There are two variations of needles that are commonly used to administer subcutaneous injections. The first is an insulin syringe. This type of syringe holds 1mL of your compound and usually has markings from 10 to 100. That would mean if you’re supposed to take a 0.5mL dose you’d only fill the syringe to the 50 mark.
The second most common syringe is the tuberculin syringe. It has a needle that is slightly longer than an insulin syringe and is marked every 0.1mL. It too holds 1mL of the compound.