The purpose of this study is to assess the efficacy of device TRI-ACTIVETM (DEKA M.E.L.A., Itália)in the treatment od cellulite and body contouring.

The present study is a clinical, opened trial and single-center.

The patients will be treated by six laser diodes, localised cooling system and rhythmical intake massage device. Application of the massage will be performed for 8 weeks in a total of 16 treatment sessions: twice a week.

A set of photographs will be taken at visit 1 (baseline), visit 2 and 3 with standardized positions and lighting conditions.

Inclusion Criteria:

1. Written Informed Consent;
2. Subjects agreeing to take part of all procedures of the study (including mechanical massage, photographs), after being fully informed on the objectives and nature of the investigations;
3. Female subjects between 18-45 years;
4. Subjects presenting with cellulite grades I-III on buttocks and thighs;
5. Medical history and physical examination which, based on the investigator's opinion, do not prevent the patient from taking part in the study and use the device under investigation;
6. Female subjects of childbearing age should present a negative urine pregnancy test and should be using an effective contraceptive method (3 months before the enrollement untill the end of the study);
7. Body Mass Index (BMI = weight/height2) beetwen 20,0-25,0;
8. Availability of the subject throughout the duration of the study (60 days);
9. Availability of the subject in maintaining a stable weight during the study (variation less than 2 kg)
10. Subjects with sufficient schooling and awareness to enable them to cooperate to the degree required by this protocol.

Exclusion Criteria:

1. Pregnant women or women intending to become pregnant during the study (next 3 months);
2. BMI superior 25,0;
3. Subjects with diabetes mellitus, cardiac insufficiency, asthma, or bronchitis;
4. Subjects participating in other clinical trials;
5. Subjects with neoplastic disorders, uncontrolled thyroid disorders or uncontrolled hypertension;
6. Subjects with coagulation disorders, using anticoagulants or tendency of bruises;
7. Subjects with vascular disorders (phlebitis or varicose veins) in the area to be treated;
8. Any prior aesthetic surgery affecting the area to be treated (liposuction, Subcision®), 3 months before the study, that may interfere with results;
9. Any other prior anti-cellulite treatment or body measures treatment, 30 days prior to the study;
10. Subjects with inflammation or active infection in the area to be treated.
11. Subjects with a history of adverse effects, which in the investigator's opinion should prevent the patient from participating in the study;
12. Patients with cutaneous or vascular alterations, that difficult visualization and documentation of cellulite;
13. Subjects with a history of medical treatment non-adherence or showing unwillingness to adhere to the study protocol;
14. Subjects who can not come to the visits (one missing visit/ month is allowed);
15. Subjects intending to initiate any intensive sport;
16. Subjects using analgesics, non-hormonal antiinflammatories, antihistaminics, corticosteroids, or diuretics;
17. Subjects tanned, or intending to expose the area of study to sun, artificial UV, or self-tanning during the study;
18. Any condition that, in the opinion of the investigator, can compromise the evaluation of the study.