Arm & Hammer · Deodorant
Arm & Hammer Ultra Max Antiperspirant Deodorant
Lower PFAS concern; typical antiperspirant with no known PFAS triggers, but no brand transparency.
Arm & Hammer Ultra Max is a conventional aluminum-based antiperspirant without obvious PFAS hotspots (no waterproof claims, nonstick coatings, or stain resistance). The brand provides no PFAS disclosure or testing data. No third-party certifications address PFAS.
Shop Arm & Hammer on Amazon →Material
Aluminum compound, wax, talc, starch
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
Why this grade
Category baseline
cosmetics is a category where PFAS exposure is more common.
No PFAS disclosure
No public statement about PFAS in this product.
Safe base material
Made from a material with no inherent PFAS use (ceramic, mineral, or natural fiber).
The full breakdown
What it's made of and why it matters
Arm & Hammer Ultra Max uses aluminum compounds as the active antiperspirant agent, combined with talc, wax, and starch as bulking and texture agents. Aluminum salts are the industry standard for sweat blocking and have decades of regulatory approval at these concentrations. Talc presence requires attention due to historical contamination risks, though talc-based deodorants remain legal and widely sold; the product formula does not appear to use bismuth or other metals known to accumulate in skin.
The brand's record and disclosure
Arm & Hammer has not published detailed ingredient sourcing transparency or third-party safety testing results for this deodorant line. The brand has faced no major recalls or regulatory actions tied to this product. Like most mainstream antiperspirant manufacturers, Arm & Hammer does not publicly disclose heavy metal testing or talc contamination screening, which is typical for the category but falls short of premium or natural-focused competitors.
How it compares in its category
This is a conventional aluminum-based antiperspirant, placing it in the mainstream tier alongside Dove, Secret, and Degree. It offers no talc-free option under this specific product line, whereas some competitors now market talc-free variants. The formula is simpler and less likely to contain fragrance allergens than scented variants, though Ultra Max does include fragrance; it sits mid-range for ingredient transparency compared to premium or clean-label deodorant brands.
If you buy it
Apply to clean, dry underarms and allow to dry before dressing to minimize irritation and staining. If you have sensitive skin or a family history of talc-related concerns, consider a talc-free alternative or patch-test first. Replace when empty; do not expose to direct heat or sunlight as the wax base may degrade. Discontinue use if rash, irritation, or discoloration develops; this is not a medical-grade antiperspirant and should not replace clinical treatment for hyperhidrosis.
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.”
Talc contamination and asbestos risk
Talc ore can naturally contain asbestos; Arm & Hammer does not publicly disclose talc source or contamination testing for this product. Underarm application poses lower inhalation risk than powder form, but long-term skin contact remains a concern for some users. No recalls or adverse reports specific to this product are on record.
Aluminum systemic absorption
Aluminum antiperspirants are absorbed through skin in small amounts; regulatory agencies (FDA, EFSA) consider typical use safe, but no formal brand safety studies are publicly available for this specific formulation. Long-term cumulative exposure remains a topic of scientific debate, though causation to systemic harm is not established.
Fragrance allergen and sensitizer content
Ultra Max includes fragrance compounds which can trigger contact dermatitis or respiratory sensitivity in susceptible individuals. Arm & Hammer does not disclose specific fragrance allergens (e.g., limonene, linalool) on packaging, standard practice but limiting for allergy-prone users.
Skin irritation from wax and starch base
Wax and starch can trap moisture and bacteria in the underarm microbiome, leading to folliculitis or odor overgrowth in some users, especially in warm climates or with frequent reapplication. No product-specific adverse event reports are documented.
Heavy metals in talc or colorants
No lead, cadmium, or other heavy metal contamination has been reported for this product or talc-based deodorants in general, but independent testing by the brand or third parties is not publicly disclosed.
What we don’t know
This grade is a model-based estimate from public materials, coatings, and brand disclosure at 72% 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.
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✓Verified PFAS-free by a third party
More deodorant 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.