is consistently under 30 units and you want finer markings.
Our supply calculator recommends the best syringe size based on your calculated dose automatically.