After specialist training in plastic surgery, Per Hedén worked for some time in Australia, where he further trained in microsurgery, a new technology that gradually came to revolutionize plastic surgery. Back in Sweden, he pioneered microsurgical procedures in the early 1980s in Stockholm. The technology provided new opportunities to perform advanced reconstructive surgery – an area in which he still has a great commitment, especially regarding the repair of facial paralysis.

In the early 1990s, he started Akademikliniken with his colleague Jan Jernbeck, where he practiced for about 25 years. The clinic developed into the largest private clinic in Europe with more than 5,000 surgical procedures and more than 50,000 non-surgical treatments per year.

Per was one of the first plastic surgeons in the world to use botulinum toxin and hyaluronic acid (HA) fillers. He was involved in the introduction of the first non-animal-based HA in 1996 and has since acted as an expert specialist for various companies in this field. He is internationally renowned for his non-surgical facial rejuvenation techniques, which he has demonstrated and lectured on around the world.

Per is active in a large number of international plastic surgery associations. He has served as a jury member, supervisor and faculty member on several medical dissertations, is a regular referee for scientific articles and is a member of the editorial board of two of the most reputable international journals;  Aesthetic Plastic Surgery Journal and Plastic and Reconstructive Surgery Journal.

He has written a book with patient information, Plastikkirurgiboken; Published in Swedish in 1996 and later translated into English (Plastic Surgery and You) and Russian. The book has sold over 20,000 copies.  He has contributed numerous chapters in medical textbooks on the topic of breast augmentation, facial paralysis and non-surgical facial rejuvenations with injectable drugs, published more than 100 peer-reviewed medical articles, developed several new surgical techniques, held numerous international workshops and lectures, and conducted surgical demonstrations of his techniques in countries all over the world. He is a frequent lecturer and moderator at international medical congresses.

In 2002, as initiator, organiser and chairman, he started the international plastic surgery conference “Beauty Through Science”, which is held every year in Stockholm. From 2021, this conference also has an annual meeting in New York, USA. The BTS conference is now the largest aesthetic medical conference in Northern Europe. In 2019, it was visited by close to 1,000 participants from 60 countries.

Per has a scientific commitment and participates in the development of new products and technologies.  He holds several patents in the field of new medical technology and is the founder and co-owner of companies working in the medical technology industry.