Atefeh Naeimifar, Saman Ahmad Nasrollahi,
Volume 12, Issue 2 (8-2021)
Abstract
Microneedles consist of micron-sized projections similar to needles. They are capable of piercing through the stratum corneum and increase the permeation of active ingredients. Besides active pharmaceutical ingredients, microneedles can also deliver cosmetic agents, biotherapeutics like insulin and vaccines and also are used in diagnostic purposes. This article examines the types of microneedles. It also describes the function, classification, and differences between them.