If you live in the US, find out if your state has laws against buying syringes without a script. There are some states that have laws against it and many that do not. If your state does not have a law against obtaining syringes, just go to your nearest pharmacy and ask for a box. I do it all the time with no problem. I always buy a box when I get down to around 25 or so. Just to give you a heads up, a box of 100 should not cost more than $20.00! If you do not buy a full box, most pharmacies will charge between $.10-$.18 for each. Slins usually go for about $2.50 per pack of 10. Hope this helps!!!