Chlorine Free Maxi Pads vs Ultra Thin Overnight Pads with Wings: which is safer?
Seventh Generation Chlorine Free Maxi Pads is the clear pick. Stayfree Ultra Thin Overnight Pads with Wings 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
Stayfree
Ultra Thin Overnight Pads with Wings
PFAS grade
Poor 25/100
Overall grade
Bad 17/100
Verdict
Skip
Hazard flags
⚑ 2
Material
nonwoven polypropylene, absorbent core, waterproof backing layer (unspecified composition)
Confidence
45%
PossiblePFAS in waterproof backing layer
PossibleAdhesive and fragrance allergens
Where these two actually differ
- We flag Fragrance allergen content on the Seventh Generation and not on the Stayfree.
- We flag PFAS in waterproof backing layer and Adhesive and fragrance allergens on the Stayfree and not on the Seventh Generation.
- The Seventh Generation is organic cotton, wood pulp where the Stayfree is nonwoven polypropylene, absorbent core, waterproof backing layer (unspecified composition), which is most of the difference in these two grades.
- The gap is 75 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 Stayfree grade, at 45% 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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