Consume adequate vitamins
Studies show that a lack of adequate nutrients such as iron or biotin can result in hair loss or slow hair growth. In most cases, the quantity of biotin [1] in your body is enough to prevent hair loss. But your doctor may recommend a hair supplement or vitamin if your case is severe. The supplement may contain biotin and other vital nutrients that help improve hair growth and strength. A study done in 2018 showed the effects of an oral supplement known as Nutrafol in enhancing hair growth. The study showed that women who experience hair thinning might see changes after six months of using the supplement.
Nutrafol contains high levels of vitamins, saw palmetto, collagen [2], minerals, biotin [3], and other ingredients. You can use the supplement to grow your eyebrows, but you must do more research. It would help to know that the manufacturers of Nutrafol funded the study. The Food and Drug Administration does not control the uniqueness and quality of supplements. So, the ingredients in Nutrafol may come in different concentrations in every packaging.