Silybum marianum (L.) Gaertn., commonly known as milk thistle or holy thistle, is an annual or biennial herb belonging to the Asteraceae family. It features red to purple flowers and green leaves with fine white veins. Due to the milky, bitter white sap that oozes from its cut stems, it is also called milk thistle or bitter thistle. Its medicinal use in ancient Greece dates back over 2,000 years. The seeds are used in medicine and are bitter and cool in nature, with the functions of clearing heat, detoxifying, and protecting the liver and gallbladder. In 2014, silybum marianum seed oil was approved as a new food ingredient.

Keytrum Silybum marianum Seed Oil is made through cold pressing and filtration. It has the following benefits:

Soothing: It is also effective for sensitive skin. Vitamin E provides protective effects, while fatty acids help build the skin's natural moisture barrier.

Antioxidant: It can protect the skin from free radical damage, thereby reducing the appearance of dark spots, fine lines, and wrinkles.

Detoxifying and anti-inflammatory: Local application of silybum marianum oil can reduce redness and itching while improving skin hydration. When used alone or taken orally, it is often regarded as a natural treatment for acne.