ΔE in stability testing refers to the measurable color difference between a product’s baseline appearance (T0) and subsequent timepoints during a stability study. Rather than relying only on visual observation, ΔE quantifies how much a product’s color has changed over time.
Camera Based Stability Testing at Pentyl Labs Camera based stability testing enhances traditional visual stability studies by turning appearance changes into measurable, trendable data. Instead of relying only on subjective observation, Pentyl Labs performs controlled digital imaging to quantify color shift,
Cosmetic Stability Testing Cosmetic stability testing evaluates how a finished product maintains quality, safety, and performance over time. At Pentyl Labs, cosmetic stability testing helps determine shelf life, Period After Opening (PAO), and overall product durability under both real-world and accelerated conditions.
