As a patient, you have a right to know about needle quality

Different quality needles can influence the sensation a patient will feel. Lower grades of needles may cause more uncomfortable sensations due to needle tip imperfections. Higher grade needles are generally better made, and produce more comfortable sensations.
Lower-grade needles are less costly, so cost-conscious clinics may opt for these brands. Better quality needles are more expensive due to higher production standards and better surgical steel.
It is your right to ask about the needles used and request to see the brand of needle. If the practitioner makes you feel uncomfortable or tries to brush off your request, this is a red flag and you may want to reconsider your choice of practitioner.
It is within your right to request the style of needle you are most comfortable with. As higher-end needles cost a bit more, some practitioners may add a small additional fee for treatments using premium needles.