I had heard of buckthorn before, but no sea buckthorn. here's what I found on WebMD about. Makes me wish it would grow around here.

Sea buckthorn is an herb. The leaves, flowers, and fruits are used to make medicine.

"Sea buckthorn leaves and flowers are used for treating arthritis, gastrointestinal ulcers, gout, and skin rashes caused by infectious diseases such as measles. A tea containing sea buckthorn leaves is used as a source of vitamins, antioxidants, protein building blocks (amino acids), fatty acids and minerals; for improving blood pressure and lowering cholesterol; preventing and controlling blood vessel diseases; and boosting immunity."

Thanks for posting!