bareMinerals Original Prime Time Foundation Primer vs Prep + Prime Skin: which is safer?

bareMinerals Original Prime Time Foundation Primer is our pick, better on PFAS and on the overall hazard picture.

Our pick

bareMinerals Original Prime Time Foundation Primer

Bare Minerals

bareMinerals Original Prime Time Foundation Primer

PFAS grade

Excellent 100/100

Overall grade

Excellent 96/100

Verdict

Buy

Hazard flags

⚑ 1

Material

mineral powder, silicones, mica

Confidence

72%

PossibleFragrance allergen sensitization

MAC Prep + Prime Skin

MAC

Prep + Prime Skin

PFAS grade

Excellent 75/100

Overall grade

Good 67/100

Verdict

Buy

Hazard flags

⚑ 2

Material

water, silicones, polymers, preservatives

Confidence

72%

PossiblePreservative allergens and sensitizers

PossibleSilicone occlusion and skin barrier effects

Where these two actually differ

  • We flag Fragrance allergen sensitization on the Bare Minerals and not on the MAC.
  • We flag Preservative allergens and sensitizers and Silicone occlusion and skin barrier effects on the MAC and not on the Bare Minerals.
  • The Bare Minerals is mineral powder, silicones, mica where the MAC is water, silicones, polymers, preservatives, which is most of the difference in these two grades.
  • The gap is 25 points, wide enough that this is not a close call, and the Bare Minerals is the one to buy.

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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