Coix Lacryma-Jobi Ma-Yuen Seed Oil

Coix Lacryma-Jobi Ma-Yuen Seed Oil is a botanical oil extracted from the seeds of Job's tears (Coix lacryma-jobi), a grain crop cultivated across East Asia. The oil is rich in fatty acids and emollients that work to condition and protect the skin barrier.In skincare formulations, this oil functions primarily as a skin conditioner—it helps to soften, smooth and maintain skin hydration. Because it has a relatively light texture compared to heavier plant oils, it can be incorporated into various product types without leaving an occlusive feel.

The oil works through its composition of fatty acids and lipids, which mimic the skin's own natural oils. When applied to skin, these compounds penetrate the outer layers and help to fill gaps between cells, creating a smoother, softer surface and reducing transepidermal water loss.Because the oil is relatively lightweight, it can work effectively without sitting on the skin surface, making it suitable for inclusion in serums, moisturisers and body care products where a non-greasy feel is preferred.

This oil can be used daily as part of a moisturiser or serum formulation. If using a product containing this ingredient, apply to clean, damp skin and allow it to absorb fully before applying other products. It works well in combination with other hydrating or barrier-supporting ingredients, and there are no known interactions with common skincare actives.

This ingredient is generally well-tolerated across skin types. Those with specific oil sensitivities should patch test first, though the lightweight nature of this oil makes it suitable for most skin types.