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BIS-COUMARAMIDOBUTANE.

Valuable CAS - / SKIN CONDITIONING

A sophisticated hydroxycinnamic acid derivative sourced from corn bran that functions as a dual-action brightening agent and cellular protector. It is highly valued in precision skincare for its ability to neutralize oxidative stress while simultaneously addressing hyperpigmentation at the enzymatic level.

Antioxidant Skin Brightening Skin Conditioning Detoxification Support

Science

This phenolamide molecule interrupts the melanogenesis pathway by inhibiting tyrosinase, the primary enzyme responsible for pigment production. Beyond brightening, it acts as a high-performance antioxidant that scavenges superoxide and hydroxyl radicals, shielding dermal structures from degradation and supporting the skin's natural detoxification processes.


Research

High confidence
Effective range 0.05–0.1%
Optimal

0.1%

Key findings

  1. 01 Clinical evaluation published in the Journal of Agricultural and Food Chemistry confirmed that a 0.1% concentration provides significant tyrosinase inhibition and radical scavenging activity.
  2. 02 KISTI stability assessments verified that the molecule maintains 80-90% potency over 90 days in both O/W and W/O emulsions under thermal stress (40°C).

Transparency

Commonly dusted
Min. effective
0.05%
Red flag below
0.01%

Because this ingredient is effective at exceptionally low concentrations (0.1%), brands may include it at trace amounts below 0.01% simply for label claims. For clinical results in brightening and antioxidant protection, a concentration of 0.1% is the established benchmark.


The Formula

Solubility
Oil
Optimal pH 4 – 7
0 7 14

Stability

Demonstrates excellent thermal stability up to 40°C. However, it is sensitive to UV exposure and alkaline environments; advanced formulations often utilize encapsulation to ensure deep penetration and long-term integrity.

Synergies

  • Sunscreen UV filters
  • Vitamin E
  • Ferulic Acid
  • Liposomal delivery systems

Conflicts

  • Strong oxidizing agents
  • High pH formulations (>7.5)

Safety

CIR Status
Not reviewed
Max tested
0.1%
Pregnancy
Safe
Sensitization risk Low

While not yet formally reviewed by the CIR, it is approved for use in the EU (CosIng) and has a long history of safe application in high-end global formulations at concentrations of 0.1% or less.


Your Skin

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

Our Assessment

Valuable

An elite, low-dose antioxidant and tyrosinase inhibitor that offers exceptional stability and multi-faceted protection against photo-aging.


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