How To Use Castor Oil For Eyelashes, From An Optometrist

I don't know about you, but I'm particularly fearful of testing new lash serums. I've seen countless videos online of lash serums gone wrong, paired with photos of redness, swelling, and rashes—so you probably understand why I'm extra careful when it comes to vetting these products. 

"I am an optometrist, and I actually use castor oil on my eyes every day," optometrist Carly Rose, O.D., says in her recent TikTok video. 

Rose clearly states that it's not going to improve your vision or transform the health of your eyes (like some people have claimed online), but it's still a safe staple for your lashes. 

That being said, Rose has strict requirements for the castor oil she uses—given it's going near your eyes, it's worth the extra consideration. 

"I always look for a castor oil that is organic, unrefined, hexane-free, and cold pressed," she states. Her top pick is the Kate Blanc Cosmetics Castor Oil, if you want to skip the search. 

Even with an optometrist-approved product, you have to be mindful of how you apply it. She explains that your eyes, hands, and face should be totally clean—no makeup, SPF, dirt, etc. 

"I clean my hands and put a couple drops on my finger, and I use it to really get into the bed of my lashes, eyebrows, and eyelids," she says. As far as benefits, Rose lists lash growth, eyebrow growth, and dry eye support.