Making such a generalisation would not be very accurate. It would be better to say that mesotherapy can provide the desired results if the material to be injected is chosen accurately and is known to be effective.
Unfortunately, the field of "cosmetics" is very open to commercial exploitation, and so we see a number of ineffective procedures being carried out under the guise of "mesotherapy". We see substances with unknown raw materials being used and injected into the skin. Furthermore, these substances are not scientifically proven to be effective. For this reason, mesotherapy should be performed by a dermatologist or a plastic surgery specialist who is both ethical and an expert in the field.

Yes. If your hair is thinning, does not have enough volume or if it is falling out, PRP treatment is an effective way to solve your problems. The earlier this treatment is applied the better the results.

Mesotherapy is applied using micro-injectors or special injection guns produced specifically for mesotherapy.

Mesotherapy is a procedure that takes approximately 10-15 minutes if FDA approved hyaluronic acid preparations are used. In the case of PRP, an additional 20 minutes  are added to the procedure, since the patient's blood must be taken and centrifuged. In this case the process is completed in 30-35 minutes.

Following the doctor's examination of your skin, the doctor will make recommendations based on your needs and your expectations for the procedure. If mesotherapy is determined to be the best procedure for you, the most appropriate type of mesotherapy will be recommended to you. Your doctor will also be able to introduce you to methods that may be deemed to be more effective than mesotherapy. The chosen treatment will be applied following the doctor's examination and based on your preferences.

Mesotherapy is a short procedure that can be easily applied in a clinical setting and does not require anesthesia. If desired, an anesthetic cream for added comfort may be applied before the procedure.

There are no marks of any kind left on your skin after the mesotherapy procedure. There may be slight redness experienced at the injection sites which will subside within a few hours of the treatment.

There is nothing in particular that you need to be aware of, or careful about before the procedure.

Following the mesotherapy procedure, you may experience several hours of redness due to micro-injections made to the skin. Very rarely, tiny bruises may appear that can be easily covered with concealer while they heal. You will not feel any pain after the procedure. You can return to your normal day to day activities following the procedure, however you should wait for a couple of hours before applying makeup.