Check out John F. Hartwig's current and previous haircuts:
John F. Hartwig has had various hairstyles in recent years. He became famous as an outstanding chemist and university teacher. However, the American chemist is especially known for his remarkable fashion sense and his pleasant personality. Rumors and gossip about the 60-year old's haircut are always in the spotlight of celebrity magazines and tabloids. Check out John F. Hartwig's former haircuts in the image gallery right here:
© Ryo Itatsu, Institute of Transformative Biomolecules at Nagoya university, Japan / cc-by-sa-4.0