Daily Sun Serum SPF 30 Mineral Sunscreen vs Super Fluid Daily Uv Defense Spf Sunscreen: which is safer?

Daily Sun Serum SPF 30 Mineral Sunscreen is our pick, better on PFAS and on the overall hazard picture.

Our pick

Derma E

Daily Sun Serum SPF 30 Mineral Sunscreen

PFAS grade

Excellent 100/100

Overall grade

Excellent 92/100

Verdict

Buy

Hazard flags

⚑ 2

Material

Mineral sunscreen, zinc oxide base

Confidence

88%

Possible1,4-dioxane (non-intentional contaminant from surfactants/emulsifiers)

PossibleFragrance allergens (if fragrance is present)

KIEHL'S Super Fluid Daily Uv Defense Spf Sunscreen

Kiehl's

Super Fluid Daily Uv Defense Spf Sunscreen

PFAS grade

Excellent 75/100

Overall grade

Good 57/100

Verdict

Buy

Hazard flags

⚑ 3

Material

Aqueous sunscreen lotion with mineral and organic UV filters

Confidence

72%

PossibleOrganic UV filter photoinstability

PossibleContact sensitization or irritation from fragrance or emulsifiers

ReportedWater contamination from reef-toxic UV filters

Where these two actually differ

  • We flag 1,4-dioxane (non-intentional contaminant from surfactants/emulsifiers) and Fragrance allergens (if fragrance is present) on the Derma E and not on the Kiehl's.
  • We flag Organic UV filter photoinstability, Contact sensitization or irritation from fragrance or emulsifiers and Water contamination from reef-toxic UV filters on the Kiehl's and not on the Derma E.
  • The Derma E is Mineral sunscreen, zinc oxide base where the Kiehl's is Aqueous sunscreen lotion with mineral and organic UV filters, 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 Derma E 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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