Xeomin vs. Botox: What's the Real Difference?

Medically reviewed & written by Channing Barnett, MD, board-certified dermatologist (Princeton · Albert Einstein College of Medicine · Columbia), Boca Raton & Delray Beach. Full profile →

Patients ask me about Xeomin versus Botox more than almost any other cosmetic question, usually because they've heard Xeomin is "purer" or "won't stop working" the way Botox supposedly can. Here's what's actually true, and what isn't.

What they have in common

Xeomin and Botox are both botulinum toxin type A. They work the same way once injected: blocking the nerve signal that tells a muscle to contract, which softens the wrinkles that repeated muscle movement creates. Both are FDA-approved for cosmetic use and treat the same areas, forehead lines, frown lines, crow's feet.

The real formulation difference

The one genuine molecular difference is that Xeomin is a "naked" formulation, purified to remove the accessory proteins that surround the active toxin in Botox and Dysport. Manufacturers market this as potentially reducing the chance the body develops antibodies against the toxin over repeated treatments. It's a real formulation difference, though how much it matters clinically for most patients is genuinely debated.

Onset, results, and how long they last

In practice, the two are very comparable. Onset is typically within a few days to about a week, and results usually last around 3 to 4 months for most patients. Individual factors, metabolism, muscle strength, dose, and injector technique, affect longevity more than which of the two toxins you choose.

Does the protein difference actually matter?

True treatment resistance, where a patient stops responding to a toxin because their body built antibodies against it, is uncommon at the doses used for cosmetic treatment. It's more of a consideration for patients receiving very high, frequent doses for medical conditions like migraines or muscle spasticity. For most cosmetic patients, the theoretical antibody advantage of Xeomin's naked formulation isn't something you're likely to notice in practice.

Cost and availability

Pricing per unit is typically comparable between the two. The more practical factor is availability, not every practice stocks every brand, so which one you're offered can come down to what your provider carries rather than a meaningful clinical difference.

How a dermatologist chooses

If a patient has used one before and responded well, I usually stick with what's worked. Beyond that, I'm weighing the same things regardless of brand: your anatomy, your goals, and dosing accurately for the area being treated. The toxin brand matters far less than the hands and judgment behind the needle. If you're not sure which one is right for you, I'm happy to talk through your history and goals.

Frequently asked questions

Related: Botox vs. Dysport · injectables at Barnett Dermatology · Is Botox safe at a medspa?