Under eye filler is largely considered safe when seeing a qualified and trained provider. Like all filler injections, under eye filler comes with associated risks. The biggest risk includes those to the eye which is why hyaluronic acid fillers are preferred because they can quickly be reversed and limit the risk of complications.
A typical under eye filler injection is just as safe as any other filler procedure. If you have certain medical conditions or situations that may put you at higher risk, your provider may recommend an alternative treatment.