Yes, there are 2 types of botulinum toxin that are approved for use in humans – type A and type B.
Botulinum toxin A is approved for cosmetic use and botulinum toxin B is used medically for different types of muscle diseases.
The most common brand names for botulinum toxin type A are BOTOX®, Vistabel, Azzalure and Dysport.
Type B botulinum toxin brand names include Myobloc®/NeuroBloc®. These can occasionally be used if patients develop a resistance to the type A formula, which is estimated at 1 in 10,000.