Organic Pads vs Teens Cotton Bikini Leakproof Period Underwear: which is safer?

Natracare Organic Pads is the clear pick. Thinx Teens Cotton Bikini Leakproof Period Underwear carries a failing PFAS grade, and we never recommend buying a failing product.

Our pick

Natracare Organic Pads

Natracare

Organic Pads

PFAS grade

Excellent 100/100

Overall grade

Excellent 92/100

Verdict

Buy

Hazard flags

⚑ 2

Material

not stated

Confidence

100%

PossibleFragrance allergens (if scented variant)

PossibleBacterial overgrowth from prolonged wear

Thinx Teens Cotton Bikini Leakproof Period Underwear

Thinx

Teens Cotton Bikini Leakproof Period Underwear

PFAS grade

Poor 25/100

Overall grade

Bad 7/100

Verdict

Skip

Hazard flags

⚑ 3

Material

cotton with proprietary moisture-wicking/leakproof coating

Confidence

35%

PossibleProprietary coating leachables (non-PFAS)

PossibleCoating degradation and microplastic risk

ReportedSkin irritation and allergic reaction to coating or finishes

Where these two actually differ

  • We flag Fragrance allergens (if scented variant) and Bacterial overgrowth from prolonged wear on the Natracare and not on the Thinx.
  • We flag Proprietary coating leachables (non-PFAS), Coating degradation and microplastic risk and Skin irritation and allergic reaction to coating or finishes on the Thinx and not on the Natracare.
  • The gap is 75 points, wide enough that this is not a close call, and the Natracare is the one to buy.
  • We are less certain about the Thinx grade, at 35% confidence against 100%, 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 →

More period care, see the full ranking