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DIY Lash and Brow Serum

  • Author: Lauren Kenson
  • Prep Time: 5 min to make
  • Total Time: 5 min to make


Looking for a safer Lash Serum or Brow Serum? This DIY Lash and Brow Serum uses all natural ingredients and essential oils. And is so simple to make!


  • 10 ml empty mascara tube with wand
  • castor oil 
  • 13 drops lavender essential oil
  • 13 drops cedarwood essential oil (optional)
  • Optional: add a few drops of pure vitamin E oil for a boost

see notes for details on where to get oils + how to customize!


  1. Add essential oils and vitamin E (if using) to the empty mascara tube
  2. Top off with castor oil, filling just shy of the top to leave room to reinsert the wand
  3. Twist cap back on, and tilt gently back and forth to combine ingredients
  4. Use nightly by brushing onto eyebrows or lashes, taking care not to get in your eyes


If you have sensitive eyes you can omit the essential oils – I love to use them for my brows. As with anything on my site, I am not a medical professional, so consult your physician prior to use and use your best judgment.

You can get a starter kit that comes with the pure essential oils you need for all these DIYs, click order here to see how to sign up + see all the perks!

PS – If you sign up with me I’ll send you the tube with mascara wand for free -or- a free diffuser, your choice!