Ingredient Encyclopedia

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Castor Oil – Benefits, Side Effects & Uses

by ThankMeNow Editors on Sep 11, 2025

What is Castor Oil? Castor Oil is a thick, occlusive plant oil rich in ricinoleic acid. It is used to soften the feel of very dry skin and is common in cleansing balms. Benefits Very occlusive; locks in moisture. Useful for lip balms, body care, and cleansing oils. Side Effects Can feel heavy or sticky; avoid overuse on breakout‑prone areas. Not a medication for hair growth; results vary. How to Use Use a small amount over moisturiser on very dry patches or as part of a cleansing oil blend. Related Ingredients See also: Shea Butter, Squalane