Memoi Women's Love Luna First Shortie Period Brief Panty 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.

Memoi Women's Love Luna First Shortie Period Brief Panty

Love Luna

Memoi Women's Love Luna First Shortie Period Brief Panty

PFAS grade

Good 70/100

Overall grade

Good 54/100

Verdict

Buy

Hazard flags

⚑ 4

Material

organic cotton, modal blend with gusset absorbent layers

Confidence

78%

PossibleAzo dyes in synthetic components or absorbent layers

PossibleFormaldehyde in textile resins or finishing treatments

PossibleAntimony in polyester 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 Azo dyes in synthetic components or absorbent layers, Formaldehyde in textile resins or finishing treatments, Antimony in polyester synthetic components and Microplastic shedding from synthetic backing or elastic 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 organic cotton, modal blend with gusset absorbent layers 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