Hypericum Perforatum Flower/Leaf/Stem Extract Description
flower/leaf/stem extract (also known as St. John’s wort) is a plant that contains several components that can cause a negative reaction on skin when it is exposed to sunlight. However, this is a bigger concern when taken orally. Like most plants, it’s a rich source of antioxidants.
Peer-reviewed, substantiated scientific research is used to assess ingredients in this dictionary. Regulations regarding usage constraints, permitted concentration levels and availability vary by country and region.