Basic Mid-Rise Brief Black vs Rubylove First Period Kit +teen Period Underwear: which is safer?
Rubylove First Period Kit +teen Period Underwear is our pick, better on PFAS and on the overall hazard picture.
Modibodi
Basic Mid-Rise Brief Black
PFAS grade
Overall grade
Verdict
Hazard flags
Material
Confidence
PossibleWaterproof lining degradation and leachables
PossibleBacterial or fungal growth on lining if stored wet
ReportedPFAS in waterproof lining (veracity of brand claim)
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
Where these two actually differ
- We flag Waterproof lining degradation and leachables, Bacterial or fungal growth on lining if stored wet and PFAS in waterproof lining (veracity of brand claim) on the Modibodi 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 Modibodi.
- The Modibodi is Organic cotton with waterproof leak-proof lining where the Ruby Love is organic cotton, waterproof backing layer, which is most of the difference in these two grades.
- We are less certain about the Modibodi grade, at 35% confidence against 82%, 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 underwear, see the full ranking