Crystal · Deodorant
Crystal Body Deodorant
Lower-concern product; mineral salt base aligns with PFAS-free claim, though no third-party verification.
Crystal Body Deodorant is a mineral-salt, based cosmetic with no typical PFAS-use triggers (no waterproof coating, nonstick, or stain resistance required). The brand makes a PFAS-free claim consistent with its ingredient profile.
Brand says: “Crystal deodorant is made from natural mineral salts and contains no PFAS”
Shop Crystal on Amazon →Material
mineral salts (potassium alum, sodium chloride)
Brand disclosure
Brand claims PFAS-free
Lab data
No public lab test
Why this grade
Category baseline
cosmetics is a category where PFAS exposure is more common.
Brand-stated PFAS-free
The brand states the product is PFAS-free (self-declared).
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
Crystal Body Deodorant is formulated primarily from potassium alum and sodium chloride, both naturally occurring mineral salts that have been used in personal care for decades. These salts work by creating an inhospitable environment for odor-causing bacteria rather than blocking sweat (unlike antiperspirants). The mineral salt base is chemically stable at skin temperature and does not require synthetic binders, fragrance carriers, or preservative systems that introduce common irritant or endocrine-active compounds.
The brand's record and disclosure
Crystal has marketed itself explicitly as PFAS-free and paraben-free since its product launch; the brand makes no claims of third-party certification (e.g., NSF, EWG verified), but the mineral salt composition inherently resists PFAS contamination used in water-repellent coatings. No significant product recalls or safety investigations specific to Crystal Body Deodorant are on public record. The brand's transparency is limited to ingredient labeling; independent testing of this product is sparse in scientific literature.
How it compares in its category
Mineral salt deodorants occupy a distinct low-chemical niche compared to conventional aerosol or gel deodorants, which often contain aluminum zirconium salts, silicones, and synthetic fragrance blends. Crystal's formulation avoids talc (linked to respiratory concerns in powder form) and avoids fragrance allergens or phthalate carriers. However, it performs differently than antiperspirants: users seeking sweat suppression rather than odor control may find this product insufficient.
If you buy it
Apply to clean, dry skin; avoid application immediately after showering if skin is damp, as the salt crystal works best on a dry surface. Store in a cool, dry location to prevent the mineral block from dissolving or crumbling. The stick will gradually wear down with use and may last 1-2 years depending on application frequency. Discontinue use if irritation develops, though irritation is rare with mineral salts in this formulation.
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.”
Fragrance allergens / fragrance additives
Crystal Body Deodorant is marketed in unscented or lightly scented varieties; the unscented version contains no added fragrance compounds. If scented versions use synthetic fragrance blends, ingredient disclosure is typically vague, but no documented allergic reactions specific to this brand are on record.
Heavy metals in mineral salts (alum source)
Potassium alum can carry trace contaminants (lead, cadmium) depending on mining and refining practices. Crystal does not disclose third-party testing for heavy metal content; regulatory limits in the US are not enforced for cosmetic-grade alum, though concentrations in deodorants are typically below concern thresholds given infrequent dermal absorption.
Skin irritation from salt contact
Mineral salts can cause dryness, stinging, or irritation in individuals with sensitive or damaged skin, particularly if applied to freshly shaved or abraded underarms. This is a direct chemical irritation risk, not a systemic toxicity concern, but occurs in a subset of users.
Talc contamination
Crystal Body Deodorant does not list talc as an ingredient in standard formulations; talc-free status is consistent with the mineral salt base and poses no inhalation or respiratory risk.
Antimicrobial or preservative residues
The mineral salt matrix is inherently antimicrobial and does not require added parabens, triclocarban, or other preservatives. No antimicrobial or preservative agents are disclosed in ingredient lists for this product.
What we don’t know
This grade is a model-based estimate from public materials, coatings, and brand disclosure at 82% 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.
Formulations and coatings change between production runs. Always check the current label before buying.
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.