Roz Salt Scalp Scrub vs Natural Shampoo: which is safer?
Roz Salt Scalp Scrub is our pick: better on PFAS and on the overall hazard picture.
Our pick
Credo Beauty
Roz Salt Scalp Scrub
PFAS grade
Overall grade
Verdict
Hazard flags
Material
Confidence
PossibleFragrance allergens or undisclosed fragrance components
ReportedMechanical irritation from crystal size and shape
Puracy
Natural Shampoo
PFAS grade
Overall grade
Verdict
Hazard flags
Material
Confidence
Possible1,4-dioxane (contaminant in ethoxylated surfactants)
PossibleFragrance allergens and sensitizers
PossibleFormaldehyde releasers in preservatives
Where these two actually differ
- We flag Fragrance allergens or undisclosed fragrance components and Mechanical irritation from crystal size and shape on the Credo Beauty and not on the Puracy.
- We flag 1,4-dioxane (contaminant in ethoxylated surfactants), Fragrance allergens and sensitizers and Formaldehyde releasers in preservatives on the Puracy and not on the Credo Beauty.
- The Credo Beauty is salt crystals, mineral-based scrub where the Puracy is aqueous surfactants, plant-derived cleansers, which is most of the difference in these two grades.
Both products run through the same public rubric: materials, coatings, brand disclosure, lab findings, and recalls, plus a beyond-PFAS hazard analysis. Grades are model-based estimates, not lab tests. How grades work →
More shampoo: see the full ranking