Chlorine Free Maxi Pads vs Kotex Ultra Thin Pads: which is safer?
Seventh Generation Chlorine Free Maxi Pads is the clear pick. U by Kotex Kotex Ultra Thin Pads carries a failing PFAS grade, and we never recommend buying a failing product.
Our pick
Seventh Generation
Chlorine Free Maxi Pads
PFAS grade
Excellent 100/100
Overall grade
Excellent 96/100
Verdict
Buy
Hazard flags
⚑ 1
Material
organic cotton, wood pulp
Confidence
78%
PossibleFragrance allergen content
U by Kotex
Kotex Ultra Thin Pads
PFAS grade
Good 60/100
Overall grade
Good 52/100
Verdict
Skip
Hazard flags
⚑ 2
Material
cellulose, adhesive, non-woven layers (typical pad construction)
Confidence
35%
PossibleFragrance compounds and sensitization
PossibleAdhesive migration or irritation
Where these two actually differ
- We flag Fragrance allergen content on the Seventh Generation and not on the U by Kotex.
- We flag Fragrance compounds and sensitization and Adhesive migration or irritation on the U by Kotex and not on the Seventh Generation.
- The Seventh Generation is organic cotton, wood pulp where the U by Kotex is cellulose, adhesive, non-woven layers (typical pad construction), which is most of the difference in these two grades.
- The gap is 40 points, wide enough that this is not a close call, and the Seventh Generation is the one to buy.
- We are less certain about the U by Kotex grade, at 35% 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 →
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