Letybo

Letybo NYC | South Korea's #1 Neurotoxin | Dr. Bortecen | SoHo Men's Health

SoHo Men's Health — New York City

Letybo
The next generation
of neurotoxin has arrived

FDA-approved and trusted internationally, Letybo® delivers refined, natural-looking results tailored to male facial anatomy.

Letybo neurotoxin treatment at SoHo Men's Health with Dr. Bortecen NYC
South Korea's
#1 Neurotoxin
Now FDA-Approved · Available at SoHo Men's Health
Treatment Time
20 – 30 Min
Downtime
Zero
Results Appear
3–7 Days
Duration
3–4 Months

The New Generation
of Neurotoxin

FDA-approved and widely used across South Korea and Asia for over a decade, Letybo is now available at SoHo Men's Health. Board-certified Dr. Kerem H. Bortecen delivers precise, natural-looking results designed specifically for male facial anatomy.

Modern Neurotoxin. Natural Results.

Letybo® (letibotulinumtoxinA-ltbc) is a purified botulinum toxin developed by Hugel, one of South Korea's leading biotechnology companies. Like other neurotoxins, Letybo temporarily relaxes the facial muscles responsible for dynamic wrinkles, including:

  • forehead lines
  • frown lines
  • crow's feet

What sets Letybo apart is its ultra-pure formulation, consistency, and natural-looking finish.

FDA-Approved 2023 South Korea's #1 Neurotoxin Ultra-Pure Formulation 10+ Years International Use Natural-Looking Results Precision Male Protocols Zero Downtime Dr. Bortecen · SoHo Men's Health
Letybo neurotoxin treatment Dr. Bortecen SoHo Men's Health NYC
LETYBO
letibotulinumtoxinA · FDA-Approved · South Korea's #1

Every Letybo Treatment at SoHo Men's Health
Is Tailored to Your Anatomy

Dr. Bortecen at SoHo Men's Health designs every Letybo protocol around the individual — assessing facial muscle strength, skin quality, and aesthetic goals before placing a single injection. These are the three primary areas most commonly treated with Letybo for men.

Letybo for forehead lines and frown lines at SoHo Men's Health Dr. Bortecen
01 / Forehead & Glabella

Forehead Lines
& Frown Lines

Smooth horizontal forehead lines and the vertical "11 lines" between the brows caused by repeated muscle movement and expression.

Letybo Forehead Protocol · Dr. Bortecen
Letybo for crow's feet eye wrinkles SoHo Men's Health NYC
02 / Eyes

Crow's Feet
& Brow Lifting

Softens fine lines around the eyes while creating a subtle, natural-looking brow lift that maintains masculine facial structure.

Letybo Eye Protocol · Dr. Bortecen
Letybo advanced treatment jaw neck slimming SoHo Men's Health
03 / Advanced Areas

Jaw Slimming,
Neck Bands & Lip Lines

Advanced treatment areas include jawline slimming, neck bands, and fine lip lines — all performed with a precise, anatomy-focused approach tailored to male facial aesthetics.

Letybo Advanced Protocol · Dr. Bortecen

Why Patients Are
Choosing Letybo

01

Natural-Looking Results

Designed to soften lines while preserving natural facial movement and masculine character.

02

Korean Aesthetic Innovation

Widely used across South Korea and Asia for years before receiving FDA approval in the United States.

03

Precision & Consistency

Letybo's purification process produces highly consistent results across treatments.

04

Physician-Performed

Every treatment is performed personally by Dr. Bortecen.

05

Neurotoxin Treatment for Men

Male facial anatomy requires a different approach to neurotoxin treatment. Men typically have a stronger forehead muscle, heavier brow structure, different facial balance goals. Dr. Bortecen tailors every Letybo treatment to preserve masculine features while creating a more rested, refreshed appearance.

Dr. Bortecen Letybo injection SoHo Men's Health NYC neurotoxin
#1
In South Korea. Now at SoHo Men's Health.

What to Expect

Letybo consultation Dr. Bortecen SoHo Men's Health before treatment
Before Your Treatment

Consultation

A personalized assessment and treatment plan based on your facial anatomy and goals.

Letybo injection treatment Dr. Bortecen SoHo Men's Health during session
During Treatment

Treatment

Treatment typically takes 20–30 minutes using ultra-fine needles with minimal discomfort.

Letybo results after treatment SoHo Men's Health Dr. Bortecen natural looking
After Treatment

Results

Results begin appearing within several days, with full effect visible in 1–2 weeks. Most patients maintain results every 3–4 months.

