Apple Cider Vinegar Shampoo vs No.4 BOND MAINTENANCE 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)
Olaplex
No.4 BOND MAINTENANCE SHAMPOO
PFAS grade
Overall grade
Verdict
Hazard flags
Material
Confidence
Possible1,4-dioxane (rinse-off cosmetic contaminant)
PossibleFormaldehyde releasers (preservative antimicrobials)
PossibleFragrance allergens (undisclosed constituents)
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 Olaplex.
- We flag 1,4-dioxane (rinse-off cosmetic contaminant), Formaldehyde releasers (preservative antimicrobials), Fragrance allergens (undisclosed constituents) and Polymer buildup and scalp irritation with infrequent rinsing on the Olaplex and not on the Aveeno.
- The Aveeno is aqueous liquid shampoo (typical surfactants, conditioning agents, water) where the Olaplex is Aqueous surfactant blend, conditioning polymers, water, 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