Microneedle for delivery of cosmeceuticals and enhancing skin appearance

There has been a significant surge of interest in youth to furnish their appearance. The emerging new-age technology focuses not only on studies or careers but also on health, skincare, and cosmeceutical inventions. Meanwhile, various regular environmental hazards like air pollution and UV radiation are increasing, causing worsened damage to our skin. Among all the skin-related problems, premature aging has drawn much attention in the last few decades in the dermatology sector. Earlier, people used to undergo surgery for antiaging treatment, but the side effects and postsurgery pain made this method inconvenient. Microneedle technology emerged as a revolution while dermatologists were searching for a less invasive or less painful procedure as it was already gaining popularity among intradermal drug delivery methods. The well-built structure of the skin is difficult to penetrate for drug delivery, but the advanced design of various kinds of microneedles has revolutionary applications in different arenas like vaccine delivery, biotherapeutics, and many more. Though much research is devoted to microneedling, only a few products, like dermarollers, could make it to the market. Still, there is a great demand for these few products among people. Microneedling not only gives an excellent alternative to painful procedures but has also been proven to be a better method with greater efficiency, having controlled drug delivery and a user-friendly approach. This chapter describes how different types of microneedles are structured to pierce their complex structure of them while emphasizing the entire range of applications of each of them.