Rubylove First Period Kit +teen Period Underwear vs For All Period Underwear Size M - New Women | Color: Red/Brown: which is safer?
Rubylove First Period Kit +teen Period Underwear is the clear pick. Thinx For All Period Underwear Size M - New Women | Color: Red/Brown carries a failing PFAS grade, and we never recommend buying a failing product.
Our pick
Ruby Love
Rubylove First Period Kit +teen Period Underwear
PFAS grade
Overall grade
Verdict
Hazard flags
Material
Confidence
PossibleCoating degradation and microparticle shedding
PossibleBacterial or fungal growth if improperly stored
Thinx
For All Period Underwear Size M - New Women | Color: Red/Brown
PFAS grade
Overall grade
Verdict
Hazard flags
Material
Confidence
ReportedProprietary water-resistant coating composition undisclosed
PossibleCoating degradation and microplastic generation over time
PossibleLeaching of coating components into skin or menstrual fluid during use
Where these two actually differ
- We flag Coating degradation and microparticle shedding and Bacterial or fungal growth if improperly stored on the Ruby Love and not on the Thinx.
- We flag Proprietary water-resistant coating composition undisclosed, Coating degradation and microplastic generation over time and Leaching of coating components into skin or menstrual fluid during use on the Thinx and not on the Ruby Love.
- The Ruby Love is organic cotton, waterproof backing layer where the Thinx is Cotton blend with proprietary water-resistant coating (unspecified), 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 Thinx grade, at 35% 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