Roz Salt Scalp Scrub vs Public Goods Shampoo Refill: which is safer?

Public Goods Shampoo Refill is our pick: better on PFAS and on the overall hazard picture.

Credo Beauty

Roz Salt Scalp Scrub

PFAS grade

A 100/100

Overall grade

B 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

Why this gradeBuy

Our pick

Puracy

Public Goods Shampoo Refill

PFAS grade

A 100/100

Overall grade

B 88/100

Verdict

Buy

Hazard flags

⚑ 3

Material

aqueous surfactant-based liquid shampoo

Confidence

78%

Possible1,4-dioxane (surfactant byproduct)

PossibleFragrance allergens (undisclosed components)

PossibleBacterial or mold growth in refill container

Why this gradeBuy

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