Stayfree Ultra Thin · Period Pads
Stayfree Ultra Thin Pads Regular
Minimal public transparency on materials and PFAS risk.
Stayfree does not publicly disclose PFAS status or material composition details. Period pads may use plastic backings that could contain fluorochemicals, but no confirmed data exists for this product.
The better-graded swap
Seventh Generation
Seventh Generation Chlorine Free Maxi Pads
100/100 safety
Same rubric that flunked this product. The swap earned Excellent.
Still want this one anyway? Check the price on Amazon. We’d swap it.
Material
absorbent core, plastic backing (unspecified)
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
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What Stayfree Ultra Thin Pads Regular is made of, ingredients and materials
Stayfree Ultra Thin pads use an absorbent core (typically wood pulp and superabsorbent polymer) with a plastic backing layer. The core materials are standard across the menstrual-pad category and pose low acute hazard risk. The unspecified plastic backing is the primary material of concern, as composition details (whether polypropylene, polyethylene, or other polymers) directly affect leachable chemicals and degradation behavior during use. No public specification of adhesives, fragrance compounds, or surface treatments for this SKU is readily available.
What’s concerning
Category baseline
The starting point for this type of product, before anything specific to this product is counted.
No PFAS disclosure
No public statement from the brand about PFAS in this product.
Plastic backing composition and leachables
The unspecified plastic layer could release trace monomers or processing residues under body heat and moisture. No public testing or specification is available for this product; risk is assessed as low-to-possible based on typical pad construction, not confirmed data.
PFAS
PFAS compounds are graded separately (60/100); the brand has not disclosed whether the plastic backing is PFAS-treated for water or stain resistance. This is handled under the dedicated PFAS assessment.
Source, ATSDR ↗What’s reassuring
Adhesive compounds and irritation
Pad adhesives (typically acrylate-based) are not named by the brand. Dermatological irritation is uncommon with Stayfree products, and no recalls for adhesive-related reactions are on record; individual sensitivity remains possible but not reported as a pattern.
Fragrance or additive allergens
Stayfree Ultra Thin Regular does not list added fragrance on packaging. Unscented formulations carry minimal fragrance-allergen risk; if this product is fragrance-free as indicated, this hazard is not applicable.
Superabsorbent polymer (SAP) particles or microplastic shedding
SAP is a cross-linked polymer designed to remain in the pad matrix and is not approved for direct vaginal insertion. Intact pad use carries no documented risk of SAP particle release; risk only arises if the pad is torn or if absorbent material contacts mucous membranes.
The full breakdown
The brand's record and disclosure
Stayfree (owned by Edgewell Personal Care, a Energizer subsidiary) has not published detailed material safety data, ingredient lists, or PFAS-testing results for this product line. The brand maintains a silent stance on PFAS risk in period-care products, which is common across major manufacturers but limits independent verification. No significant safety recalls or adverse-event reports specific to Stayfree Ultra Thin Regular pads are on public record. The lack of transparency on plastic composition and chemical additives is typical for mass-market pad brands but reflects broader industry reluctance to disclose.
How it compares in its category
Stayfree Ultra Thin is a budget-mainstream product with material practices consistent with other conventional pad brands (Kotex, Always). Brands that publish ingredient lists or seek third-party certifications (such as some organic or non-woven alternatives) provide more transparency but are not necessarily lower-hazard. Stayfree's positioning on absorbency and thinness does not inherently alter chemical risk relative to competitors; the trade-off is speed-to-market over disclosure depth.
If you buy it
Store pads in a cool, dry place away from heat and direct sunlight to minimize plastic degradation and volatilization of any residual solvents in adhesives. Replace the pad according to flow and personal comfort (typically 4-8 hours); do not leave in place longer than recommended to reduce bacterial growth and skin irritation risk. If you experience rash, irritation, or odor that persists after switching pads, consider testing an alternative material (cotton-blend or organic) to rule out contact sensitivity. Dispose of used pads as regular waste (not flushed); incineration or landfill is standard and does not pose household safety risk.
What we don’t know
- Basis
- Model estimate, 40% confidence, not a lab result
- Lab test
- None on record for this exact product
- Brand statement
- Stayfree Ultra Thin has made none
Formulations change between production runs, so check the current label. How we grade.
Better-graded alternatives in Period Pads
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- Fragrance allergen content
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- cellulose, cotton blend, absorbent core
- We found no PFAS statement from the brand
- Bleach residues and processing chemicals in cellulose
3 hazards checked on this product. See all of them.
Kotex Natural
10pack Kotex Natural Normal Sanitary Pads
- Cotton, wood pulp absorbent core, plastic backing
- We found no PFAS statement from the brand
- Pesticide residue
2 hazards checked on this product. See all of them.
More period pads grades
How we score, every product runs through the same public 0-100 rubric based on materials, coatings, brand disclosure, lab findings, and recalls. See the full methodology → Spotted a mistake? Report an error.