It is said that “the eyes are the windows to the soul”, and the eyes play a pivotal role in the overall beauty of the face. However, even the most beautiful eyes can be overshadowed by the appearance of tear troughs, so the demand for tear trough injections is also increasing. The tear trough is a more difficult area to master than other parts of the face, and it is also one of the areas most prone to complications. Therefore, how can you avoid complications when performing tear trough injections? What injection techniques need to be mastered in order to fully address tear trough injections? Here we have compiled six tear trough injection tips: Tip 1: Remove tear troughs according to their causes Tear troughs are categorized into young, old and bags under the eyes, and not all types of tear troughs can be solved by injecting fillers. Not all types of tear troughs can be solved by injecting fillers. Young tear troughs and old tear troughs can be improved by injecting fillers in a “filler” way. The difference between the two is that the younger tear troughs are mainly due to the ligaments being too tough by nature, causing the skin to be pulled and indented. In this case, the indentation is directly in the skin, and the amount of filler is very small and needs to be very precise, making it unsuitable for autologous fat fillers. Under-eye bags type tear troughs, on the other hand, need to undergo under-eye bag removal surgery first, for the situation to see if you need to solve the problem of tear troughs. Tip 2: Elderly tear trough should be comprehensive treatment Candidates over 40 years of age, tear trough depression is obvious, accompanied by obvious skin laxity, often only fill the tear trough, and can not completely solve the problem, but also difficult, at this time the need for comprehensive treatment, need to be combined with the face lifting injections. Tip 3: Choose the right product When using hyaluronic acid to fill this part of the tear trough, the product with small cross-linking degree or small molecular weight should be used. Since the skin in this area is thin, if you choose a product with large cross-linking degree or molecular weight, it will be easy to produce “lumps” or hardness to touch. Tip 4: Prefer deep rather than shallow, prefer less rather than more Tear trough is recommended to be injected into the deeper layers, injected into the periosteum. Deeper injections have fewer entry points and lower bruising rates. If you don’t hit against the periosteum, it is easy to be moved by the orbital diaphragm fat, and if you hit the orbital diaphragm fat, it will swell up a lot, resulting in false eye bags. Redness and swelling are easy to occur if injected too much. If you must inject superficially, only inject a very small amount and massage evenly. Some doctors will find that if you hit the deep, how can not lift up the tear trough, will choose to hit the shallow flat laying up, although the early effect is very good, but it is very easy to have problems. Because playing shallow should not hit the dermis, should hit the fascia, but the tear trough skin is particularly thin, orbicularis oculi muscle and subcutaneous tissue is difficult to peel away, so the injection is very easy to hit the orbicularis oculi muscle, the formation of fibrous parcels, fibrous parcels and no blood transport, easy to get together into a ball. There is melanin in the superficial layer of the skin, if the injection is too shallow, it will make the melanin active, and there will be discoloration. If the injection is too much, it is easy to form hard knots. Tip 5: Remember not to inject into the following places 1, don’t touch the opening of the tear duct, where there are large blood vessels, such as bruises and hematomas will last for half a year, regardless of whether the injection is deep or shallow; 2, avoid injecting into the orbital and orbicularis oris muscle, because the rotation of the eyeballs will lead to the movement of the fat in the bottom of the orbital septum, so that it will be easy to form a pseudo under-eye bags. When injecting, you can let the client’s eyes look upward, and at the same time take the fingers of the left hand against the orbital rim, in order to always sense the position of the injected product and avoid injecting into the orbital area. Tip 6: Push the injection slowly, while pushing the injection while modeling We must be slow when injecting the injection, and need to push the medicine while modeling. Because the skin in the tear trough is thin, this allows the filler to spread evenly over the tear trough depression to achieve the best results.