Super Hipster vs Women's Dear Kate Period Panties – Nellie Brief Full: which is safer?
Super Hipster is the clear pick. Women's Dear Kate Period Panties – Nellie Brief Full carries a failing PFAS grade, and we never recommend buying a failing product.
Our pick
Aisle
Super Hipster
PFAS grade
Overall grade
Verdict
Hazard flags
Material
Confidence
PossibleAzo dyes and synthetic dyes
PossibleAllergic contact dermatitis from dyes or finishes
Dear Kate
Women's Dear Kate Period Panties – Nellie Brief Full
PFAS grade
Overall grade
Verdict
Hazard flags
Material
Confidence
PossibleTeflon-type coating/Teflon-family coating fume risk (from waterproof backing)
PossibleCoating degradation and microfiber shedding
PossibleSkin irritation from undisclosed treatment chemicals
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 PTFE/fluoropolymer fume risk (from waterproof backing), Coating degradation and microfiber shedding and Skin irritation from undisclosed treatment chemicals on the Dear Kate and not on the Aisle.
- The Aisle is Organic cotton, wood pulp fiber where the Dear Kate is Organic cotton with waterproof/absorbent backing, unspecified treatment, 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 Aisle is the one to buy.
- We are less certain about the Dear Kate grade, at 45% confidence against 72%, because it discloses less.
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