01 · Evidence context
What the rating actually records
The rating is often repeated online without its test context. Fulton used a sensitive animal model and acknowledged uncertainty when extending positive rabbit-ear results to people and complete cosmetic formulas.
The number is retained as a historical observation. The site does not convert it into a current clinical probability or a complete-product grade.
02 · Formulation context
Why the complete formula can differ
Cocoa butter may appear as Theobroma Cacao Seed Butter on a label. Face, lip, hair, and body products create different exposure patterns, while concentration and surrounding ingredients remain unknown to a text-only checker.
03 · Practical takeaway
How to use this result proportionately
Consider product type, where it is applied, and your own repeated response before acting on the match. A clinician can help distinguish cosmetic acne from other causes when symptoms continue.
If you compare products, change one routine variable at a time and use the label from the product currently in hand.
04 · Primary source
Comedogenicity and irritancy of commonly used ingredients in skin care products
Journal of the Society of Cosmetic Chemists, 40, 321-333 · Primary rabbit-ear screening study
Ingredients were generally tested at 10% in a rabbit-ear model. The paper calls the assay extremely sensitive, reports source and vehicle effects, and says the survey is not definitive or a substitute for finished-formula and human evidence.
Open source record ↗