How to Use Castor Oil

Can Castor Oil grow hair? Enhance lashes and regrow sparse eyebrows? This article explains how to use Castor Oil on hair, eyebrows and eyelashes.

Can Castor Oil Actually Grow Hair?

People swear by Castor Oil for growing long, strong hair. But research studies to date don’t show much evidence supporting Castor Oil causing actual hair growth. But don’t abandon Castor Oil just yet.

Castor Oil thickens thinning hair and acts as a humectant for frizzy hair. It makes unruly hair (including brittle gray hair) incredibly soft.

Castor oil is thick, you may find it easier to work with if mixed with Rice Bran Oil or Sweet Almond Oil.

Castor Oil is also exceptionally useful for eyelash growth/conditioning.


How to Grow Longer Lashes and Better Eyebrows with Castor Oil

There are two ways I like to apply Castor Oil to my eyelashes.

First, try applying Castor Oil to a cotton swab and blink your eyelashes over the tip to avoid getting it in your eyes.

The second way is I take a mascara spoolie (Amazon sells disposable ones pretty cheaply) and dip it in Castor Oil. Then I wipe most of it off and apply the remaining oil on the spoolie to my eyebrows first, then lightly comb the top and bottom sides of my lashes. A little goes a LONG way.

A mix of castor oil and another oil can be decanted into an empty mascara tube  to be applied to lashes and brows. These refillable tubes are available online.

Castor Oil is also good for conditioning eyebrows. Eyebrows do seem to grow in thicker and sparse spots fill in with daily castor oil use.

Daily Castor Oil use makes for fuller eyebrows with filled in sparse spots, and the actual eyebrow hairs look thicker and more youthful.

You may choose to apply the castor oil several hours before bedtime to avoid getting puffy eyes from too much oil.


Research does not yet support that Castor oil can cause hair to regrow, but it does stop hair breakage by retaining moisture. Castor oil is thick, you may find it easier to work with if mixed with Rice Bran Oil or Sweet Almond Oil. Both these oils also enhance hair health.

Was How to Use Castor Oil useful? Another useful humectant is Hyaluronic Acid.


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