Miracle Moist Shampoo vs Roz Salt Scalp Scrub: which is safer?
Roz Salt Scalp Scrub is our pick: better on PFAS and on the overall hazard picture.
Aussie
Miracle Moist Shampoo
PFAS grade
Excellent 75/100
Overall grade
Good 53/100
Verdict
Buy
Hazard flags
⚑ 4
Material
aqueous shampoo base with surfactants
Confidence
78%
Possible1,4-dioxane
PossibleFormaldehyde releasers
ReportedFragrance allergens
Our pick
Credo Beauty
Roz Salt Scalp Scrub
PFAS grade
Excellent 100/100
Overall grade
Excellent 86/100
Verdict
Buy
Hazard flags
⚑ 2
Material
salt crystals, mineral-based scrub
Confidence
82%
PossibleFragrance allergens or undisclosed fragrance components
ReportedMechanical irritation from crystal size and shape
Where these two actually differ
- We flag 1,4-dioxane, Formaldehyde releasers, Fragrance allergens and Silicone accumulation and scalp buildup on the Aussie and not on the Credo Beauty.
- We flag Fragrance allergens or undisclosed fragrance components and Mechanical irritation from crystal size and shape on the Credo Beauty and not on the Aussie.
- The Aussie is aqueous shampoo base with surfactants where the Credo Beauty is salt crystals, mineral-based scrub, which is most of the difference in these two grades.
- The gap is 25 points, wide enough that this is not a close call, and the Credo Beauty is the one to buy.
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