How Long Do Botox, Ulthera, and Thermage Results Last?

How long a treatment lasts depends on its category. Published data put Botox at an average of three to four months, radiofrequency lifting such as Thermage at one to three years with upkeep, and focused ultrasound such as Ulthera on a track record that runs to about a year, while polynucleotide boosters like Rejuran Healer are studied as a short series spaced two to four weeks apart rather than a single timeline. Within any one category, the pre-treatment diagnosis, how the injector sets energy or injection depth, and the first few days of recovery all widen or narrow that range.

Hello, I’m Dr. Kim Yeonjin, director of UH CELL Clinic’s Gangnam branch.

“How long will this actually last?” is one of the first questions I hear from patients who are visiting Seoul on a short trip. Splitting the published timelines from the factors that spread results apart within the same treatment gives you a realistic basis for setting expectations once you’re back home.

How Long Does Each Treatment Family Last, Based on Published Data

Category (example treatment)	How it works	Published timing and duration	Known limit
Focused ultrasound lifting (Ulthera)	Concentrates heat in a deep skin layer to stimulate collagen	Gradual improvement over 2 to 6 months after one session, with improvement tracked to about a year	Limited follow-up data beyond one year
Monopolar radiofrequency (Thermage)	Heats a broad volume to trigger collagen contraction and renewal	Change appears between 2 and 6 months, lasting 1 to 3 years with upkeep	Some patients need 2 to 6 sessions
Botulinum toxin (Botox)	Reduces movement in expression muscles	Averages 3 to 4 months	Varies by dose and individual
Polynucleotide skin booster (Rejuran Healer)	Injected to support the dermal environment	Protocol of roughly 3 sessions spaced 2 to 4 weeks apart, tracked over 12 weeks to 6 months	Limited long-term duration data

Start with focused ultrasound. The American Academy of Dermatology explains that delivering ultrasound heat to a deep skin layer increases collagen production, and that most patients see gradual lifting and firmness over 2 to 6 months after one session, with further sessions sometimes improving the result. A systematic review published in the International Journal of Environmental Research and Public Health in 2023 analyzed 16 studies and found that, among pooled investigator assessments at the 90-day mark, 92% of patients showed improved firmness or wrinkles, with that improvement tracked out to one year. The same review was explicit that no follow-up data beyond one year exists. When I explain Ulthera’s duration to patients, I draw that same line: the evidence is reasonably solid through the first year, and what happens after that depends on the individual and on upkeep.

Radiofrequency covers a wider range. Cleveland Clinic’s 2025 guide to radiofrequency skin tightening notes that new collagen and elastin take time to form, so change shows up between 2 and 6 months, and with proper skin care the effect can last 1 to 3 years. The same guide notes that some patients need 2 to 6 sessions to reach their desired result.

Botox works on a different mechanism, and that shows in a shorter window. Cleveland Clinic states that Botox’s effect lasts an average of 3 to 4 months, at which point a touch-up is typically recommended.

Booster treatments are less about “how many months” and more about “how many sessions, spaced how far apart.” A split-face polynucleotide study in the Journal of Cosmetic Dermatology (2026) delivered three sessions three weeks apart and assessed results at 9 and 12 weeks. A separate international expert-panel opinion piece in Clinical, Cosmetic and Investigational Dermatology recommended a protocol of three sessions spaced four weeks apart for skin hydration and regeneration goals. It’s worth knowing that the published follow-up periods for this category are mostly measured in months, not years.

For visitors flying in from abroad, the timing of when a result becomes visible matters as much as the result itself. Collagen-driven lifting treatments show their effect over 2 to 6 months, so most patients judge the outcome after they’ve already returned home. Booster treatments built around sessions spaced weeks apart are difficult to complete in full during a single 2 to 4 day stay.

What a Diagnosis Decides Before You Ever See a Duration

The same treatment name can last very different lengths of time depending on who receives it, where, and at what dose. Cleveland Clinic’s 2024 health column notes that Botox’s duration varies by person and by dose, with higher doses tending to last longer in some reported data. Authors of a separate polynucleotide study in the Journal of Cosmetic Dermatology (2026) similarly discussed that the durability of injectable regenerative treatments can be influenced by manufacturing technique, tissue movement, and anatomical factors.

Rather than a fixed package, we diagnose the skin first and design treatment around that diagnosis. In that diagnosis, I check which layer the sagging originates in, how thick and elastic the skin is, how much the area moves day to day, and whether the schedule of your stay allows for the sessions and recovery a given treatment needs. That judgment sets the category and the dose, and category and dose are where duration starts.

