bareMinerals Original Prime Time Foundation Primer vs Studio Radiance Moisturizing + Illuminating Silky Primer: which is safer?
bareMinerals Original Prime Time Foundation Primer is the clear pick. MAC Studio Radiance Moisturizing + Illuminating Silky Primer carries a failing PFAS grade, and we never recommend buying a failing product.
Our pick
Bare Minerals
bareMinerals Original Prime Time Foundation Primer
PFAS grade
Overall grade
Verdict
Hazard flags
Material
Confidence
PossibleFragrance allergen sensitization
MAC
Studio Radiance Moisturizing + Illuminating Silky Primer
PFAS grade
Overall grade
Verdict
Hazard flags
Material
Confidence
PossibleFragrance allergens (undisclosed components)
Possible1,4-dioxane (manufacturing contaminant)
PossibleSilicone occlusion and skin barrier effects (long-term use)
Where these two actually differ
- We flag Fragrance allergen sensitization on the Bare Minerals and not on the MAC.
- We flag Fragrance allergens (undisclosed components), 1,4-dioxane (manufacturing contaminant) and Silicone occlusion and skin barrier effects (long-term use) on the MAC and not on the Bare Minerals.
- The Bare Minerals is mineral powder, silicones, mica where the MAC is silicone, glycerin, water, emollients, which is most of the difference in these two grades.
- The gap is 35 points, wide enough that this is not a close call, and the Bare Minerals is the one to buy.
- We are less certain about the MAC grade, at 42% confidence against 72%, 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 →
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