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What Is XERF? Everything You Need to Know — And Where to Get It in Los Angeles
XERF™ is the most advanced non-surgical skin tightening treatment available. Here's exactly what it does, how it works, how it compares to the competition — and where you can get it in the LA area.
If you've been searching for XERF in Los Angeles or trying to understand what XERF skin tightening actually is — you're in the right place. XERF™ is a newer technology that's generating serious attention in the medical aesthetics world, and for good reason. It delivers structural skin tightening results that were previously only achievable through surgery — without needles, numbing, or downtime.
What Is XERF?
XERF™ stands for X-treme Energy Radiofrequency. It is the world's first multifrequency monopolar radiofrequency skin tightening treatment — meaning it delivers RF energy at two different frequencies (6.78 MHz and 2 MHz) in a single session, allowing it to treat multiple depths of tissue simultaneously.
Most RF treatments on the market use a single frequency, which limits how deep the energy can penetrate. XERF™'s dual-frequency approach allows it to reach the SMAS layer — the Superficial Musculoaponeurotic System — which is the same deep structural layer that surgeons tighten during a facelift. No other non-surgical RF device consistently reaches this depth without needles.
What Does XERF Do to the Skin?
When XERF™ energy is delivered into the skin, two things happen:
Immediate collagen contraction
The heat causes existing collagen fibers to contract and tighten — producing a visible lifting effect that some patients notice immediately after their first session.
Long-term collagen remodeling
The controlled thermal injury triggers the body's wound-healing response, stimulating fibroblasts to produce new collagen and elastin over the following 2–3 months. This is where the most significant and lasting results come from.
The result: firmer, tighter, more lifted skin — from the inside out. No surgery. No recovery. No synthetic fillers.
What Does XERF Treat?
XERF™ treats both the face and body:
Face & Neck
- •Jawline & jowls
- •Cheeks & midface
- •Forehead & brow
- •Under-eye area
- •Neck laxity & turkey neck
- •Double chin & submental area
- •Décolletage
Body
- •Abdomen & flanks
- •Inner & outer thighs
- •Upper arms (bat wings)
- •Knees
- •Buttocks
- •Loose skin after weight loss
XERF vs Thermage vs Morpheus8 — How Do They Compare?
| Feature | XERF™ | Thermage | Morpheus8 |
|---|---|---|---|
| Technology | Multifrequency monopolar RF | Single-frequency monopolar RF | RF microneedling |
| Needles required | No | No | Yes |
| Numbing required | No | Sometimes | Yes |
| Downtime | None | None | 3–5 days |
| Depth of treatment | Shallow + mid + deep (SMAS) | Mid-depth | Mid-depth |
| Skin type safety | All skin types | All skin types | All skin types |
| Sessions needed | 1–2 | 1–2 | 3+ |
| Comfort | High (built-in cooling) | Moderate | Low (needles) |
XERF for Loose Skin After GLP-1 Weight Loss
One of the most common concerns for patients on semaglutide (Ozempic/Wegovy), tirzepatide (Mounjaro/Zepbound), or retatrutide is loose skin. Rapid fat loss — especially in the face, neck, abdomen, and arms — can leave behind crepey, sagging skin that diet and exercise alone can't fix.
XERF™ is one of the most effective non-surgical solutions for this problem. The deep RF energy tightens the structural layers of the skin from within — addressing the laxity that GLP-1 medications can cause as fat is lost rapidly. At Lean Lab, we frequently combine XERF™ with our GLP-1 weight loss programs for comprehensive body recomposition results.
What to Expect During a XERF Session
- •No numbing cream or injections required
- •The handpiece is moved across the treatment area in a systematic pattern
- •You'll feel a warm, deeply penetrating heat — similar to a hot stone massage
- •Built-in cryogen cooling keeps the skin surface comfortable throughout
- •Face & neck sessions take 30–60 minutes
- •No redness, peeling, or visible recovery — you can return to normal activities immediately
- •Some patients notice immediate tightening; full results develop over 2–3 months
Where to Get XERF in Los Angeles
Lean Lab in Pasadena is one of the only providers of XERF™ structural skin tightening in the greater Los Angeles area. XERF™ is a newer technology and is not yet widely available — most clinics across LA still offer older-generation RF devices.
We serve patients from across the LA metro, including:
- •Pasadena, South Pasadena, and San Marino
- •Arcadia, Monrovia, and Temple City
- •Alhambra, San Gabriel, and Rosemead
- •Glendale, Burbank, and La Cañada Flintridge
- •Silver Lake, Los Feliz, and Echo Park
- •West Hollywood, Beverly Hills, and Brentwood
- •Downtown Los Angeles and the Westside
- •Duarte, Azusa, Covina, and the eastern San Gabriel Valley
Our clinic is located at 238 S Arroyo Pkwy, Suite 140, Pasadena, CA 91105 — easily accessible from the 110, 210, and 134 freeways.
Frequently Asked Questions About XERF
Book Your XERF Consultation
One of the only XERF™ providers in Los Angeles — located in Pasadena, CA