Botox Unit Guide 2026: How Many Units per Zone?

What is a unit?

Botulinum toxin is dosed in units, standardised against an LD50 reference. Brand units are not directly equivalent: 1 Botox U ≈ 2.5–3 Dysport U; Xeomin U ≈ Botox U.

Zone-by-zone reference ranges

Disclaimer: These are literature references, not prescriptions. Your plan is set after physician assessment.

Upper face

Lower face / masseter

Hyperhidrosis (each axilla)

Male dosing

Higher muscle bulk and skin thickness mean dose is typically 25–50% higher in male patients for glabella, masseter, and frontal zones — important to preserve a natural look.

Bottom line

Correct dose depends on zone, brand, and patient. Tables are references; the plan is personalised at consultation.