Period Underwear for Women - Cotton Menstrual Panties, Leak Protection (S-XXL) vs Rubylove First Period Kit +teen Period Underwear: which is safer?

Rubylove First Period Kit +teen Period Underwear is the clear pick. Rael Period Underwear for Women - Cotton Menstrual Panties, Leak Protection (S-XXL) carries a failing PFAS grade, and we never recommend buying a failing product.

Rael Period Underwear for Women - Cotton Menstrual Panties, Leak Protection (S-XXL)

Rael

Period Underwear for Women - Cotton Menstrual Panties, Leak Protection (S-XXL)

PFAS grade

Poor 25/100

Overall grade

Bad 9/100

Verdict

Skip

Hazard flags

⚑ 4

Material

Cotton blend with waterproof backing layer, composition unspecified

Confidence

45%

PossiblePFAS in waterproof backing layer

PossibleAzo dyes and synthetic colorants in cotton blend

PossiblePolyurethane or polyester backing degradation and microplastics

Our pick

Rubylove First Period Kit +teen Period Underwear

Ruby Love

Rubylove First Period Kit +teen Period Underwear

PFAS grade

Excellent 100/100

Overall grade

Excellent 92/100

Verdict

Buy

Hazard flags

⚑ 2

Material

organic cotton, waterproof backing layer

Confidence

82%

PossibleCoating degradation and microparticle shedding

PossibleBacterial or fungal growth if improperly stored

Where these two actually differ

  • We flag PFAS in waterproof backing layer, Azo dyes and synthetic colorants in cotton blend, Polyurethane or polyester backing degradation and microplastics and Bacterial or fungal growth if inadequately dried or maintained on the Rael and not on the Ruby Love.
  • We flag Coating degradation and microparticle shedding and Bacterial or fungal growth if improperly stored on the Ruby Love and not on the Rael.
  • The Rael is Cotton blend with waterproof backing layer, composition unspecified where the Ruby Love is organic cotton, waterproof backing layer, 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 Ruby Love is the one to buy.
  • We are less certain about the Rael grade, at 45% confidence against 82%, 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