Have you heard of K-Tox?
- drglowup
- Jun 30
- 3 min read
Let's talk about the newest botulinum toxin... Letybo (letibotulinum toxin A)

What is Letybo?
Letybo (letibotulinumtoxinA) is a botulinum toxin type A injectable—similar in class to Botox®, Dysport®, Xeomin®, and Jeuveau®. It was developed by Hugel Inc., a South Korean pharmaceutical company with over two decades of expertise in medical aesthetics and one of the world’s leading toxin manufacturers by global sales volume.
✅ FDA Approved in 2023 for moderate-to-severe glabellar lines (the “11” lines between the brows).
✅ Type A neurotoxin derived from Clostridium botulinum, just like Botox.
✅ First Korean botulinum toxin to receive U.S. FDA approval.
✅ Extensively used in Asia and Europe for over a decade before U.S. launch.
✅ Over 50 million vials sold worldwide prior to U.S. approval.
Letybo’s arrival in the U.S. expands patient choice and reflects growing demand for global innovation in aesthetic medicine.
How Does Letybo Work?
Like other neuromodulators, Letybo works by temporarily blocking the release of acetylcholine, the neurotransmitter that signals muscles to contract.
When injected precisely into targeted facial muscles:
✅ The muscles relax.
✅ Dynamic wrinkles soften.
✅ Overlying skin appears smoother and less creased.
Key facts:
Effects typically begin in 2–7 days, with peak improvement around 2 weeks.
Results generally last 3–4 months, though individual variation is normal.
Treatment is quick—often done in 10–15 minutes with minimal downtime.
How Is Letybo Different From Botox?
Many patients ask: “Is Letybo better than Botox?”
While both are botulinum toxin type A products with comparable safety profiles, here are some distinguishing details:
✅ Protein Complex Size & Purification: Letybo uses advanced purification and manufacturing to ensure consistency and stability.
✅ Clinical Data: FDA approval was based on rigorous U.S. Phase III studies confirming safety and efficacy comparable to Botox.
✅ Onset: Some studies suggest it may show effects at the same rate or slightly sooner than Botox, but real-world experience varies.
✅ Global Track Record: Hugel’s toxin formulations have been dominant in Asian markets for years—often prized for precision in delicate facial areas.
✅ Pricing Flexibility: As a new entrant in the U.S., Letybo may offer clinics and patients more competitive pricing.
Importantly, the skill of your injector is the single biggest factor in your result—not the brand of toxin alone.
Is Letybo Safe?
Yes—when performed by qualified medical professionals.
✅ FDA-Approved for glabellar lines after robust Phase III trials.
✅ Side effects are generally mild and temporary, such as redness, bruising, swelling, or headache.
✅ Serious complications (e.g., eyelid droop) are rare and minimized by expert technique.
✅ No systemic toxicity when administered in recommended doses.
As with any neuromodulator, a thorough consultation helps ensure suitability and minimize risk.
Why We’re Excited to Offer Letybo at [Skin + Tonic]
At [Skin + Tonic], we’re dedicated to personalized aesthetic care. Our philosophy is more than just skin deep—we see these treatments as part of your holistic self-care journey.
Adding Letybo to our menu gives our patients:
✨ A rigorously tested, FDA-approved alternative to classic neuromodulators
✨ More choice for patients who want to try something new or switch due to cost or preference
✨ Proven safety with a decade of international experience and over 50 million vials sold
Our approach is never “one-size-fits-all.” Whether it’s Botox, Dysport, or Letybo, we’ll customize your treatment plan to your goals and facial anatomy.
Want to see it in action?
Watch this video, of Dr. Candice Fortunato demonstrating its effects over 1 week, it's like a dynamic before and after, and demonstrates effects you can expect!
Meet Dr. Candice Fortunato
Dr. Candice Fortunato is a dual-boarded physician in Internal Medicine and Pediatrics, and the founder and CEO of [Skin + Tonic]. After more than a decade as a hospitalist and serving as vice chair in her hospital, Dr. Fortunato pivoted to aesthetics with a deeply personal mission: to create a space where beauty and wellness intersect meaningfully.
Her philosophy—“It’s more than just skin deep”—guides every aspect of care at [Skin + Tonic]. Drawing on her extensive medical training and her own transformative journey, Dr. Fortunato specializes in natural-looking injectables, regenerative medicine, and holistic health optimization for women at every stage of life.
When you visit [Skin + Tonic], you’re not just getting a procedure—you’re partnering with a physician who truly understands how to help you feel confident, healthy, and radiant.
Ready to Explore Letybo?
If you’re curious about Letybo or want to see if it’s right for you, we invite you to book a consultation at [Skin + Tonic].
You’ll meet with Dr. Candice Fortunato (aka Dr. Glow Up) to discuss your goals, assess your skin and muscle movement, and create a plan that leaves you looking refreshed—never frozen.
📍 Visit us at 3511 Volunteer Blvd. #120, Henderson, NV 89044
📞 Call (702) 854-6654
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