CD Formulation - Microneedle Performance Testing

Need for Microneedle Performance Testing: The viscoelasticity of the skin reduces the penetration power of microneedles, which must have sufficient mechanical strength to penetrate the skin. The insertion force required for microneedles to enter the skin barrier is approximately 0.098 N/needle to penetrate the stratum corneum. Therefore, when microneedles are evaluated, the materials and methods used for their preparation, their design and their performance, safety issues, and commercialization issues are developed. Currently, we can characterize microneedles based on their manufacturing procedure, structure, material, general shape and size, tip shape, microneedle array thickness, and application.