Bikini Heavy Flow Women's 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.
The Period Company
Bikini Heavy Flow Women's
PFAS grade
Overall grade
Verdict
Hazard flags
Material
Confidence
PossibleAzo dyes and synthetic dye residues
PossibleFormaldehyde-releasing finishing resins
ReportedMicrofiber shedding from synthetic content
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 Azo dyes and synthetic dye residues, Formaldehyde-releasing finishing resins, Microfiber shedding from synthetic content and Bacterial growth and odor if worn continuously on the The Period Company 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 The Period Company.
- The The Period Company is Absorbent textiles, likely cotton or synthetic blend where the Ruby Love is organic cotton, waterproof backing layer, which is most of the difference in these two grades.
- The gap is 30 points, wide enough that this is not a close call, and the Ruby Love is the one to buy.
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