Signature Scent Duo Salt & Stone
Lower concern cosmetic; no PFAS triggers identified, but no disclosure.
Salt & Stone fragrances use mineral salt and botanical bases without apparent Teflon-family coating coatings or water-resistant treatments. Brand does not disclose PFAS status, but product category and composition suggest minimal PFAS risk.
We flunk more products than we pass. This one earned its grade. How we grade
Material
fragrance blend, mineral salt, plant extracts
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
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What Signature Scent Duo Salt & Stone is made of, ingredients and materials
Salt & Stone Signature Scent Duo is a fragrance blend built on mineral salt and plant-derived extracts, without synthetic polymers or heavy metal carriers typical of conventional fragrances. The mineral salt base is inert and non-absorbable through intact skin, reducing systemic exposure risk. Plant extracts introduce natural volatiles and antioxidants, though their purity and pesticide residue depend on sourcing standards not publicly disclosed by the brand. The absence of reported synthetic azo dyes or talc in the formulation limits two common cosmetic hazards.
What’s concerning
Category baseline
The starting point for this type of product, before anything specific to this product is counted.
No PFAS disclosure
No public statement from the brand about PFAS in this product.
Fragrance allergens (undisclosed)
Salt & Stone does not publish a fragrance allergen declaration or list INCIs for the scent blend. Plant-derived volatiles can trigger contact dermatitis or respiratory sensitization in 1-3% of users, particularly those with existing fragrance sensitivity.
Skin irritation from undiluted fragrance concentration
Fragrance concentrations in personal scent products typically range 3-5% volatile oils. The mineral salt base does not buffer fragrance intensity; direct skin application without dilution poses mild-to-moderate irritation risk for sensitive skin types.
What’s reassuring
Base material not linked to PFAS
The main material recorded for this product is not one associated with PFAS.
1,4-dioxane contamination in plant extracts
No testing data or recall history on record for this product. 1,4-dioxane can form as a byproduct in botanical extraction, but the brand's extract sourcing standards are not disclosed, making assessment impossible.
Heavy metals
Salt deposits can concentrate trace cadmium, arsenic, and lead depending on geological source. No third-party heavy metal testing results are published by the brand; cosmetic-grade mineral salts are generally low-risk if sourced from food-grade suppliers, but verification is absent here.
Source, FDA ↗Formaldehyde / VOCs
The brand does not disclose preservative chemistry. If present, formaldehyde-releasing agents (DMDM hydantoin, imidazolidinyl urea) are used in up to 10% of cosmetics; no evidence this product contains them, but absence of preservative declaration prevents confirmation.
Source, ATSDR ↗The full breakdown
The brand's record and disclosure
Salt & Stone does not publicly disclose full ingredient lists or third-party safety testing results on its website or product packaging, limiting independent verification. The brand has not issued a formal statement on fragrance allergen thresholds or 1,4-dioxane contamination protocols, which are standard in transparent beauty brands. No recalls or regulatory actions against this product or brand have been identified in public records. The PFAS safety score of 75/100 reflects likely absence of intentional fluorinated compounds, though the brand's silence on raw material sourcing leaves some uncertainty.
How it compares in its category
Mineral-salt-based fragrances are a niche subcategory with lower contamination risk than conventional eau de toilette or synthetic fragrance oils, which often carry undisclosed allergens and carrier solvents. Most mainstream scent products lack the transparency of this formulation's stated plant-extract base. However, many competitors (notably Maison Margiela, Byredo) publish third-party allergy testing and fragrance allergen declarations that Salt & Stone does not. The mineral approach avoids microplastic vectors seen in some glitter-inclusive fragrances.
If you buy it
Apply to dry skin after sun protection products; fragrance oils can increase photosensitivity if worn in direct sun. Perform a 48-hour patch test on inner arm first, as undisclosed plant extracts may trigger contact dermatitis in sensitive individuals. Store away from heat and light to preserve volatile compounds and prevent oxidative degradation of plant extracts. Discontinue use if redness, itching, or respiratory irritation occurs; fragrance sensitivity varies widely and no brand ingredient list guarantees individual safety.
What we don’t know
- Basis
- Model estimate, 72% confidence, not a lab result
- Lab test
- None on record for this exact product
- Brand statement
- Salt & Stone has made none
Formulations change between production runs, so check the current label. How we grade.
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