This study will evaluate the clinical efficacy, safety and the performance of radiofrequency heating and ultrasound delivered by the BTL-585-2 applicator of the BTL-585F system for non-invasive treatment of facial wrinkles and correcting facial skin laxity. The study is a prospective multicenter single-blinded two-arm study. The subjects will be enrolled and assigned into two study groups; group A (RF & US) and B (only RF) which will receive a treatment with different settings. Subjects of both groups will be required to complete four (4) treatment visits and two to three follow-up visits.

This study will evaluate the clinical efficacy, safety and the performance of radiofrequency heating and ultrasound delivered by the BTL-585-2 applicator of the BTL-585F system for non-invasive treatment of facial wrinkles and correcting facial skin laxity. The study is a prospective multicenter single-blinded two-arm study. The subjects will be enrolled and assigned into two study groups; group A (RF & US) and B (only RF) which will receive a treatment with different settings. Subjects of both groups will be required to complete four (4) treatment visits and two to three follow-up visits.

At the baseline visit, health status will be assessed and, if needed, additional tests will be performed. Inclusion and exclusion criteria will be verified and informed consent will be signed. Skin hydration and elasticity in the treatment area will be measured. In addition photographs of the treated area will be taken.

The treatment administration phase in both study groups will consist of four (4) treatment visits, delivered 7 - 14 days apart. Group A will receive treatment with active ultrasound (ON) and the intensity of radiofrequency will be set to a maximum tolerable level. The group B will receive treatment with the intensity of radiofrequency set to a maximum tolerable level, but without active ultrasound (OFF).

At every treatment visit after the first, prior to the procedure, the participants will be assessed for adverse effects resulting from the previous treatment(s) with the BTL-585F device.

At the last therapy visit, photographs of the treated area will be taken. In addition, subjects will receive Subject Satisfaction Questionnaire and Therapy Comfort Questionnaire to fill in. Skin hydration and elasticity in the treatment area will be measured.

Inclusion Criteria:

• Healthy male or female subjects over 21 years of age seeking treatment and reduction of facial wrinkles and facial skin laxity
• Subjects should be able to understand the investigative nature of the treatment, the possible benefits and side effects, and must sign the Informed Consent Form
• Presence of clearly visible wrinkles in the treated area when the face is relaxed as deemed appropriate by the Investigator
• Subjects willing and able to abstain from partaking in any facial treatments other than the study procedure during study participation
• Willingness to comply with study instructions, to return to the clinic for the required visits, and to have photographs of their face taken

Exclusion Criteria:

• Bacterial or viral infection, acute inflammations
• Impaired immune system
• Isotretinoin in the past 12 months
• Skin related autoimmune diseases
• Radiation therapy and/or chemotherapy
• Poor healing and unhealed wounds in the treatment area
• Metal implants
• Permanent implant in the treated area
• Pacemaker or internal defibrillator, or any other active electrical implant anywhere in the body
• Facial dermabrasion, facial resurfacing, or deep chemical peeling in the treatment area within 6 months prior to the treatment
• Current or history of skin cancer, or current condition of any other type of cancer, or pre-malignant moles
• History of any type of cancer
• Active collagen diseases
• Cardiovascular diseases (such as vascular diseases, peripheral arterial disease, thrombophlebitis and thrombosis)
• Pregnancy/nursing or IVF procedure
• History of bleeding coagulopathies, use of anticoagulants
• Any active condition in the treatment area, such as sores, psoriasis, eczema, rash and rosacea
• Any surgical procedure in the treatment area within the last three months or before complete healing
• Poorly controlled endocrine disorders, such as diabetes
• Acute neuralgia and neuropathy
• Kidney or liver failure
• Sensitivity disorders in the treatment area
• Varicose veins, pronounced edemas
• Prior use of dermal fillers, botulinum toxin, lasers, etc. therapies in the treated area that can influence the study results at the investigator discretion
• Unwillingness/inability to not change their usual cosmetics and especially not to use ani-aging or anti-wrinkles products in the treated area during the duration of the study including the follow-up period
• Any other disease or condition (e.g. eye disease) at the investigator discretion that may pose risk to the patient or compromise the study

The study design is single blinded; only the subject will be unaware of the group assignment. The operator providing the treatment will be aware of the subject's group assignment and will perform the treatment with the setting according to the subject's group.