| abstract |
Embodiments described herein relate to nanoemulsions comprising botulinum toxin. In one embodiment, the nanoemulsion is prepared by high pressure microfluidization, and comprises a particle size distribution entirely between 10 and 300 nm. The nanoemulsions contemplated by the present invention are useful for cosmetic and medical treatment of muscle building conditions. For example, botulinum toxin can relax the facial muscles to make the skin wrinkles smoother and less noticeable. In addition, the present invention also contemplates cosmetic preparations that can be self-administered secretly, for example, without instructions from a doctor at home. |