Rosemary for Hair Health

Research suggests that rosemary, both as an extract and as an oil, may offer several benefits for scalp and hair health, including antifungal, anti-inflammatory, and antioxidant effects. The available evidence comes from a small number of studies of varying designs, including a randomized controlled trial examining scalp antioxidant protection, a formulation study comparing rosemary-containing products against standard treatments like ketoconazole and minoxidil, and an open-label trial evaluating a multi-ingredient serum in women with hair loss, with the overall direction of findings being generally supportive. Studies indicate that rosemary-containing formulations may help reduce dandruff-related fungi, lower oxidative stress on the scalp, and support hair growth metrics such as density and thickness, though it is worth noting that most of the research involves rosemary as part of combination products rather than as a standalone ingredient, making it difficult to isolate its specific contribution. The open-label study in particular lacks a control group, which means factors such as placebo response or natural variation cannot be ruled out, and further well-controlled trials would be needed before stronger conclusions can be drawn.