Apple Cider Vinegar Shampoo vs Smooth Proof Shampoo: which is safer?
Aveeno Apple Cider Vinegar Shampoo is our pick, better on PFAS and on the overall hazard picture.
Our pick
Aveeno
Apple Cider Vinegar Shampoo
PFAS grade
Overall grade
Verdict
Hazard flags
Material
Confidence
PossibleSurfactant irritation (skin/eye contact)
PossibleFragrance allergens
PossibleMicrobial contamination (post-purchase)
Biolage
Smooth Proof Shampoo
PFAS grade
Overall grade
Verdict
Hazard flags
Material
Confidence
PossibleFragrance allergens and sensitizers
PossibleFormaldehyde-releasing preservatives
ReportedEye and mucous membrane irritation
Where these two actually differ
- We flag Surfactant irritation (skin/eye contact), Fragrance allergens and Microbial contamination (post-purchase) on the Aveeno and not on the Biolage.
- We flag Fragrance allergens and sensitizers, Formaldehyde-releasing preservatives and Eye and mucous membrane irritation on the Biolage and not on the Aveeno.
- The Aveeno is aqueous liquid shampoo (typical surfactants, conditioning agents, water) where the Biolage is aqueous liquid shampoo formulation, which is most of the difference in these two grades.
- These two are level, close enough that price and fit should decide it rather than our grade.
Both products run through the same public rubric, which covers 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