Articles with titles like “One Simple Beauty Trick for Thicker Brows and Longer Lashes” often refer to applying castor oil to the eyebrows and eyelashes.
What people claim
Castor oil contains fatty acids and acts as a moisturizer, so some people report that their brows and lashes look:
- Fuller
- Shinier
- Less brittle
What the evidence says
There is no strong scientific evidence that castor oil directly makes eyebrows or eyelashes grow faster, longer, or thicker. However, conditioning the hairs may reduce breakage, which can make them appear fuller over time.
How to use it safely
- Clean your face and remove makeup.
- Apply a tiny amount of castor oil to brows or lashes with a clean spoolie or cotton swab.
- Avoid getting it in your eyes.
- Wash it off if irritation occurs.
Be cautious
- Castor oil can cause irritation or allergic reactions in some people.
- If you have sensitive skin or eye conditions, consider doing a patch test first.
- Products specifically designed for eyelashes and eyebrows may be safer and easier to apply.
If you’re looking for proven lash growth treatments, some prescription medications can increase eyelash growth, but they should be used under the guidance of a healthcare professional.
