5. Improves Lash Thickness and Shine
With consistent use, users report fuller-looking lashes and brows that appear glossier and healthier. This is due to improved moisture retention and follicle nourishment.

How to Make and Use Vaseline and Castor Oil Serum at Home
Creating your DIY lash and brow serum is easy, affordable, and takes less than five minutes.
Ingredients:
- 1/2 teaspoon Vaseline (preferably petroleum jelly without added fragrance)
- 1/2 teaspoon cold-pressed castor oil
- Optional: 1 drop vitamin E oil for added nourishment
Instructions:
- First, mix the ingredients together in a small, clean container until they form a smooth, creamy texture.
- Then, prepare your lashes and brows by gently removing any makeup or oil. Wash and dry your face thoroughly.
- Next, dip a clean mascara wand or cotton swab into the mixture. Tap off any excess to avoid dripping into your eyes.
- Apply the serum carefully to your upper and lower lash lines, just as you would apply eyeliner. Repeat over sparse brow areas.
- Leave it on overnight, allowing the ingredients to soak in while you sleep.
In the morning, rinse off with warm water and a gentle cleanser. Pat dry and repeat daily for 7–10 days.