DR TIM EVANS / SCIENCE PHOTO LIBRARY DR TIM EVANS / SCIENCE PHOTO LIBRARY
Minoxidil molecule. Computer model of a molecule of the hair growth drug minoxidil, also known by the brandname Rogaine (C9.H15.N5.O). Atoms (tubes) are colour-coded: carbon (yellow), nitrogen (dark blue), oxygen (red) and hydrogen (grey). Minoxidil was originally used to treat high blood pressure, but was also found to increase hair growth. This led to its development as a liquid that is applied to the scalp to increase hair growth where bald patches have formed.
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