Super Hipster vs Women's FSA-Eligible Dear Kate Period Underwear Ada Brief Full: which is safer?
Super Hipster is our pick: better on PFAS and on the overall hazard picture.
Our pick
Aisle
Super Hipster
PFAS grade
Excellent 100/100
Overall grade
Excellent 92/100
Verdict
Buy
Hazard flags
⚑ 2
Material
Organic cotton, wood pulp fiber
Confidence
72%
PossibleAzo dyes and synthetic dyes
PossibleAllergic contact dermatitis from dyes or finishes
Dear Kate
Women's FSA-Eligible Dear Kate Period Underwear Ada Brief Full
PFAS grade
Good 70/100
Overall grade
Good 62/100
Verdict
Buy
Hazard flags
⚑ 2
Material
Organic cotton blend, absorbent core
Confidence
72%
PossibleFormaldehyde releasers in finishes or water-repellent coatings
PossibleAllergen potential (fragrance, residual pesticides, dyes)
Where these two actually differ
- We flag Azo dyes and synthetic dyes and Allergic contact dermatitis from dyes or finishes on the Aisle and not on the Dear Kate.
- We flag Formaldehyde releasers in finishes or water-repellent coatings and Allergen potential (fragrance, residual pesticides, dyes) on the Dear Kate and not on the Aisle.
- The Aisle is Organic cotton, wood pulp fiber where the Dear Kate is Organic cotton blend, absorbent core, which is most of the difference in these two grades.
- The gap is 30 points, wide enough that this is not a close call, and the Aisle is the one to buy.
Both products run through the same public rubric: 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 period underwear: see the full ranking