Technology Summary

The present invention allows for the delivery of vascular endothelial growth factor (VEGF) to the scalp through the use of novel degradable polymer microneedles that can load VEGF, thereby allowing VEGF to be delivered to a bald area for promotion of hair growth. Once VEGF is loaded onto the microneedles, the needles are inserted locally in the skin and the tips of the needles can remain at the application site until they dissolve. The base of the microneedles may be removed after the insertion. The illustration above is a photograph of the microneedle array used in experiments.