Researchers at Colorado State University have developed a visual color-coded system that reveals the quality and strength of CBD oil at a glance. By comparing the color of the liquid to a special reference scale on the label, users can immediately see if the product has lost its potency. The technology detects when CBD has been damaged by sunlight, heat, or air, changing from clear to shades of yellow, pink, or brown. This simple tool helps consumers and companies ensure their products are safe and work as intended without needing expensive lab tests.
Cannabidiol (CBD) is highly sensitive to environmental stressors, including light, heat, and oxidation, which trigger chemical instability in lipid-based carriers like oil. While CBD is widely used for its therapeutic properties, it lacks an intuitive, real-time method for verifying potency outside of a laboratory. This technology is novel because it establishes a quantified correlation between color coordinates and actual cannabinoid degradation. By identifying specific color patterns associated with different stressors, it provides a unique diagnostic window into the storage history and chemical integrity of the formulation.
This technology enables real-time assessment of CBD oil quality by linking visible color changes to chemical degradation. It uses a calibrated color-based system to translate complex chemical instability into an intuitive visual indicator of potency loss. As CBD oil is exposed to environmental stressors such as light, heat, and oxygen, it undergoes predictable color shifts that reflect its degradation state.
The system uses a simple color-changing scale to show how much a CBD product has broken down over time by tracking these natural color transitions. As the product loses strength, it moves away from its original clear appearance and progresses through identifiable colors, including yellow, pink, and eventually deep brown. By matching the oil’s current color to a reference guide on the label or packaging, users can quickly determine whether the product remains potent or has degraded.
Importantly, the technology also provides insight into the underlying cause of degradation. Distinct color patterns correspond to specific environmental stressors—for example, light exposure often produces reddish or purple tones, while heat drives yellowing. By decoding these patterns, the system effectively reveals the product’s “storage history,” offering both consumers and manufacturers a practical tool to verify quality, identify handling issues, and ensure product integrity without laboratory testing.
Available for Exclusive Licensing
TRL: 8
US Provisional Patent
Sanghyuck Park
Byeong Ryeol Ryu
Jessy McGowan
Jessy.McGowan@colostate.edu
970-491-7100