Basic Full Period Brief 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 Full Period Brief
PFAS grade
Excellent 90/100
Overall grade
Excellent 86/100
Verdict
Buy
Hazard flags
⚑ 1
Material
Organic cotton, lycra blend with waterproof gusset treatment
Confidence
45%
PossibleWaterproof gusset treatment (unspecified chemistry)
Our pick
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 Waterproof gusset treatment (unspecified chemistry) 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, lycra blend with waterproof gusset treatment 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 45% 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