Sofwave vs. XERF: How Different Skin Tightening Technologies Compare

By Dermatology + Plastic Surgery | March 2026

Patients are asking about newer skin tightening technologies, including XERF. Here’s what we found.

At Dermatology + Plastic Surgery, we believe our patients deserve more than buzz. Before we recommend any treatment, we ask the boring-but-important questions: What is this device actually cleared to do by the FDA? Is there peer-reviewed data? And is there real evidence it works?

Comparing Skin Tightening Technologies

Sofwave By the Numbers

• 40+ peer-reviewed publications
• 68% collagen increase
• 667,000+ treatments (zero fat loss events)

Sources: Wat et al., Lasers in Surgery and Medicine, 2022 (collagen/elastin data); Sofwave Medical clinical data on file; full publication library at sofwave.com/clinical-evidence.

The FDA Clearance Gap — And Why It Matters

FDA clearances are not marketing claims. They reflect the evidence the agency has reviewed for each intended use.

• Sofwave holds seven aesthetic FDA clearances: fine lines and wrinkles, brow lift, submental lift, neck laxity, facial lifting, arm laxity, and cellulite.
• XERF’s clearance is for electrocoagulation and hemostasis (a surgical indication, not an aesthetic one).

As with any device, it’s important to understand the specific indication a technology is cleared for and how that aligns with its intended use in an aesthetic setting.

Where’s the Published Evidence?

Sofwave has over 40 peer-reviewed publications. Critically, it has biopsy data, meaning researchers took actual tissue samples and measured changes under a microscope. The findings: a 68% increase in collagen and a 33% increase in elastin after a single treatment (Wat et al., Lasers in Surgery and Medicine, 2022).

As of 3.23.26, there is limited publicly available peer-reviewed data for XERF. That doesn’t mean it cannot produce results. It means those results have not yet been demonstrated through independent, peer-reviewed research.

How Heat Plays a Role in Collagen Remodeling

Think of it like cooking: to actually change the structure of something, you need to reach the right temperature. Too low and nothing really transforms; you get a surface effect that fades. Current research suggests collagen remodeling occurs around 65°C.

Sofwave is engineered to hit that sweet spot, 65–70°C, with built-in cooling to protect the skin’s surface. Most patients describe the sensation as warm but manageable.

Some RF technologies, including certain XERF protocols, may operate at lower temperatures in the 40–60°C range, which may not be sufficient to trigger meaningful structural collagen change.

Keeping Fat Where It Belongs

Across skin tightening technologies, preserving facial fat is an important consideration, particularly around the jawline, cheeks, and neck.

Sofwave’s record here is clean: zero reported fat atrophy events across more than 667,000 treatments. That’s a meaningful benchmark for any patient considering a facial energy treatment.

Newer technologies are still building long-term safety data. Patients should ask how a treatment interacts with both their skin and the underlying tissue when deciding what’s right for them.

5 Questions to Ask Before You Book Any Skin Tightening Treatment

We encourage every patient, whether they’re considering Sofwave, XERF, or any other treatment, to ask these five questions:

Sofwave at Dermatology + Plastic Surgery in Melbourne, FL

At Dermatology + Plastic Surgery, we offer Sofwave because the evidence standard meets the bar we’ve set for every treatment we provide.

Treatments are typically completed in 30–45 minutes. Most patients return to their normal routine immediately, and results build gradually over 3 to 6 months as new collagen forms, with effects lasting 12 months or more.

We’d love to answer your questions in person.

Disclaimer: This content is for informational purposes only and does not constitute medical advice. Individual results vary. Consult a qualified provider to determine which treatments are appropriate for your specific needs.