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Difelikefalin

Published: July 26, 2026Updated: July 26, 2026

Letybo is an injectable botulinum toxin type A product used for cosmetic purposes to temporarily improve the appearance of moderate to severe glabellar lines (frown lines) in adults. It works by relaxing the underlying facial muscles to create a smoother, more rejuvenated appearance.

Quick summary

Letybo is an aesthetic botulinum toxin injection used to temporarily smooth facial wrinkles between the eyebrows.

Medically reviewed by WellAlly Editorial TeamLast reviewed July 26, 2026Editorial policy

Key facts at a glance

RxNorm
2689291
Generic
Letybo
Class
brand-name
Brands
—
Availability
rx
Lactation
unknown
Routes
—
Forms
—
Regions
US, EU, CN, JP
Monitoring
—

This page is for informational purposes only.

Do not use this information to diagnose yourself or to replace a physician's advice. Always consult a qualified healthcare provider before starting, stopping, or changing any medication. If you believe you are experiencing a medical emergency, call your local emergency number immediately.

Temporarily treats moderate to severe glabellar lines (vertical frown lines between the eyebrows) in adult patients seeking cosmetic improvement.

Contains botulinum toxin type A, which is injected into targeted facial muscles to temporarily block nerve signals that cause muscle contractions, resulting in relaxation of the overlying skin and reduced appearance of wrinkles.

Should only be administered by qualified healthcare professionals. Common side effects may include injection site reactions, headache, or temporary eyelid drooping. Effects are temporary, typically lasting 3-4 months. Patients should inform their provider of all medical conditions and medications before treatment.

Official drug label

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This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed July 26, 2026. · Read our editorial policy