Corpus Christi · Deodorant
Salt & Stone Deodorant
Lower-concern category; deodorant powder unlikely to contain PFAS unless undisclosed treatment applied.
Salt & Stone markets this as a natural mineral deodorant, which typically uses talc, baking soda, or other inert powders, materials with low inherent PFAS risk. The brand does not disclose PFAS testing or make PFAS-free claims. No public lab data or third-party verification exists for this product.
Shop Corpus Christi on Amazon →Material
mineral-based powder formulation (typical for natural deodorant)
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
Salt & Stone's mineral-based powder formulation typically relies on naturally occurring minerals like magnesium oxide, zinc oxide, or clay as the active absorbent, rather than chemical antiperspirants. Powder deodorants avoid aluminum compounds and synthetic polymers that require curing or heat-setting, which reduces exposure to volatile organic compounds (VOCs) and synthetic binders. The 'salt and stone' naming convention reflects reliance on mineral salts and mineral powders, both of which are chemically stable at room temperature and unlikely to leach or degrade during normal storage and use.
The brand's record and disclosure
Corpus Christi (the parent brand) maintains minimal public disclosure regarding ingredient sourcing, manufacturing certifications, or heavy-metal testing results. No recalls or documented safety incidents for this product line have been reported in public databases. The brand's silence on PFAS and third-party certifications (e.g., EWG, NSF) leaves verification gaps, but absence of reported contamination does not indicate presence of undisclosed hazards. Ingredient lists appear consistent with claimed 'natural' positioning, though independent verification is unavailable.
How it compares in its category
Mineral powder deodorants occupy a lower-risk tier compared to aerosol antiperspirants, gel formulations, or spray deodorants, which often contain propellants, emulsifiers, and synthetic fragrance compounds. This product avoids the talc-contamination concern that has affected some natural deodorant brands, as talc is not listed in standard formulations. Compared to baking-soda-based deodorants (which risk skin irritation in sensitive users), mineral powders are gentler and chemically inert, making this category a practical middle ground between synthetic and ultra-minimal options.
If you buy it
Store powder deodorants in a cool, dry place away from humidity to prevent caking and microbial growth, which is more likely in damp bathroom environments than in the product itself. Replace every 6-12 months or when clumping or odor persistence occurs. Test on a small area first if you have sensitive skin, as mineral powders can occasionally irritate broken skin or areas with recent shaving. Avoid inhaling powder directly during application; use damp fingers or a brush applicator to minimize airborne particulates.
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.”
Heavy metals in mineral pigments or mineral powders
Magnesium oxide, zinc oxide, and clay minerals are generally food-grade and cosmetic-grade with low bioavailability through skin contact. No reports of lead, cadmium, or arsenic contamination in this product or brand; mineral deodorants typically have lower contamination risk than talc-based alternatives.
Formaldehyde releasers or preservatives
Powder formulations require minimal preservatives since water activity is low; formaldehyde-releasing agents are unnecessary in anhydrous (water-free) products. No evidence this product contains formaldehyde donors or imidazolidinyl urea.
Fragrance allergens or undisclosed fragrance compounds
If this product includes fragrance, it may contain synthetic or essential-oil derived allergens not individually disclosed on the label. Mineral deodorants often add fragrance to mask earth tones; review ingredient list for 'fragrance' or 'parfum' and patch-test if prone to contact dermatitis.
Microbial growth or contamination in powder form
Dry powder formulations are inhospitable to bacteria and mold growth compared to creams or gels. Risk arises only from improper storage (water exposure) or contaminated applicator contact; the product itself poses negligible microbiological hazard.
Skin irritation from baking soda or mineral excipients
If baking soda is included as a pH buffer, it can irritate sensitive or freshly shaved skin in some users. Pure mineral powders like magnesium oxide are gentler but may still cause localized reactions in atopic individuals; patch testing recommended for sensitive skin types.
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
Tom's of Maine
Deodorant
mineral-based, baking soda formulation
Lower concern, mineral-based formula with public PFAS-free positioning, though no independent third-party verification.
⚠Risky category by default
Tom's of Maine
Most-Loved Deodorant Bundle
mineral-based and plant-derived actives; stick formulation
Lower-concern deodorant; mineral-based formula with PFAS-free claim aligns with brand ethos, but no third-party verification found.
⚠Risky category by default
Tom's of Maine
Antiperspirant Deodorant
mineral-based active ingredients, plant-derived botanicals, no synthetic water-repellent coatings
Lower PFAS concern, mineral-based formula with MADE SAFE cert; antiperspirant category has minimal waterproof-coating risk.
✓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.