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
Overall grade
Verdict
Hazard flags
Material
Confidence
Possible1,4-dioxane (non-intentional contaminant from surfactants/emulsifiers)
PossibleFragrance allergens (if fragrance is present)
Kiehl's
Super Fluid Daily Uv Defense Spf Sunscreen
PFAS grade
Overall grade
Verdict
Hazard flags
Material
Confidence
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 →
More sunscreen, see the full ranking