Is it safe to put superglue on cuts?

Most of the time: Superglue works really well on something like a paper cut. It can be used on larger and deeper cuts, but there are limits. Not every cut will get closed properly with superglue. Also know it is important to clean the wound cavity before closing it, and also important to know. The superglue is applied only to the surface of the skin, never inside the cut.

Depends: Cracked skin on fingertips and heels that form fissures can be sealed with super glue. Also cracked nails. There is a product called dermabond designed for the specific purpose of sealing many cuts, wounds, and incisions together as effectively as stitches. However, there is always the risk of developing an allergic contact dermatitis to the cyanoacrylates found in super glues.

No, too risky: Although you may have heard of this being done, it is not safe to do so for all of these need to be considered: 1) depth of the cut, 2) location of the cut, 3) possible tendon or ligament involvement, 4) possibility of infection, 5) possibility of wound dehiscence/re-opening, 6) sterility of the super glue, 7) length of time from the cut to time of repair, and 8) proper alignment of wound edges.

NO: Conventional superglue acc has toxic chemicals in it. Emergency and surgical centers have a product called dermabond which is safe.