Seni · Incontinence Pads & Protection
Seni Lady Maximum
Unknown waterproofing method; no PFAS disclosure available.
Seni Lady Maximum is an incontinence pad with a waterproof backing of unspecified composition. Brand makes no PFAS claims or disclosures; backing treatment method unknown.
The safe swap
Tranquility
Tranquility Personal Care Pads 13.5" x 6.5", 96/Case
70/100 safety
Still want this one anyway? Check the price on Amazon. We’d swap it.
Material
absorbent core with waterproof backing layer
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
Why this grade
Waterproof / stain-resistant treatment
water-repellent coating treatments have historically used PFAS.
Category baseline
period care is a category where PFAS exposure is more common.
No PFAS disclosure
No public statement about PFAS in this product.
The full breakdown
What it's made of and why it matters
Seni Lady Maximum uses an absorbent core (likely cellulose and superabsorbent polymers) paired with a waterproof backing layer; the backing chemistry is the critical unknown. Waterproof layers in period products typically use either polyethylene (low risk) or fluorochemical coatings for enhanced repellency, and Seni has not disclosed which. The core materials themselves are standard for the category, but the backing determines whether PFAS or other leachables contact skin during extended wear.
The brand's record and disclosure
Seni is a German-owned brand (now part of Essity, a major hygiene company) with established presence in European markets, but has published no independent certifications (such as Oeko-Tex or similar) regarding chemical content or waterproofing methods. The brand has remained silent on PFAS despite industry-wide questions about menstrual product safety, particularly following 2021-2023 media scrutiny of 'forever chemicals' in period products. This silence is not evidence of use, but absence of transparency in a category where competitors have begun disclosure.
How it compares in its category
Seni Lady Maximum occupies the mid-to-premium segment for incontinence-style period protection (high-absorbency pads). Competitors like Kotex and Always have begun voluntary PFAS or chemical disclosures under consumer pressure; Seni's lack of public statements places it below these leaders on transparency, though this does not confirm higher chemical risk. No independent lab testing of Seni Lady Maximum for PFAS or phthalates has been published in accessible sources.
If you buy it
Change pads every 4-6 hours to minimize prolonged skin contact with any potential leachables from the backing layer. Store in a cool, dry place away from direct heat or sunlight, as warmth can accelerate breakdown of polymer layers. Do not flush; dispose in household waste. If you experience unexplained skin irritation, sensitivity, or allergic reactions, discontinue use and consider testing with a product that has published chemical disclosures. Request Seni's waterproofing method and material safety data by contacting customer service; brand responsiveness to transparency requests influences future purchase decisions.
Beyond PFAS: other things we checked
Established hazard classes for this product type, assessed from public information. These never change the PFAS grade; a Likely flag caps the Verdict at “Buy with care.”
Fluorochemical waterproofing agents (non-PFAS disclosure)
Seni does not disclose the chemistry of its waterproof backing. If fluorochemical-based (rather than polyethylene), potential for skin contact with volatile or leachable compounds; specific risk cannot be quantified without disclosure.
Superabsorbent polymer (SAP) integrity and leaching
Sodium polyacrylate, standard in period pads, is generally recognized as safe at skin-contact levels, but degradation over time or exposure to heat may alter particle size. No recalls or widespread complaints specific to Seni Lady Maximum have been documented.
Skin irritation and contact sensitization from backing materials
High-absorbency pads with waterproof backings can trap moisture and heat if changed infrequently, increasing risk of irritation independent of chemical toxicity. Seni's backing material identity is unknown, so comparison to safer alternatives (e.g., breathable, chlorine-free options) is not feasible.
Adhesive and elastic component chemicals
Period pads use adhesives and elastic components that may contain plasticizers or residual solvents. Seni does not publish safety data on these, and no independent analysis of Seni Lady Maximum adhesives has been published.
Disposal and environmental persistence
If the waterproof backing contains PFAS or other persistent polymers, disposal in household waste contributes to landfill and potential groundwater contamination; Seni provides no guidance on environmental impact of its waterproofing method.
What we don’t know
This grade is a model-based estimate from public materials, coatings, and brand disclosure at 45% confidence. It is not a lab result.
No independent PFAS lab test is on record for this exact product. A lab test could move the score in either direction.
The brand has not made a specific, verifiable PFAS-free statement, so part of this score reflects that missing disclosure rather than a confirmed material.
Formulations and coatings change between production runs. Always check the current label before buying.
Safer alternatives in Incontinence Pads & Protection
Tranquility
Personal Care Pads 13.5" x 6.5", 96/Case
Cellulose, wood pulp, absorbent core, adhesives
Lower PFAS concern. Typical absorbent pad with no known treatment.
⚠Risky category by default
Tranquility
Essential Booster Pads Heavy Absorbency, Long - 4-1/4 x 15 Inch (Case of 200)
cellulose/fluff pulp absorbent core with nonwoven layers
Lower concern. Core materials inherently PFAS-free, no evidence of water-repellent coating treatment.
⚠Risky category by default
Kotex
Absorbent Wrapped Liners
Cellulose-based absorbent core, wrapped nonwoven
Lower concern. No known PFAS use in standard absorbent liners.
⚠Risky category by default
More incontinence pads & protection 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.