[Comparative study of the vitamin activity of pyridoxal phosphate and pyridoxine used cutaneously]

In white rats with B6-avitaminosis, the B6-vitamin activity of pyridoxal-phosphate and of pyridoxine was studied in their epicutaneous and peroral application. It is revealed that pyridoxal-phosphate in epicutaneous application displays more activity than pyridoxine and pyridoxal-phosphate applied perorally. Pyridoxine in epicutaneous application does not reveal the B6-vitamin activity.