What Results Can I Expect
From Letybo at SoHo Men's Health?

0
Days of downtime after treatment
2–3
Days for initial results to appear
10+
Years of international clinical use
3–4 Mo
Average result duration

Before & After Letybo
at SoHo Men's Health

Results from an actual patient treated by Dr. Bortecen at SoHo Men's Health. Individual results may vary.

Letybo before and after 4 weeks 16 weeks results SoHo Mens Health Dr. Bortecen
Treatment Timeline Before
Treatment Timeline 4 Weeks
Treatment Timeline 16 Weeks

Results from Letybo treatment performed personally by board-certified Dr. Kerem Bortecen at SoHo Men's Health, NYC. Individual results may vary.

Treatment Resistance: Why Consistency Matters

Some patients notice their neurotoxin treatments wear off faster over time, or don't achieve the same results despite consistent dosing. This is treatment resistance—a gradual loss of effectiveness that can develop after years of repeated injections with certain formulations, including Botox and other traditional neurotoxins.

Research indicates that formulations containing complexing proteins—like Botox—may increase the risk of antibody formation over repeated treatments. Because Letybo is manufactured using Hugel's proprietary purification process—producing an ultra-pure toxin without accessory proteins—it may offer a significantly lower risk of treatment resistance compared to protein-heavy alternatives. This means Letybo could maintain consistent, predictable results year after year, a clinical advantage for patients committed to long-term treatment who want to avoid the diminishing returns that sometimes occur with Botox.

Ultra-Pure Formulation Lower Antibody Risk vs Botox Consistent Long-Term Results
Letybo treatment resistance science
Sustained Efficacy
Without Resistance
Before Letybo treatment
After Letybo treatment
Before Letybo treatment
After Letybo treatment
Before Letybo treatment
After Letybo treatment
Before Letybo treatment
After Letybo treatment

All results from Letybo treatments performed by board-certified Dr. Kerem Bortecen at SoHo Men's Health, NYC. Individual results may vary.

Why Choose Dr. Bortecen
for Your Letybo Treatment?

A neurotoxin is only as precise as the hands administering it. At SoHo Men's Health, every Letybo injection is performed personally by board-certified Dr. Kerem Bortecen — a physician with deep expertise in male facial anatomy and aesthetic medicine. Dr. Bortecen does not delegate Letybo treatments to nurses or aestheticians. Every session begins with his direct clinical assessment and ends with his hands.

Dr. Bortecen understands that male patients seeking Letybo at SoHo Men's Health want results that are effective but invisible — improvement that reads as health and vitality, not as treatment. His Letybo protocols are built around preserving the strength and character of the male face while eliminating the markers of fatigue, stress, and age. The result is a version of you that looks your best — not a different person.

Board-Certified PhysicianDr. Bortecen holds board certification with advanced training in aesthetic medicine and men's health — not a nurse or aesthetician
Male Facial Anatomy ExpertiseSoHo Men's Health is built exclusively for male patients — Dr. Bortecen's Letybo protocols are designed specifically for the anatomy, musculature, and goals of men
Precision Letybo Injection TechniqueDr. Bortecen's refined injection protocols and precise dosing create smooth, natural results — never an overdone or frozen appearance
11 Broadway, Suite 570 — SoHo, NYCA private, upscale clinical environment in Lower Manhattan — designed for men who value discretion and excellence
Dr. Kerem Bortecen board-certified physician SoHo Men's Health Letybo neurotoxin NYC
"Letybo represents exactly what I look for in a neurotoxin for my patients at SoHo Men's Health — a consistent, ultra-pure formulation backed by over a decade of international evidence. The results speak for themselves: natural, refined, masculine. That is the standard we hold at SoHo Men's Health."
— Dr. Kerem Bortecen, Board-Certified Physician · Founder, SoHo Men's Health

Schedule Your Letybo Consultation
with Dr. Bortecen Today

Board-certified Dr. Bortecen at SoHo Men's Health is now offering Letybo — South Korea's #1 neurotoxin — for men seeking natural-looking wrinkle reduction with precision and expertise. Same-week appointments available.

Book Your Letybo Consultation
11 Broadway, Suite 570, NYC Mon – Sat Available Dr. Bortecen · Board-Certified Same-Week Appointments
Investment

Letybo Pricing

Transparent, unit-based pricing. Exact unit count determined at your Letybo consultation with Dr. Bortecen.

