Abstract: The present invention relates to a botulinum toxin type A complex, and a formulation thereof and a usage method therefor. The present invention provides the botulinum toxin type A complex, comprising an HA70 component, and an HA17 component, an HA33 component, an NTNH component, and a BoNT/A1 component, wherein the botulinum toxin complex has a molecular weight of 740-790 kDa. Compared with the existing botulinum toxin complexes, the botulinum toxin complex of the present invention is smaller in molecular weight and higher in safety, and has a comparable treatment effect.

Abstract: A water dermabrasion and skincare device includes a water jet, a positive-pressure air compressor, a negative-pressure air compressor, a three-way flow control valve, a skincare container, a cuticle softening container and a waste water tank. The water jet is formed with a water outlet joint and a water inlet joint, which is connected to a water outputting end of the three-way flow control valve, while the water outlet joint is connected to the negative-pressure air compressor. Two water inputting ends of the three-way flow control valve are connected to a pure water bottle. When the three-way flow control valve is switched to a dermabrasion position or a skincare position, the negative-pressure air compressor can be started to generate a vacuum suction, which will suck pure water from the pure water bottle to flow into the water jet for executing a dermabrasion operation or a skincare operation.