The most powerful non-surgical body skin tightening available in the San Gabriel Valley — now at Lean Lab Pasadena.
If you're looking for body skin tightening near Pasadena — whether after GLP-1 weight loss, pregnancy, or simply the natural effects of aging — XERF at Lean Lab is the most advanced non-surgical option available in the San Gabriel Valley. No surgery. No needles. No downtime. Just real, structural skin tightening on the areas that matter most: your abdomen, arms, and thighs.
XERF (Xtreme Energy Radiofrequency) is the world's first multifrequency monopolar RF device. It delivers radiofrequency energy across multiple frequencies simultaneously, allowing it to penetrate to multiple tissue depths in a single pass — from the superficial dermis all the way down to the subcutaneous tissue where structural collagen and elastin live.
This deep thermal energy triggers a controlled wound-healing response. Your body responds by producing new collagen and elastin — the structural proteins that give skin its firmness, elasticity, and lift. Results continue to improve for 3–6 months after treatment as the new collagen matures and remodels.
XERF is not a fat-reduction device. It is a skin tightening device. Its purpose is to firm, lift, and tighten loose or lax skin — making it the ideal complement to GLP-1 weight loss programs, post-pregnancy body recovery, or any situation where the skin has lost its structural integrity.
The abdomen is the most common area of concern for patients seeking body skin tightening at Lean Lab. Whether from GLP-1 weight loss, post-pregnancy changes, or years of weight fluctuation, loose abdominal skin is one of the most visible and frustrating forms of skin laxity.
XERF treats the full abdominal area — upper and lower belly, flanks, and love handles — in a single session. The deep RF energy penetrates through the skin to the subcutaneous layer, stimulating collagen production throughout the treatment zone. Most patients notice an immediate improvement in skin firmness right after their session, with progressive tightening over the following months.
For patients who have lost significant weight on GLP-1 medications, the abdomen is often the area with the most pronounced skin laxity — and the area where XERF delivers the most dramatic improvement. We typically recommend 2 sessions spaced 4–6 weeks apart for the abdomen, with some patients benefiting from a third session.
Loose inner arm skin — commonly called "bat wings" — is one of the most common complaints after GLP-1 weight loss. The inner arm is a notoriously difficult area to address without surgery because the skin is thin, the fat volume that supported it is gone, and the remaining skin has limited ability to self-tighten.
XERF's multifrequency energy is particularly effective on the arms because it can be precisely calibrated for the thinner skin in this area. The treatment covers the full inner arm from the elbow to the axilla (armpit), as well as the posterior arm and, if needed, the forearm. Most patients see meaningful improvement in arm skin firmness and texture after 1–2 sessions.
For patients who have lost 30+ pounds on a GLP-1 program, arm skin tightening is often one of the first priorities — because loose arm skin is visible in everyday clothing and affects confidence in ways that belly skin (which is hidden) does not.
The inner thighs are one of the most undertreated areas of skin laxity after weight loss. Most patients focus on the belly and arms — but the inner thighs are just as affected by GLP-1 weight loss, and loose thigh skin causes real quality-of-life issues: chafing, discomfort in shorts or swimwear, and self-consciousness in fitted clothing.
XERF treats the full thigh — inner, outer, anterior, and posterior — as well as the knees and upper calves. The deep RF energy penetrates through the thicker skin of the thigh to stimulate collagen production at the structural level, producing real tightening rather than a surface effect.
In a single XERF body session, your provider can treat both thighs comprehensively, making it an efficient option for patients with widespread lower body skin laxity.
One of the advantages of XERF is that multiple body areas can be treated in a single session. A typical full-body XERF session at Lean Lab might include:
A comprehensive full-body session typically runs 90–120 minutes. Your provider will create a treatment plan based on your specific areas of concern and the degree of skin laxity in each zone.
XERF at Lean Lab is priced at $2,499 per session. For the recommended 2-session series, we offer a package of $4,500 — saving you $498 compared to two individual sessions.
Each session covers a defined treatment area (face & neck, or body). For patients treating multiple body areas in a single session, your provider will discuss the appropriate session structure during your consultation.
Lean Lab is a medically supervised regenerative health clinic in Pasadena, CA. We specialize in GLP-1 weight loss programs — so we understand the full picture of what our patients go through, including the skin changes that follow significant weight loss. XERF is a natural extension of the care we already provide.
We also offer InBody body composition scans, Styku 3D body scans, and blood work panels at The Lab — giving you a complete picture of your body composition before, during, and after your XERF treatment series.
We serve patients from Pasadena, Arcadia, Monrovia, Alhambra, San Marino, Temple City, Glendale, Burbank, and the greater San Gabriel Valley and Los Angeles area.
Ready to tighten your abdomen, arms, and thighs?
Book a XERF consultation at Lean Lab Pasadena — $2,499/session or $4,500 for 2. No surgery, no needles, no downtime.
Book a Consultation