What is broccoli seed oil? Broccoli Seed Oil is an oil extracted from the seeds of the Brassica Oleracea Italica (broccoli) plants. Being high in omega 6 & 9, the oil created by cold pressing the broccoli seeds is nourishing and known for outstanding non greasy moisturizing properties. It is also very hydrating and improving the retention of moisture by the skin and hair. It is often used in hair care products like solid hair-masks, and shampoo and conditioner bars. In addition, it can be used very well in a wide variety of skin care products. It can be used for all hair and skin types, including sensitive skin, acne-prone skin, and is especially effective for dry hair.