Classic Full Period Briefs 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
Classic Full Period Briefs
PFAS grade
Excellent 90/100
Overall grade
Excellent 82/100
Verdict
Buy
Hazard flags
⚑ 2
Material
Organic cotton blend with unspecified waterproof/absorbent coating
Confidence
45%
PossibleUnidentified waterproof coating chemistry
PossibleCoating degradation and microparticle release
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 Unidentified waterproof coating chemistry and Coating degradation and microparticle release 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 blend with unspecified waterproof/absorbent coating 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