[Follicular penetration of nanocarriers is an important penetration pathway for topically applied drugs].
Hautarzt 2019;
70:185-192. [PMID:
30627746 DOI:
10.1007/s00105-018-4343-y]
[Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
BACKGROUND
The hair follicle represents a significant penetration route for topically applied substances.
ISSUE
The percutaneous absorption of substances can be significantly increased and accelerated by the involvement of hair follicles. In addition, nanoparticles have the characteristic to penetrate deeply and effectively into the hair follicles.
MATERIALS AND METHODS
An optimization of drug delivery for topically applied substances is possible if the nanoparticles act solely as a carrier to transport active ingredients into the hair follicle. Once the nanocarrier has penetrated into the hair follicle, the active substance must be released there. This can be triggered by various mechanisms.
RESULTS
The released drug can thus pass into the living tissue surrounding the hair follicle independently. With the help of this innovative strategy, the bioavailability of topically applied substances can be significantly improved.
CONCLUSION
The transport of active ingredients into the hair follicles with the help of particles and the release of active substances there is a very effective new method for transporting active substances through the skin barrier.
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