Roz Salt Scalp Scrub vs Shea Moisture Coconut & Hibiscus Curl & Shine 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
SheaMoisture
Shea Moisture Coconut & Hibiscus Curl & Shine Shampoo
PFAS grade
Overall grade
Verdict
Hazard flags
Material
Confidence
PossibleFormaldehyde releasers in preservatives
PossibleFragrance allergens and undisclosed components
Possible1,4-dioxane contamination in surfactants
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 SheaMoisture.
- We flag Formaldehyde releasers in preservatives, Fragrance allergens and undisclosed components, 1,4-dioxane contamination in surfactants and Contact dermatitis or scalp irritation from plant extracts on the SheaMoisture and not on the Credo Beauty.
- The Credo Beauty is salt crystals, mineral-based scrub where the SheaMoisture is aqueous liquid shampoo (water, cleansers, plant extracts), 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