Recent advances have put some interesting possibilities on the table when it comes to tackling hair loss, from topical solutions packed with stem cells, to 3D-printed hair farms, to growing hair with a patient’s own cells. Scientists in China are now throwing another one into the mix that uses a dissolvable microneedle patch to stimulate hair growth, with the technology proving high effective in mouse models of hereditary pattern baldness.

Led by scientists at China’s Zhejiang University, the researchers set out to develop new treatments for the most common of hair loss conditions: male-and female-pattern baldness, also known as androgenic alopecia. The scientists sought to tackle the issue by focusing on what they say are the primary mechanisms behind this, namely oxidative stress and poor circulation.

This relates to the combination of accumulating reactive oxygen species in the scalp that kill off the cells behind new hair growth, and a lack of blood vessels around the follicles to provide them with nutrients and essential molecules. In this way, the team hoped to come up with a two-pronged approach to androgenic alopecia, and their solution starts with previous research carried out on liver injuries and Alzheimer’s.