Evaluating the Long-term Effects of Microfocused Ultrasound on Facial Tightening Using Quantitative Instruments

Exclusion Criteria

• •1. Pregnant or lactating women.
• •2. Individuals with a scar-prone constitution, allergic or abnormally healing skin.
• •3. Treatment areas with damaged skin, acute inflammation, active infection, rosacea, vitiligo in the progressive stage, or severe acne.
• •4. Patients with skin conditions such as urticaria, itching, or other dermatological diseases.
• •5. Those with psychological disorders or drug allergies.
• •6. Individuals harboring unrealistic expectations about treatment outcomes.
• •7. Treatment areas containing metal foreign bodies or fillers deemed unsuitable for treatment by the physician.
• •8. Recent facial laser treatments or injections within the past month, including but not limited to filler treatments such as hyaluronic acid, botulinum toxin, and PRP injection therapy.
• •9. Any skin-tightening cosmetic treatments on the face or neck within the last three months.
• •10. Any minimally invasive cosmetic treatments on the face within the last three months.
• •11. Thread embedding treatments on the face within the last year, excluding thread blepharoplasty.
• •12. Patients with severe insomnia or those requiring intense sun exposure within the next three months.
• •13. Patients deemed unsuitable for participation by the investigator.
• •14. Those unable to cooperate with the treatment and complete all required visits.