Andrea Suarez, MD, FAAD on Instagram: "Castor Oil For Lash Growth? While there is no evidence that castor oil can directly grow hair, it is very viscous & hydrating. Castor oil coats the lashes, making them appear thicker & reducing lash breakage. Ricinoleic acid in castor oil may act like prostaglandins, impacting the hair growth cycle to promote lash growth. However, this has not been proven yet, so take it with a grain of salt. Risks of using castor oil for lashes include allergic skin…
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