Basic Mid-Rise Period Brief vs Leakproof Seamless Brief: which is safer?
Modibodi Basic Mid-Rise Period Brief is the clear pick. Saalt Leakproof Seamless Brief carries a failing PFAS grade, and we never recommend buying a failing product.
Our pick
Modibodi
Basic Mid-Rise Period Brief
PFAS grade
Overall grade
Verdict
Hazard flags
Material
Confidence
PossibleWater-resistant coating degradation
PossibleMicrobial growth and odor with improper care
Saalt
Leakproof Seamless Brief
PFAS grade
Overall grade
Verdict
Hazard flags
Material
Confidence
LikelyFluorocarbon coating (PFAS family)
PossibleAzo dyes in nylon-polyester blend
PossibleAntimicrobial finish (silver, triclosan, or quaternary ammonium)
Where these two actually differ
- We flag Water-resistant coating degradation and Microbial growth and odor with improper care on the Modibodi and not on the Saalt.
- We flag Fluorocarbon coating (PFAS family), Azo dyes in nylon-polyester blend, Antimicrobial finish (silver, triclosan, or quaternary ammonium) and Coating degradation and microparticle shedding on the Saalt and not on the Modibodi.
- The Modibodi is organic cotton blend with water-resistant coating where the Saalt is Nylon/polyester blend with leak-proof coating (composition unspecified), 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 Modibodi is the one to buy.
- We are less certain about the Saalt grade, at 42% confidence against 85%, because it discloses less.
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