How the Injector’s Technique Shows Up in the Result

Even with identical equipment, how deep and how much energy gets delivered is a decision the injector makes. A review of radiofrequency skin rejuvenation technology published on PMC describes monopolar radiofrequency as playing an important role in deep tissue laxity, while noting that discomfort during treatment and injector-dependent energy adjustment limit its consistency. The same logic applies to injections. The split-face polynucleotide study mentioned above compared the same formulation injected intradermally on one cheek and subdermally on the other, meaning injection depth itself was a tested variable.

Asking in consultation “who will be treating me, and on what basis will energy and injection depth be set?” is a reasonable question. For reference, I completed graduate training at Seoul National University and residency at Seoul National University Hospital, and I serve as Allergan (Juvederm, Botox) faculty and a Potenza and Ulthera Key Doctor. I also lecture for the Korean Academy of Clinical Esthetic Medicine and hold membership in the Korean Society for Aesthetic Plastic Surgery and Laser Medicine. I mention this to describe my training and teaching background with the equipment and products involved; outcomes still depend on each patient’s skin.

Recovery Window: Where You Spend the First Few Days

The American Academy of Dermatology notes that mild redness and swelling are common after non-surgical firming treatments. For a short-stay visitor, those first few days often overlap with sightseeing, transit, and the flight home. I generally schedule treatment early in a trip and build in one check-in while you’re still in Korea, timed to when swelling and redness are settling.

Our Gangnam branch operates as an on-site facility inside UH FLAT SIGNATURE Gangnam, a UHC group hotel (13 Teheran-ro 8-gil, WD Building, 2nd and 3rd floors). Guests staying at this hotel can move between consultation, treatment, and rest within the same building rather than traveling to a separate location, and treatment takes place in a private room. Japanese, Chinese, and English-speaking interpretation staff are on site.

UHC hotel guests can choose one complimentary option between a 30-minute oxygen chamber session or a vitamin IV drip. Using both means the IV drip is charged at 55,000 KRW. Full conditions are available on the promotions page at uhcell.com. I present this as a comfort and recovery-support option for your stay rather than a way to extend how long a treatment’s results last.

When to Judge Your Result After You Fly Home

The right time to judge a result differs by category.

1. Botox: Check around the 3 to 4 month mark for fading effect, and plan your next visit around that interval.
2. Lifting treatments like Ulthera or Thermage: Collagen changes unfold over 2 to 6 months, so don’t judge based on the first few days. Base your next consultation on how things look several months out.
3. Booster treatments like Rejuran Healer: Since the published protocols run across several sessions spaced weeks apart, decide in advance whether you’ll complete remaining sessions on a future visit or discuss them with a provider closer to home.

Day-to-day habits matter after you’re home, too. Just as Cleveland Clinic ties radiofrequency’s 1 to 3 year range to “proper skin care,” sun protection and routine skin care help preserve a result. Which home-care products make sense depends on the treated area’s condition, so ask about that during consultation.

If you want more detail on the recovery timeline itself, see Recovering From a Skin Procedure in Seoul: What to Expect. If you’re still deciding between lifting devices, Ulthera vs Thermage: How Seocho Decides in Consultation walks through that decision from a different branch’s consultation process.

What to Confirm Before Your Visit

• Your total number of days in Korea and your return flight date, and whether treatment can happen early in the trip
• Whether the treatment you’re interested in is a single session or a multi-session protocol spaced weeks apart
• Questions for consultation: who performs the treatment, and how energy, dose, and injection depth are decided
• Where you’ll rest afterward and how far that is from the clinic
• When you’ll judge the result after returning home, and roughly when your next visit should be

FAQ

Can I continue follow-up care with a clinic near home after I return?

In many cases, yes, but that decision belongs to the treating doctor you see there. Write down the treatment name, treated area, and date so the next doctor has what they need, and ask during consultation whether you can receive a treatment record. If it’s a session-based treatment like a skin booster, note the remaining sessions and the interval between them as well.

If I get Botox repeatedly, can the interval between sessions get longer?

Cleveland Clinic explains that with repeated treatment, the muscle may contract less over time, which can allow longer intervals between sessions for some patients. In the same organization’s health column, cosmetic surgeon James Zins, MD, noted that when someone first starts treatment, the effect generally lasts 3 to 4 months and fades gradually, and the column adds that once the muscle adjusts, later injections can last longer than the first. This varies significantly by individual, so keep a record of how long your past treatments lasted and discuss it at your next consultation.

Should I expect the exact numbers from these studies as my own result?

Not directly. In the focused ultrasound systematic review cited above, every subject in the included studies was female, and patient-rated improvement rose from 42% at 90 days to 53% at 360 days, though the degree of improvement was recorded as mild. Treat published figures as a reference for direction and timing rather than a personal guarantee, and set expectations that match your own skin in consultation after a diagnosis.

Individual skin response and recovery time vary from person to person. Please consult a specialist for an accurate diagnosis and treatment plan.