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Who Sofwave suits, and who it does not

Written by the Delight Dermatology editorial team · Medically reviewed by Lead Dermatologist, Delight Dermatology Clinic (Korean Board-Certified Dermatologist, AAD International Fellow, ASLMS) · Last reviewed

Sofwave suits adults with mild to moderate skin laxity and textural change who want a non-invasive, single-session option and can wait months for the result to develop. It suits people whose problem is dermal: crepey texture, loss of firmness along the jawline and neck, early submental laxity, fine lines. It does not suit people whose laxity is advanced enough that a surgical lift is the honest answer, people expecting fat reduction, or people who need a visible result by a fixed date. Screening at examination covers pregnancy, active infection or open lesions in the treatment area, recent injectables or threads in the area, keloid history, uncontrolled systemic illness and implanted devices. The decisive list is the manufacturer's instructions for use combined with the treating clinician's assessment, not a web page.

An orderly grid of rounded tiles with three tiles lifted out and set aside
Assessment is sorting, not selling — some people are set aside, and that is the useful answer. Stylised illustration made for this site — not a photograph, not the Sofwave device, and not a patient.

Reasonable candidates

Poor candidates

What the examination screens for

These are the categories a dermatologist checks before treating with a heat-delivering device. They are not all absolute bars; several are timing or planning questions.

Skin type and pigmentation

The published series include Fitzpatrick types II–IV and Asian patient populations, and no post-inflammatory hyperpigmentation was reported in them. That is reassuring but comes from small samples, so pigmentation risk is still discussed individually, particularly for patients with a history of melasma or post-inflammatory pigmentation, where any heat-based treatment warrants a more careful conversation.

Candidacy for microfocused ultrasound is assessed differently. That is covered on the Ultherapy candidacy page.

What happens if you are not a candidate

The examination sometimes concludes that this device is not the right answer. That conclusion is worth more than a treatment that was never going to work, and it is the reason candidacy cannot be settled by messenger before you arrive. Delight Dermatology's protocol and the other options available at the clinic are described on the clinic's Sofwave page. Where the alternative is a different energy device, the comparison page explains how that choice is reasoned through.

Published references

The clinical statements on this page reflect the published literature on synchronous parallel-beam ultrasound of the mid-dermis. Citations below are primary or review sources; PubMed identifiers link to abstracts. Where an author group includes device-manufacturer employees, that affiliation is noted in the entry.

  1. Gold MH, Biron J. Efficacy and safety of high-intensity, high-frequency, non-focused ultrasound parallel beams for facial skin laxity. Journal of Cosmetic Dermatology. 2024;23(1):117–123. PubMed · doi:10.1111/jocd.16098
  2. Hongcharu W, Boonchoo K, Gold MH. The efficacy and safety of the high-intensity parallel beam ultrasound device at the depth of 1.5 mm for skin tightening. Journal of Cosmetic Dermatology. 2023;22(5):1488–1494. PubMed · doi:10.1111/jocd.15672
  3. Boonchoo K, Hongcharu W. The efficacy and safety of a single treatment of high-intensity, high-frequency, non-focused ultrasound parallel beams for facial acne scars in Asian patients: a preliminary study. Journal of Cosmetic Dermatology. 2025;24(4):e70134. PubMed · doi:10.1111/jocd.70134
  4. Liao D, Prasad A, Bloom JD. Use of ultrasound in face and neck rejuvenation. Facial Plastic Surgery. 2026 (online ahead of print). PubMed · doi:10.1055/a-2854-6601