South Korea's #1 Neurotoxin
Letybo — letibotulinumtoxinA · FDA-Approved
Performed personally by board-certified Dr. Kerem Bortecen at SoHo Men's Health.
Price per unit
$ 15 /unit

Typical treatment: 20–60 units depending on area(s) treated. Exact unit count determined at consultation with Dr. Bortecen.

Schedule Your Letybo Consultation
Performed personally by board-certified Dr. Kerem Bortecen at SoHo Men's Health

Pricing confirmed at consultation.  Schedule yours →

Letybo vs. Botox, Dysport, Xeomin,
Jeuveau & Daxxify

All FDA-approved neurotoxins share the same core mechanism — botulinum toxin type A — but differ meaningfully in formulation, origin, onset, duration, and dosing. Here is how Letybo compares to the other options available at SoHo Men's Health and across the U.S.

Attribute Letybo ★ Botox Dysport Xeomin Jeuveau Daxxify
Manufacturer / Origin Hugel · South Korea Allergan · USA Ipsen · France Merz · Germany Evolus · USA Revance · USA
FDA Approval Year 2023 2002 2009 2011 2019 2022
International Track Record 10+ years in Asia 20+ years 15+ years 15+ years US-focused Recent
Formulation Type Ultra-pure, complexing protein-free With complexing proteins With complexing proteins Naked toxin (pure) With complexing proteins Peptide-stabilized
Onset of Action 2–3 days 3–7 days 2–5 days 3–7 days 2–5 days 3–7 days
Duration of Results 3–4 months 3–4 months 3–4 months 3–4 months 3–4 months 6+ months
Dosing Conversion 1:1 with Botox Reference standard ~2.5:1 vs Botox 1:1 with Botox 1:1 with Botox ~1:1 with Botox
Spread / Diffusion Controlled, predictable Controlled Greater spread Controlled Controlled Controlled
Available at SoHo Men's Health ✓ Yes — Dr. Bortecen ✓ Yes ✓ Yes ✓ Yes ✓ Yes ✓ Yes

★ Letybo is Dr. Bortecen's featured neurotoxin at SoHo Men's Health. During your consultation, Dr. Bortecen will discuss which neurotoxin is the right choice for your anatomy and goals.

Is Letybo the Right Neurotoxin
for You?

There is no single "best" neurotoxin — there is only the best choice for your specific goals, anatomy, and history. At SoHo Men's Health, Dr. Bortecen will guide you to the right decision. Here are three common patient profiles to help you think through your options before your consultation.

First-Time Patients

You've Never Had a Neurotoxin Before

Letybo is an excellent choice for first-time neurotoxin patients at SoHo Men's Health. Its ultra-pure formulation, consistent onset, and well-characterized international safety profile make it an ideal starting point. Dr. Bortecen can use a conservative initial Letybo dose and build from there, ensuring your first experience is natural and comfortable — and calibrating future sessions to your individual response.

Experienced Patients

You've Used Botox or Another Neurotoxin Before

If you have been receiving Botox, Dysport, or another neurotoxin and are looking for an alternative — or simply want to explore what Letybo offers — the transition is straightforward at SoHo Men's Health. Letybo's 1:1 dosing conversion with Botox makes it easy for Dr. Bortecen to replicate your existing protocol with Letybo, often with comparable or improved consistency thanks to Letybo's ultra-pure formulation.

Long-Duration Seekers

You Want Results That Last as Long as Possible

If your priority is maximizing the duration of your neurotoxin results — minimizing the number of annual appointments — Dr. Bortecen at SoHo Men's Health may recommend Daxxify, which has a clinically established duration of 6+ months. During your consultation, Dr. Bortecen will outline all options, including Letybo, so you can make an informed decision about which neurotoxin best fits your lifestyle and goals at SoHo Men's Health.

