St. John's Wort infused in sunflower oil can be used in hair care products to moisturise and condition the hair and scalp. It may help soothe the scalp and promote healthier-looking hair. St. John's Wort infused in sunflower oil is known for its soothing and calming properties. It can help nourish and restore the skin, promote a balanced complexion, and provide relief to irritated or inflamed skin.