Question: is onion juice good for eyebrows?
Answer: Can Rubbing Onions (Yes, Onions) on Your Eyebrows Help Them Grow? ... In the caption, Kattan writes, "Onion juice has sulphur which speeds up the growth of hair and makes it thicker." She advises viewers to massage onion juice onto their brows for five minutes and then wash it off with a mild cleanser or cold water.