Apple Cider Vinegar Shampoo vs Straight Hair Shampoo: which is safer?
These two grade almost identically. Pick on price and preference; neither has a PFAS edge.
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)
Function of Beauty
Straight Hair Shampoo
PFAS grade
Overall grade
Verdict
Hazard flags
Material
Confidence
PossibleFragrance allergens and sensitizers
Possible1,4-dioxane (preservative byproduct)
PossibleEye and mucous membrane irritation from surfactants
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 Function of Beauty.
- We flag Fragrance allergens and sensitizers, 1,4-dioxane (preservative byproduct) and Eye and mucous membrane irritation from surfactants on the Function of Beauty and not on the Aveeno.
- The Aveeno is aqueous liquid shampoo (typical surfactants, conditioning agents, water) where the Function of Beauty is aqueous shampoo formulation; no protective coating or DWR treatment typical, 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 →
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