Rubylove First Period Kit +teen Period Underwear vs Leakproof Cotton Brief Saalt: which is safer?

Rubylove First Period Kit +teen Period Underwear is the clear pick. Leakproof Cotton Brief Saalt carries a failing PFAS grade, and we never recommend buying a failing product.

Our pick

Rubylove First Period Kit +teen Period Underwear

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

Leakproof Cotton Brief Saalt

Saalt

Leakproof Cotton Brief Saalt

PFAS grade

Poor 25/100

Overall grade

Bad 9/100

Verdict

Skip

Hazard flags

⚑ 4

Material

organic cotton with waterproof barrier layer (unspecified)

Confidence

45%

PossibleWaterproof barrier composition (unknown polymer type)

PossibleSynthetic fiber degradation and microplastics

PossibleAdhesives or chemical treatments in seam construction

Where these two actually differ

  • We flag Coating degradation and microparticle shedding and Bacterial or fungal growth if improperly stored on the Ruby Love and not on the Saalt.
  • We flag Waterproof barrier composition (unknown polymer type), Synthetic fiber degradation and microplastics, Adhesives or chemical treatments in seam construction and Skin irritation from barrier material or residual processing chemicals on the Saalt and not on the Ruby Love.
  • The Ruby Love is organic cotton, waterproof backing layer where the Saalt is organic cotton with waterproof barrier layer (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 Ruby Love is the one to buy.
  • We are less certain about the Saalt 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