100% Natural Nourishing Mascara, Black Brown vs In Extreme Dimension Lash Mascara: which is safer?
Burt's Bees 100% Natural Nourishing Mascara, Black Brown is the clear pick. MAC In Extreme Dimension Lash Mascara carries a failing PFAS grade, and we never recommend buying a failing product.
Our pick
Burt's Bees
100% Natural Nourishing Mascara, Black Brown
PFAS grade
Overall grade
Verdict
Hazard flags
Material
Confidence
PossibleFragrance allergens and undisclosed sensitizers
PossibleBacterial growth and contamination in wax formula
MAC
In Extreme Dimension Lash Mascara
PFAS grade
Overall grade
Verdict
Hazard flags
Material
Confidence
Possible1,4-dioxane (potential impurity in polymers)
PossibleFragrance allergens and undisclosed fragrance components
ReportedMicroorganism growth in liquid formula
Where these two actually differ
- We flag Fragrance allergens and undisclosed sensitizers and Bacterial growth and contamination in wax formula on the Burt's Bees and not on the MAC.
- We flag 1,4-dioxane (potential impurity in polymers), Fragrance allergens and undisclosed fragrance components, Microorganism growth in liquid formula and Formaldehyde releasers in preservatives on the MAC and not on the Burt's Bees.
- The Burt's Bees is Wax, pigments, natural oils (typical mascara base) where the MAC is liquid mascara with waterproof film-forming polymers, which is most of the difference in these two grades.
- The gap is 45 points, wide enough that this is not a close call, and the Burt's Bees is the one to buy.
- We are less certain about the MAC grade, at 45% confidence against 78%, because it discloses less.
Both products run through the same public rubric, which covers materials, coatings, brand disclosure, lab findings, and recalls, plus a beyond-PFAS hazard analysis. Grades are model-based estimates, not lab tests. How grades work →
More waterproof mascara, see the full ranking