Does Prose shampoo have PFAS?
PFAS Authority is a scoring system, not a laboratory. We do not test products ourselves. Grades are model-based, built from published ingredients, materials, certifications, brand disclosures and third-party lab results where they exist. See the rubric.
We graded 8 Prose shampoo products, averaging Excellent (75/100). 8 of them grade Good or better. Against the other 27 shampoo brands we grade, where the middle brand sits at 75/100, Prose is about typical, scoring above 44% of them.
Prose shampoo worth buying Good or better, safest first
Prose
Reduces Breakage Non-Stripping Shampoo
water-based liquid shampoo formula
1,4-dioxane (synthetic contaminant)
Dioxane is a common byproduct of ethoxylation in mild surfactants used in sulfate-free…
Fragrance allergens and undisclosed components
Prose uses fragrance blends but does not list individual fragrance ingredients…
Formaldehyde / VOCs
Preservatives such as DMDM hydantoin or imidazolidinyl urea (both common in shampoos)…
Microbial contamination if seal is compromised
Liquid shampoos are aqueous and can support bacterial or mold growth if stored in…
Lower-concern product with no inherent PFAS triggers; brand makes no public commitment.
⚠Risky category by default
Prose
Alcohol-Free Conditioner
aqueous conditioner (liquid hair care, no coating or treatment layer)
Fragrance allergens
Prose does not publicly disclose fragrance components or allergen warnings. Rinse-off…
1,4-dioxane from surfactant ethoxylation
Liquid conditioners often use ethoxylated emulsifiers (e.g., ceteth compounds) which may…
Lower concern; liquid hair care lacks typical PFAS vectors but brand offers no transparency.
⚠Risky category by default
Prose
Dry Shampoo for Dry Scalp
Powder-based dry shampoo (starch, talc, or clay base)
Talc contamination and inhalation risk
Prose does not publicly state whether the dry shampoo base is talc or alternative…
Fragrance allergens and undisclosed components
Prose formulas typically include fragrance, listed as a single ingredient on the label…
Lower concern; dry shampoo powders rarely need PFAS, but brand provides no disclosure.
⚠Risky category by default
Prose
Custom
custom formulated haircare (shampoo/conditioner base)
Fragrance allergens and undisclosed fragrance components
Prose does not publish fragrance ingredient breakdowns (typically protected as trade…
1,4-dioxane contamination in surfactants
If Prose uses ethoxylated surfactants (common in shampoos), trace 1,4-dioxane can result…
Scalp or skin irritation from misformulation or preservative excess
Custom formulation is intended to minimize irritation, but without independent batch…
Lower PFAS concern for haircare; brand remains silent on ingredient transparency.
⚠Risky category by default
Prose
Alcohol-Free Hair Mask
aqueous cosmetic mask (glycerin, humectants, emollients)
Fragrance allergens (undisclosed components)
Prose does not list fragrance ingredients separately on publicly available packaging or…
1,4-dioxane (solvent contaminant in emulsifiers)
Ethoxylated ingredients (commonly used as emulsifiers in conditioners) can carry trace…
Lower PFAS concern; typical leave-in cosmetic with no known Teflon-family coating use, but no transparency.
⚠Risky category by default
Prose
Prose
Cosmetic formulations (hair/skin care liquids and powders)
Fragrance allergens and undisclosed fragrance components
Prose allows fragrance customization but does not itemize fragrance constituents in…
Formaldehyde / VOCs
While Prose has moved away from parabens, many liquid shampoos still rely on…
1,4-dioxane contamination in ethoxylated surfactants
Liquid shampoos often use ethoxylated surfactants (e.g., sodium lauryl ether sulfate…
Scalp irritation from high pH or over-active ingredients
Personalized formulations may include potent actives (e.g., salicylic acid, zinc…
Lower PFAS concern; no known water-repellent coating/coating risks, but brand stays silent on chemical transparency.
⚠Risky category by default
Prose
Persea Shampoo 8.45oz (250ml)
aqueous shampoo (liquid)
Formaldehyde / VOCs
Liquid shampoos commonly use preservatives such as sodium methylisothiazolinone…
Fragrance allergens and undisclosed components
Shampoos commonly list 'fragrance' or 'parfum' as a catch-all term covering 30+…
1,4-dioxane (processing contaminant in surfactants)
Shampoos using ethoxylated surfactants (common in mainstream formulations) may contain…
Lower concern for PFAS; typical liquid shampoo with no known fluorinated additives.
⚠Risky category by default
Prose
Moisturizing Shampoo
Water-based shampoo formulation (typical: surfactants, humectants, conditioning agents)
Fragrance allergens and sensitizers
Prose shampoos contain fragrance blends listed as 'Fragrance' or 'Parfum' on ingredient…
Scalp or eye irritation from surfactant strength
Even gentle surfactants can irritate sensitive scalp skin or eyes on contact. Prose's…
Lower PFAS concern for typical liquid shampoo; no red flags but brand offers no disclosure.
⚠Risky category by default
Better shampoo from other brands
Graded higher than the Prose average of 75.
Credo Beauty
Roz Salt Scalp Scrub
salt crystals, mineral-based scrub
Fragrance allergens or undisclosed fragrance components
Limited concern
Mechanical irritation from crystal size and shape
Moderate concern
Low risk, salt scrub formulation carries minimal PFAS concern.
✓Verified PFAS-free by a third party
Puracy
Public Goods Shampoo Refill
aqueous surfactant-based liquid shampoo
1,4-dioxane (surfactant byproduct)
Limited concern
Fragrance allergens (undisclosed components)
Limited concern
Bacterial or mold growth in refill container
Limited concern
Lower concern for a MADE SAFE certified shampoo avoiding fluorinated ingredients.
✓Verified PFAS-free by a third party
Puracy
Natural Shampoo
aqueous surfactants, plant-derived cleansers
1,4-dioxane (contaminant in ethoxylated surfactants)
Limited concern
Fragrance allergens and sensitizers
Limited concern
Formaldehyde / VOCs
Limited concern
Lower concern for a liquid shampoo with minimal PFAS risk in this category.
⚠Risky category by default
See every Prose product we grade on the Prose brand page, or the full shampoo ranking.