Sea buckthorn is a type of shrub that includes a number of different types of vitamins, minerals, fatty acids and amino acids. It is found native in areas of Europe and Asia. Since ancient times, it has been used for medicinal purposes (and in some instances, cosmetic purposes), most typically in the forms of oils and teas.
The most popular use of sea buckthorn is to provide relief from dry eyes. Though it has also been used to support healthy immune system, stomach, cardiovascular support, cholesterol and blood pressure. Some studies have even shown it to help slow tumor growth, though these studies are preliminary and no definitive claims are yet made for this.
Sea buckthorn is generally accepted as a safe oral supplement. Side effects are rare, though there are some reported reactions by those with high blood pressure (headaches and dizziness), and those who are already on blood-thinner medications (sea buckthorn can cause blood thinning, and therefore should not be used in combination with blood-thinner meds). In addition, women who are pregnant or nursing should consult a physician before consuming sea buckthorn.