Ratanjot oil, often referred to by its source, the Alkanet root (Alkanna tinctoria), is a traditional Ayurvedic preparation widely known for its intense deep red color, derived from the root's naphthoquinone pigments like alkannin and shikonin. The oil is typically prepared by infusing the dried root pieces in a carrier oil (such as coconut or apricot oil), which then takes on the striking red hue. Beyond its common use as a natural food and cosmetic dye—famously giving dishes like Rogan Josh their signature color—Ratanjot oil is highly valued for its therapeutic properties, including anti-inflammatory and wound-healing effects. Primarily used externally, it is a popular remedy in hair care to prevent premature graying, strengthen hair roots, and control hair fall, while also being applied topically to the skin to soothe inflammation and help heal minor burns and scars.