What it is
Hypericum perforatum extract is obtained from the flowering tops and aerial parts of St. John's wort and contains a mixture of plant compounds including flavonoids and other polyphenols. In skin care and sun care it is used as a botanical conditioning agent valued for soothing and antioxidant character. It is a supporting ingredient and does not contribute UV filtering.
Safety & warnings
St. John's wort contains hypericin, a constituent associated with photosensitization at higher exposures, which is a particular consideration in a sun-care context; cosmetic extracts are typically standardized and used at low levels to limit this. As with any botanical, sensitive individuals could occasionally react, and the extract may carry a faint characteristic plant scent.
Origin & sourcing
Natural botanical extract from the aerial parts of Hypericum perforatum (St. John's wort).
History
St. John's wort has a long history of traditional topical use on the skin, and the extract is now incorporated into cosmetics as a botanical conditioning ingredient.
Questions everyone asks
Why is St. John's wort used in skin care?
It is included as a botanical conditioning and soothing agent rich in flavonoids and other polyphenols with antioxidant character.
Can it cause sun sensitivity?
St. John's wort contains hypericin, which is linked to photosensitization at higher levels; cosmetic extracts are used at low, controlled concentrations to limit this concern.