Castor Oil Brow Serum
3.57 from 16 votes

Castor Oil DIY Eyebrow Serum

There's an at-home solution for thicker eyebrows that's every bit as good as the pricey products and treatments. The secret ingredient? Castor oil!
Prep Time5 mins
Total Time5 mins
Course: DIY Beauty
Keyword: eyebrow serum
Yield: 2 ounces
Author: Stephanie Gerber
Cost: $8




  • Combine all the oils in a 2-ounce jar (for the Vitamin E oil, prick a small hole in the capsule and squeeze it to remove the oil).
  • Replace the lid and shake to combine before using.


Apply morning and night for best results. Shake well and dip in a clean mascara brush and smooth over eyebrows. Massage serum into dampened eyebrows for 10-20 seconds to ensure deep absorption. Wait 5-10 minutes before carrying on with your beauty routine.
Use within 6 months.
You can buy empty mascara tubes, but it’s also pretty easy to store the serum in a small jar and use a Q-tip or clean eyebrow wand to apply to the brows.