Packaging & Stability
Cosmetic wand-package testing: temperature and altitude
The work separated temperature-related changes in the formulation and applicator from reduced-pressure leakage risk across three anonymized package variants.
Selected findingAt 40 °C, maximum losses were 93 mg, 52 mg, and 51 mg; the 93 mg result came from one anomalous unit, while the maximum among the remaining Variant A units was 46 mg.