Women's Bikini Brief Period Panty vs Rubylove First Period Kit +teen Period Underwear: which is safer?

Rubylove First Period Kit +teen Period Underwear is the clear pick. Love Luna Women's Bikini Brief Period Panty carries a failing PFAS grade, and we never recommend buying a failing product.

Love Luna Women's Bikini Brief Period Panty

Love Luna

Women's Bikini Brief Period Panty

PFAS grade

Poor 25/100

Overall grade

Bad 0/100

Verdict

Skip

Hazard flags

⚑ 4

Material

absorbent fabric blend with unspecified waterproof coating

Confidence

35%

PossibleWaterproof coating leachables (non-PFAS component)

PossibleFormaldehyde resins in fabric finish

LikelyMicroplastic shedding from synthetic components

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

Where these two actually differ

  • We flag Waterproof coating leachables (non-PFAS component), Formaldehyde resins in fabric finish, Microplastic shedding from synthetic components and Bacterial or mold growth if moisture trapped on the Love Luna 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 Love Luna.
  • The Love Luna is absorbent fabric blend with unspecified waterproof 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 Love Luna grade, at 35% confidence against 82%, 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