Description

The Smudge-Proof Claim Test evaluates a cosmetic product’s ability to resist smearing, rubbing, or transfer when subjected to touch or friction. This test is critical for substantiating claims like “smudge-proof,” “no-transfer,” or “long-lasting,” especially for products such as eyeliners, mascaras, lipsticks, and foundations.

The procedure involves controlled application of the product followed by mechanical rubbing or simulated contact, with pre- and post-assessments to check for changes in appearance, texture, or coverage. Both visual grading and instrumental analysis are used to ensure objective, reproducible results.

This test helps ensure claim integrity, supports regulatory compliance, and builds consumer trust by proving that the product maintains its intended look and performance throughout daily wear.