The vein stabilizer is a small device that: 1) isolates the vein, so it cannot roll from side to side when penetrated; and 2) causes the vein to bulge toward the surface of the skin making it more apparent. The vein stabilizer includes a sterile, two-piece disposable plastic device that isolates the vein in between two plastic tabs which are similar in shape and size. One tab is fixed on the skin on one side close to the vein. The other piece is mobile and slides on an elastic band. The tabs are adjusted to the preference of the IV initiator or the situation on the other side of the vein (big vein, small vein, tortuous vein, collapsed vein, sclerous (hardened) vein, obese patient, etc.).