Coix Lacryma-Jobi Seed Oil
INCI: COIX LACRYMA-JOBI SEED OIL
Reviewed by Daisy · Last updated 2 Jun 2026
Also known as: Coix Lacryma-jobi Seed Oil
A plant oil with traditional use in skincare and emerging research into skin conditioning properties
Best For Skin Types
All, Dry, Combination
Addresses
Usage Frequency
Daily
What Is Coix Lacryma-Jobi Seed Oil?
Coix Lacryma-Jobi seed oil is extracted from the seeds of Job's tears, a grain native to Southeast Asia with a long history in traditional medicine systems. The oil is rich in fatty acids and other lipid compounds that support the skin's outer layers.
In skincare formulations, it functions as a skin conditioner, helping to soften and smooth the skin surface. It is typically used in smaller concentrations within broader formulations rather than as a standalone treatment.
How It Works
The oil's conditioning effect stems from its composition of fatty acids and lipids, which can sit on the skin surface and create a protective layer. This layer helps reduce transepidermal water loss, supporting skin hydration and preventing dryness.
Traditional use suggests additional benefits, though the mechanisms behind these claims require further research in a skincare context.
Clinical Evidence & References
Research into coix seed has primarily focused on oral consumption and systemic immune function rather than topical skincare applications. A small study in healthy adults suggested that coix seed consumption may influence immune markers and gut health, though this does not directly translate to proven topical benefits.
Evidence specifically supporting topical use of coix seed oil in skincare is limited. Further clinical studies on the ingredient in cosmetic formulations would help clarify its effects on skin condition and any targeted benefits.
How to Use
Coix Lacryma-Jobi seed oil is typically found in moisturisers, serums and other leave-on products. Follow the usage instructions on your product label; as with any oil-based ingredient, a little often goes a long way. It can be used daily as part of your regular skincare routine, though those with very oily or acne-prone skin may prefer to use it selectively or in lighter formulations.
Safety & Precautions
Frequently Asked Questions
From the Clinic
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