Black Seed Oil Extract ? Natural Skin Care, Anti-Dandruff Hair Strengthener 100 g Black Seed (Nigella sativa) Black seed contains thymoquinone, thymohydroquinone, and flavonoids with strong anti-inflammatory and antioxidant properties. It is also rich in polyunsaturated fatty acids such as linoleic acid, which deeply nourishes skin and hair. For external care, black seed oil moisturizes the skin, soothes irritation, and helps reduce acne and rashes. It also combats dandruff, strengthens hair, and enhances shine. When applied to nails, it reduces brittleness and restores natural gloss with regular use. Products featuring black seed include herbal soaps and creams for sensitive skin, massage oils for soothing muscles and relieving aches, shampoos and conditioners for strong, healthy hair, and herbal toothpaste that utilizes black seed?s antimicrobial properties to support oral health.