What is rutin?

Rutin is a bioflavonoid found in foods like buckwheat and citrus fruits like oranges, lemons, and grapefruits.
It aids the body's utilization of vitamin C, the production of collagen, and may support the immune system.
Rutin is used in the production of medicine, and it is typically derived from buckwheat, Japanese pagoda trees, and eucalyptus.
Rutin is most commonly used to treat lymphedema and osteoarthritis-related swelling in the arms and legs.
It is also applied to the skin for sun protection, but there is no solid evidence to support these claims.