Your Letybo Questions,
Answered by Dr. Bortecen

What makes Letybo different from Botox at SoHo Men's Health?
Letybo and Botox both contain botulinum toxin type A and work through the same mechanism. The primary differences lie in formulation, origin, and track record. Letybo is manufactured by Hugel in South Korea using a proprietary purification process that produces an ultra-pure formulation — free of complexing proteins — with exceptional batch-to-batch consistency. It has over a decade of clinical use in Asia, where it is the #1 neurotoxin by market share. At SoHo Men's Health, Dr. Bortecen has found Letybo to offer highly consistent, predictable results — the kind of reproducibility that allows him to calibrate treatments with precision across multiple sessions. For many patients, Letybo produces results that are clinically comparable to Botox; for others, they prefer one formulation over the other based on subtle differences in onset, feel, or duration.
Is Letybo safe? What is the FDA approval status?
Yes. Letybo received full FDA approval in 2023 for the treatment of moderate-to-severe glabellar lines (frown lines) in adults. The FDA approval was supported not only by U.S. clinical trial data but by an extensive international evidence base accumulated over more than ten years of use in South Korea and across Asia. Dr. Bortecen at SoHo Men's Health is fully trained and experienced in Letybo administration. As with any injectable treatment, rare side effects can include bruising, temporary swelling, or mild headache — all transient. The risk of serious complications is extremely low when Letybo is administered by a board-certified physician such as Dr. Bortecen.
How many units of Letybo will I need?
The number of Letybo units required depends on the areas being treated, your individual muscle strength, and your aesthetic goals. As a general guide: treating the forehead alone typically requires 10–20 units; the glabella (11 lines) requires 20–25 units; crow's feet require 10–15 units per side; and treating all three areas together often falls in the range of 40–60 units. Men typically require somewhat more units than women due to heavier facial musculature. Dr. Bortecen at SoHo Men's Health will assess your anatomy at your consultation and provide a precise Letybo unit recommendation. At $15/unit, your total investment is transparent and discussed before treatment begins.
When will I see results from my Letybo treatment?
One of Letybo's standout advantages is its rapid onset of action. Results typically begin appearing within 2–3 days of your treatment at SoHo Men's Health — faster than many competing formulations. Full effects develop over 1–2 weeks as the toxin fully integrates with muscle tissue. This quick onset means you see improvement sooner, making Letybo an excellent choice if you have an upcoming event and want visible results within days rather than waiting a full week or more. The speed of onset is one reason many patients and physicians prefer Letybo's formulation for its clinical predictability.
How long do Letybo results last at SoHo Men's Health?
Letybo results typically last 3–4 months for most patients at SoHo Men's Health. Individual variation exists — some patients metabolize neurotoxins more quickly and find their results fade closer to the 3-month mark, while others maintain their results for 4 months or longer. Factors including muscle mass, metabolic rate, activity level, and the area treated all influence duration. Dr. Bortecen at SoHo Men's Health recommends scheduling your next Letybo appointment when you first notice your results beginning to fade — ideally every 3–4 months — to maintain consistent, optimal results throughout the year.
Can I combine Letybo with other treatments at SoHo Men's Health?
Absolutely. Letybo pairs exceptionally well with dermal fillers, HydraFacial, and skin rejuvenation treatments at SoHo Men's Health. A common and effective combination is Letybo for dynamic wrinkles (movement-related lines) combined with hyaluronic acid fillers for volume restoration and deep static lines — addressing the two primary mechanisms of facial aging in a single visit with Dr. Bortecen. Letybo can also be safely combined with HydraFacial on the same day (HydraFacial before Letybo), and with laser or RF treatments when appropriately timed. Dr. Bortecen at SoHo Men's Health will design a combined protocol tailored to your goals.
What should I expect on the day of my Letybo treatment at SoHo Men's Health?
Your Letybo appointment at SoHo Men's Health will begin with a brief pre-treatment assessment by Dr. Bortecen — reviewing your goals, confirming your injection map, and answering any last-minute questions. The injection process itself typically takes 15–20 minutes. You may experience minor pinching at injection sites and may have small, temporary bumps at injection points that resolve within 30–60 minutes. You can return to work, social engagements, and light exercise immediately after your Letybo treatment. Dr. Bortecen advises avoiding vigorous exercise, alcohol, and lying flat for 4 hours post-treatment, and not rubbing or massaging the treated areas for 24 hours.
What makes SoHo Men's Health the right place for Letybo in NYC?
Three things: physician-level expertise, a practice built exclusively for men, and a commitment to individualized care over standardized protocols. Board-certified Dr. Bortecen at SoHo Men's Health brings genuine clinical depth to every Letybo session — the kind of anatomical knowledge and injection precision that simply does not exist at a standard med spa or high-volume chain. SoHo Men's Health exists because men deserve the quality of aesthetic care they have long been underserved in — in a private, upscale environment where their goals are understood and taken seriously. If you are looking for Letybo in NYC administered at the highest standard, SoHo Men's Health is the answer.

Ready to Get Started?