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HIFU is commonly used to improve sagging skin on the face and neck, stimulating collagen production and firming and lifting the neck contour. It can also improve double chins and neck wrinkles, but results vary from person to person. Procedure Precautions: Avoid the thyroid gland: Do not perform procedures on the center of the neck or the Adam's apple area to avoid damaging the thyroid gland and laryngeal tissue. Energy Setting: The skin on the neck is thinner, so use lower energy and an appropriate probe depth (generally 1.5mm or 3.0mm). Technique: Follow the jawline and both sides of the neck, avoiding compression of the carotid artery. 

We are unaware of any safe usage guidelines for glaucoma patients using this HIFU device near the eyes. In fact, medical-grade HIFU used for glaucoma is markedly different and carries significant ocular risks. For safety, we strongly advise against using the device around the eyes if the customer has glaucoma. Please consult an ophthalmologist for appropriate, clinically‑approved treatments. 

The treatment lasts approximately 10 minutes: 6 minutes for the face and 4 minutes for the eyes. 

It is recommended to use the device every 2 to 4 weeks for optimal results and to give the skin time to regenerate. 

The eye mode is specifically optimized for sensitive areas such as crow's feet and under-eye bags, while the face mode is suitable for the forehead, cheeks, and jawline with different treatment protocols. 

The device is suitable for all skin types; thanks to the three-level intensity adjustment, the treatment can be individually tailored to sensitive or rough skin. 

After treatment, the device should be cleaned with a damp cotton pad; disinfectants should not be used. 

The device uses focused ultrasound energy to penetrate deep into the skin layers and stimulate collagen production, resulting in firmer and smoother skin. 

It is recommended to rest the skin for a few hours after treatment and to use gentle, soothing products.