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COIX LACRYMA-JOBI MA-YUEN SEED EXTRACT.

Valuable CAS - / SKIN CONDITIONING

Commonly known as Job's Tears, this nutrient-dense botanical extract is a multi-functional powerhouse in J-beauty and K-beauty for its ability to refine texture and brighten tone. It serves as a comprehensive skin conditioner that bridges the gap between deep hydration and anti-inflammatory protection.

Brightening Hydration Anti-inflammatory Antioxidant Barrier Repair

Science

This extract operates through a triple-action pathway: it inhibits tyrosinase activity to curtail melanin production and fade hyperpigmentation, utilizes rich polysaccharides and polar lipids to reinforce the moisture barrier at a cellular level, and deploys phenols and flavonoids to neutralize free radicals. Additionally, it downregulates pro-inflammatory markers and suppresses histamine release, making it effective at soothing reactive skin states.


Research

Medium confidence
Effective range N/A
Optimal

N/A

Key findings

  1. 01 Clinical observations indicate that consistent intake of Coix seed significantly enhances skin elasticity and barrier integrity.
  2. 02 In vivo studies demonstrated that 500 mg/kg oral administration markedly prevented SDS-induced water loss and reduced erythema and scaling over a four-week period.

Transparency

Commonly dusted
Min. effective
1%
Red flag below
0.1%

Due to its popularity in Asian skincare, it is frequently listed at very low concentrations (below 0.1%) for marketing claims. While safe at these levels, concentrations of 1-5% are typically required to see tangible benefits in brightening and barrier support.


The Formula

Solubility
Water
Optimal pH N/A
0 7 14

Stability

Generally stable in aqueous solutions; contains bioactive flavonoids that should be protected from extreme heat during processing.

Synergies

  • Niacinamide
  • Vitamin C
  • Hyaluronic Acid
  • Licorice Root Extract

Safety

CIR Status
Not reviewed
Pregnancy
Safe
Sensitization risk Low

Recognized as safe by EU cosmetic regulations. While non-irritating for the vast majority, those with specific grain allergies should perform a patch test.


Your Skin

Yes Normal
Yes Dry
Yes Oily
Yes Sensitive
Irritancy Low
Comedogenicity Low

Our Assessment

Valuable

An excellent botanical versatile enough for all skin types, particularly effective for addressing uneven pigment and chronic dehydration.


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