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Advanced Skin Tightening. No Downtime. All Confidence.

As time passes, your skin naturally begins to lose firmness and elasticity—particularly around the eyes, jawline, neck, and body. If you’re looking for a non-invasive solution that delivers real, long-lasting tightening, Thermage FLX offers an elegant, powerful alternative to surgery.

At Cheng Plastic Surgery in San Mateo, Drs. Elbert and Jacqueline Cheng—double board-certified facial plastic surgeons—offer Thermage FLX to help patients of all skin types achieve smoother, more youthful skin with just one treatment and no recovery time.

What Is Thermage FLX?

Thermage FLX is the most advanced generation of Thermage—a groundbreaking radiofrequency (RF) technology that gently heats the deep layers of the skin to stimulate collagen production and tighten existing collagen fibers.

The result? Firmer, smoother, and tighter skin with natural-looking, progressive improvement over 3 to 6 months. It’s ideal for treating early signs of aging, crepey skin, and sagging contours without needles, scalpels, or downtime.

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What Areas Can Thermage FLX Treat?

Thermage FLX is incredibly versatile and safe for both face and body, including the delicate eye area. Common treatment zones include:

Eyes

Smooth eyelid crepiness, reduce under-eye bags, and lift the brow.

Face

Define the jawline, soften nasolabial folds, and smooth fine lines.

Neck

Firm sagging skin under the chin and along the neck.

Body

Tighten loose skin on the abdomen, thighs, knees, and arms.

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Benefits of Thermage FLX

  • Non-surgical and completely non-invasive
  • No needles, no scars, no downtime
  • Safe for all skin types and tones
  • Ideal for mild to moderate skin laxity
  • Single treatment delivers long-lasting results
  • Enhances skin smoothness, tightness, and texture
  • FDA-cleared and clinically proven technology
  • Can be safely combined with Ultherapy or injectables

How Does Thermage FLX Work?

Thermage FLX uses radiofrequency energy to safely heat the deeper layers of your skin while keeping the surface cool. This controlled heating stimulates new collagen production and tightens existing collagen fibers.

As your body’s natural collagen-building process is reactivated, your skin gradually becomes firmer, tighter, and more youthful over the following weeks and months.

What Makes Thermage FLX Unique?

AccuREP™ Technology

Automatically adjusts treatment depth and energy delivery for precision and consistency.

25% Larger Treatment Tip

Treats more surface area in less time, making sessions faster and more efficient.

Comfort Pulse Technology™

Delivers a soothing vibration to improve comfort during treatment.

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What to Expect During Your Thermage Treatment

  • No anesthesia or numbing required (optional acetaminophen can be taken in advance)
  • Procedure time: 30–90 minutes, depending on area treated
  • Minimal discomfort thanks to integrated cooling and vibration
  • You may experience mild redness or swelling that resolves quickly
  • No aftercare required—you can resume normal activities immediately

When Will I See Results?

  • Initial skin tightening can often be felt right after treatment
  • Collagen production increases over 3–6 months
  • Final results continue to improve for up to 6 months
  • Results can last 1–2 years, depending on skin health, age, and lifestyle
  • Annual maintenance is recommended for continued collagen support
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Thermage FLX vs. Ultherapy: Should I Combine?

Ultherapy uses focused ultrasound to target deeper layers of tissue, while Thermage FLX uses radiofrequency to treat collagen-rich layers just below the skin. The two technologies can complement each other beautifully.

For optimal collagen support, many patients choose to alternate Thermage and Ultherapy treatments—a combination strategy that your Cheng Plastic Surgery provider can personalize to your needs.

Why Choose Cheng Plastic Surgery in San Mateo?

Drs. Elbert and Jacqueline Cheng are pioneers in non-surgical facial rejuvenation, and their expertise helped develop the very treatment tip now used in Thermage FLX systems around the world. What sets our San Mateo practice apart:

  • Double board-certified facial plastic surgeons
  • Leaders in radiofrequency technology and educator-trainers in Thermage FLX
  • A personalized approach grounded in artistry and science
  • Luxurious, accredited, state-of-the-art surgical facility
  • Warm, compassionate care tailored to your comfort and goals
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FAQ Thermage

Is Thermage FLX safe for all skin tones?

Yes, Thermage FLX is FDA-cleared and safe for all skin types and colors.

Is there any downtime?

No. Most patients return to work or social events the same day.

Does Thermage FLX hurt?

Discomfort is minimal. The device includes cooling and vibration to enhance comfort during treatment.

How many treatments will I need?

One treatment is typically sufficient. Follow-ups every 12–18 months help maintain results.

Can Thermage FLX be used around the eyes?

Yes. Thermage is one of the few skin tightening devices approved for use in the delicate eye area.

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Restore Smooth, Firm Skin—Naturally

Whether you're preparing for a big event or simply want to age gracefully on your terms, Thermage FLX in San Mateo offers a powerful solution for skin tightening and rejuvenation—without surgery, pain, or downtime.

Schedule your consultation with Dr. Elbert or Dr. Jacqueline Cheng today to learn if Thermage FLX is the right fit for your beauty goals.

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