According to New York-baseddermatologistDr.
But does castor oil really make your eyebrow hair grow?
What happens when you put castor oil on your eyebrows every day?

“It’s a unique TGFA called ricinoleic acid, which is fairly rare in the plant kingdom.”
However, as Dr. Joshua Zeichner, dermatologist and director of cosmetic and clinical research in dermatology at Mt.
“There is no scientific or published evidence regarding castor oil and hair growth,” she toldRefinery29.

“Also, it can be occlusive, which can increase hair loss.”
AsByrdiereports, Marie Claire writer Sherri Soliman has experienced this firsthand.
In addition to causing hair loss, castor oil also has the potential to aggravate your skin.
“No point in irritating both brows for no reason.”