However, like all cosmetic procedures there will always be risks and side effects. It is always to your advantage that you know the possible dangers of the treatments you plan to have. Although, the treatments are not surgical procedures, it's still not 100% guaranteed safe from risks and negative side effects.

Some of the risks and disadvantages are bacterial infection, allergic reaction, bruising, redness, swelling, open sores, abscesses, scarring, lumpiness and peeling.

Allergic reaction is considered one of the major risks. However, allergic reactions such as injections, depends entirely on the patient. Not everyone will be allergic to the agent, but tests are done prior to treatments to determine if the patient is allergic to the components of the said product to make sure that there will be no complications whatsoever. You should be aware of the fact that the outcomes of treatments done through injection methods are not always predictable.

Some people are allergic to products derived of bovine which is the source. Allergic reactions occur to patients allergic to this particular product therefore should not receive or undergo treatment. Another risk factor that may be developed is the anesthetic reaction. This is due to lidocaine or local anesthetic agent found in liquid collagen injections.

There are cases when prolonged itching, swelling and redness are experienced at the part of the injected skin. In some cases firmness may be felt as well. The risks that there can be a bacterial infection or complications are possible with these reactions. Before you undergo collagen injections or any type of cosmetic surgery for that matter, it is advised to consult a physician and have yourself fully evaluated to determine if is right for you.