Flux Abondant Period Proof Heavy Flow High Waist Brief Black - S / Black vs Rubylove First Period Kit +teen Period Underwear: which is safer?
Rubylove First Period Kit +teen Period Underwear is the clear pick. Chantelle - Flux Abondant Period Proof Heavy Flow High Waist Brief Black - S / Black carries a failing PFAS grade, and we never recommend buying a failing product.
Chantelle
Flux Abondant Period Proof Heavy Flow High Waist Brief Black - S / Black
PFAS grade
Overall grade
Verdict
Hazard flags
Material
Confidence
PossibleWater-repellent coating chemistry (non-PFAS component risk)
PossibleMicroplastic shedding from synthetic fibers
PossibleBacterial or fungal growth in moisture-barrier layer
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 Water-repellent coating chemistry (non-PFAS component risk), Microplastic shedding from synthetic fibers and Bacterial or fungal growth in moisture-barrier layer on the Chantelle 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 Chantelle.
- The Chantelle is Unspecified synthetic blend with moisture/fluid-resistant coating 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 Chantelle 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