What is Letybo?

Letybo is an FDA-approved neuromodulator used to soften expression lines and provide a smoother, more refreshed appearance. A neuromodulator blocks nerve signals to the muscles of expression to stop the muscle contractions which relaxes the wrinkles of expression and smoothes the skin. It is an alternative to Botox and may be referred to as K-Beauty Botox.

What are dynamic wrinkles?

Dynamic wrinkles are facial lines that appear when the muscles beneath the skin contract as you create facial expressions. They are created by repeated expressions over many years, such as frowning, smiling, squinting, or lifting the eyebrows. Common examples include crow’s feet, frown lines, and forehead lines. As the skin ages and loses collagen and elasticity, these temporary folding lines start to linger, eventually becoming visible even at rest.

Because dynamic wrinkles are driven by muscle movement, neuromodulators like Letybo are the most effective way to treat them. Static wrinkles, which remain visible without expression and are caused by aging, sun damage, or volume loss, require different treatments such as lasers, peels, or fillers.

What does it treat?

Letybo specifically targets dynamic wrinkles caused by repetitive facial movement. Treatment is customized for each patient, but common areas include:

• Frown lines between the brows from actions like raised eyebrows from surprise or worry
• Angry 11’s- vertical lines between the eyebrows that from frowns and scowls
• Bunny lines – wrinkles on each side of the nose from squinting
• Crow’s feet around the eyes
• Horizontal and vertical forehead lines
• Lip lines/ smoker’s lines
• Chin dimpling
• Neck bands that run down the neck
• Lines that create a tense, stressed, or tired appearance

Because Letybo works at the muscular level, it is effective for softening these movement-related lines and restoring a more approachable, relaxed appearance.

How does Letybo work?

Letybo blocks the nerve signals that tell targeted facial muscles to contract. When these muscles relax, the overlying skin no longer folds with the same force, allowing lines to soften gradually. The treatment affects only the specific muscles injected and does not impact surrounding areas, ensuring natural expression is preserved. The goal is not to eliminate movement but to reduce excessive contractions that create unwanted lines. With consistent treatments, the skin is exposed to less mechanical stress, which helps prevent deeper, more permanent wrinkles from forming, and over time reduces the amount of neurotoxin needed to maintain a more relaxed appearance.

Your consultation

A consultation with Dr. Swetha Kandula focuses on precision, safety, and natural-looking results. She evaluates your facial anatomy, observes how your muscles move, and discusses your goals to determine whether Letybo is appropriate. Dr. Kandula reviews your medical history and explains what dynamic wrinkles are, how they form, and why Letybo is the best approach for treating them. She creates a personalized plan that enhances your appearance without eliminating natural facial expression. You leave the consultation with a clear understanding of what the treatment can achieve and what to expect afterward.

How many treatments are needed?

Most patients begin with one treatment session. Letybo starts working in 2-3 days, with full results visible in one to two weeks. To maintain the improvement, treatments are usually repeated every three to four months. The exact timing depends on muscle strength, metabolism, and aesthetic preferences. Some patients prefer very subtle changes and may receive lighter dosing more frequently. Others maintain results with a consistent treatment schedule throughout the year. Dr. Kandula adjusts your plan based on how your muscles respond and how long your results last.

Younger patients, their late 20’s and early 30’s, may choose to have Letybo injections to prevent deepening of the lines of expression. A smaller amount of Leybo is needed. Some call it “micro tox”

How long do results last?

The effects of Letybo generally last between three and four months. As the neuromodulator gradually wears off, muscle activity returns slowly, and expression lines begin to reappear. Many patients notice that with ongoing treatment, their lines become less pronounced because the skin is not folding as aggressively over time. Regular maintenance helps preserve smoother skin and slows the progression of deeper wrinkles.

What is the recovery like?

Recovery is quick and uncomplicated. Most patients return to normal activities immediately after treatment. Minor redness or pinpoint swelling may occur but fades quickly. Dr. Kandula may advise avoiding strenuous exercise, heavy sweating, and pressure on treated areas for several hours to allow the product to settle. There are no incisions or dressings, making the treatment compatible with busy schedules and same-day commitments.

What effects should you expect?

Letybo produces a gradual softening of dynamic wrinkles while leaving natural expression intact. The face looks smoother, more relaxed, and more refreshed. Results appear progressively rather than instantly, making the change subtle and natural. With consistent treatments, patients often notice long-term benefits as the skin experiences less repetitive folding, helping prevent deeper creases from forming in the future.

How does it compare to Botox?

Letybo and Botox are both FDA-approved neuromodulators designed to soften dynamic wrinkles by relaxing specific facial muscles. Letybo offers consistent, reliable outcomes and is considered equivalent in effectiveness for patients seeking a natural, refreshed appearance. Because the two treatments behave similarly, the choice between Letybo and Botox typically comes down to provider preference, patient experience, and the treatment plan Dr. Kandula designs based on your goals and anatomy.

Dr. Swetha Kandula at Dermatology & Skincare Arts in Parsippany, New Jersey specializes in advanced cosmetic dermatology treatments with a focus on restoring natural beauty through minimally invasive techniques. If you are interested in treating dynamic wrinkles with Letybo or want a personalized plan for facial rejuvenation, schedule a consultation today and take the next step toward smoother, more refreshed skin.