Antiperspirant Driclor · Deodorant
Certain Dri Solid
Lower concern; typical antiperspirant with no PFAS triggers.
Certain Dri Solid uses conventional antiperspirant actives without known PFAS chemistry. No waterproofing or fluorinated coatings typical for this product type; brand discloses nothing about PFAS.
Shop Antiperspirant Driclor on Amazon →Material
Aluminum chlorohydrate or zirconium salt active; wax/silicone base
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
Certain Dri Solid uses aluminum chlorohydrate as its active antiperspirant ingredient, a salt that works by forming plugs in sweat ducts. The base is typically wax and silicone to create the solid stick form. Aluminum chlorohydrate has been used in antiperspirants for decades and is recognized as safe by the FDA at concentrations under 25% (this product is within standard range). The solid formulation minimizes preservative load compared to liquids.
The brand's record and disclosure
Driclor is a well-established antiperspirant brand owned by Stiefel Laboratories. The brand does not publish detailed ingredient sourcing or allergen statements beyond standard labeling. No significant recalls, contamination incidents, or safety controversies are on public record for Certain Dri Solid. The brand takes a silent stance on PFAS, which is typical for the antiperspirant category; no independent testing has flagged this product for PFAS.
How it compares in its category
Certain Dri Solid is a mid-tier antiperspirant with aluminum chlorohydrate, standard in potency compared to prescription-strength options (which use higher aluminum or zirconium) and stronger than aluminum-free alternatives. It lacks fragrance, dyes, or visible additives, making it lower-risk for fragrance sensitization and contact dermatitis than scented or colored sticks. The solid format has fewer preservative requirements than gels or roll-ons.
If you buy it
Apply to clean, dry skin (damp skin reduces efficacy). Do not use on broken or freshly shaved skin; wait a few hours post-shave to minimize irritation. Replace when the stick is exhausted (typically 2-3 months of daily use). If irritation, rash, or burning occurs, discontinue and switch to aluminum-free or gentler formulations. Store in a cool, dry place to prevent softening.
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.”
Aluminum systemic absorption
Aluminum chlorohydrate is absorbed minimally through intact skin when applied as directed, but prolonged or heavy use may raise localized dermal aluminum levels. No causal link to Alzheimer's or systemic toxicity is established in scientific consensus, though this remains an area of ongoing epidemiological study.
Contact dermatitis and irritation
Aluminum salts can cause skin irritation, redness, or allergic contact dermatitis in sensitive individuals, especially on freshly shaved or broken skin. This is the most common adverse event reported for aluminum antiperspirants and is reversible upon discontinuation.
Fragrance allergens
Certain Dri Solid is unscented, eliminating fragrance-related allergens and sensitization risk. This is a comparative advantage over scented antiperspirant sticks.
Heavy metals in pigments or additives
The product contains no added dyes or pigments reported in labeling. No lead, cadmium, or arsenic contamination has been documented in this brand or product line.
Formaldehyde-releasing preservatives
Solid stick formulations typically avoid liquid preservatives; no formaldehyde releasers or quaternium compounds are listed or implied in standard Driclor formulations. Specific ingredient transparency is limited, so full confirmation is not publicly verifiable.
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.
Safer alternatives in Deodorant
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⚠Risky category by default
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⚠Risky category by default
Tom's of Maine
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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.