Wash your hands and the outside of your lip with liquid antibacterial soap. Dry all surfaces of your skin with a clean paper towel. Wash your new jewelry with another drop of antibacterial soap and dry it with another paper towel.
Remove the jewelry from your piercing. For a captive bead ring, hold the bottom of the ring steady with one hand and push the bead sideways with your other hand until it pops out. Rotate the ring out of the hole and slide it off your lip. For a labret stud, hold the bar gently but firmly between your front teeth and unscrew the bead by twisting it to the left. Slide the bar through the hole on the inside of your mouth.
Pull outward on your lip to stretch the piercing hole.
Grasp the flat disc on the front of the labret retainer. Slide the bar of the retainer through your piercing from the inside of your lip to the outside. The flat disc should be inside your mouth, the pointed end on the outside.
Roll the O-ring onto the pointed end of the jewelry. Slide the ring up against your face to hold the retainer snugly in place.