Sea Buckthorn Juice Benefits make this tart fruit drink a go-to choice for daily wellness. Sea buckthorn berries are rich in nutrients such as vitamin C, vitamin E, carotenoids and other plant compounds. The juice can be consumed as is, mixed with water, or added to smoothies. When selecting a product, check the ingredients, juice content, added sugar and serving instructions. “Quality and potency are not guaranteed. Follow label directions.” Sea buckthorn juice can be included in a healthy lifestyle not as a substitute for a nutritious diet or medical treatment.