U by Kotex Security Maxi Pads vs Chlorine Free Maxi Pads: which is safer?

Seventh Generation Chlorine Free Maxi Pads is our pick: better on PFAS and on the overall hazard picture.

U by Kotex Security Maxi Pads

Kotex Security

U by Kotex Security Maxi Pads

PFAS grade

Good 70/100

Overall grade

Good 62/100

Verdict

Buy

Hazard flags

⚑ 2

Material

absorbent core, nonwoven layers, adhesive

Confidence

62%

PossibleFragrance allergens (optional, not all variants)

PossibleAdhesive skin contact reaction

Our pick

Seventh Generation Chlorine Free Maxi Pads

Seventh Generation

Chlorine Free Maxi Pads

PFAS grade

Excellent 100/100

Overall grade

Excellent 96/100

Verdict

Buy

Hazard flags

⚑ 1

Material

organic cotton, wood pulp

Confidence

78%

PossibleFragrance allergen content

Where these two actually differ

  • We flag Fragrance allergens (optional, not all variants) and Adhesive skin contact reaction on the Kotex Security and not on the Seventh Generation.
  • We flag Fragrance allergen content on the Seventh Generation and not on the Kotex Security.
  • The Kotex Security is absorbent core, nonwoven layers, adhesive where the Seventh Generation is organic cotton, wood pulp, 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 Seventh Generation 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 pads: see the full ranking