Persea Shampoo 8.45oz (250ml)
Lower concern for PFAS; typical liquid shampoo with no known fluorinated additives.
This liquid shampoo lacks waterproofing or water-repellency claims that would indicate fluorinated compounds. Like typical shampoos, it carries lower inherent PFAS risk than treated textiles or coated cookware.
We flunk more products than we pass. This one earned its grade. How we grade
Material
aqueous shampoo (liquid)
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
What’s concerning
No PFAS disclosure
The company has not publicly discussed PFAS in this product.
Category baseline
cosmetics is a category where PFAS exposure is more common.
Formaldehyde / VOCs
Liquid shampoos commonly use preservatives such as sodium methylisothiazolinone, methylchloroisothiazolinone, or quaternium-15 (a formaldehyde releaser). No formulation data for Persea is publicly available, so the specific preservative system cannot be confirmed. If present, these are regulated and used at safe levels in rinse-off products, but individuals with sensitive skin may react.
Source: ATSDR ↗Fragrance allergens and undisclosed components
Shampoos commonly list 'fragrance' or 'parfum' as a catch-all term covering 30+ undisclosed aromatic compounds. Prose does not publish full fragrance composition, making it impossible to rule out common allergens like limonene, linalool, or cinnamaldehyde. Risk is low for most users but moderate for fragrance-sensitive individuals.
1,4-dioxane (processing contaminant in surfactants)
Shampoos using ethoxylated surfactants (common in mainstream formulations) may contain trace 1,4-dioxane as a byproduct of manufacturing, typically at levels below regulatory concern. No testing data is available for Persea. The FDA monitors but does not ban this contaminant in rinse-off products; exposure during shampooing is minimal.
What’s reassuring
Safe base material
Made from ceramic, mineral, or natural fiber with no PFAS risk.
Heavy metals
No contamination incidents have been documented for Prose Persea Shampoo. Liquid shampoos do not contain synthetic pigments or mineral colorants that typically carry lead or cadmium risk. Botanical extracts are lower-risk than synthetic colorants, but Prose does not publish heavy metal testing results.
Source: FDA ↗Microplastic shedding
Liquid shampoos do not contain microbeads or microplastics. Persea, as a liquid formulation, poses no microplastic risk during use or disposal.
The full breakdown
What it's made of and why it matters
Persea Shampoo is an aqueous (water-based) liquid formulation, the safest delivery form for personal care products because it avoids volatile organic compounds and heat-induced leaching risks inherent in solid or oil-based formats. Liquid shampoos do not require synthetic polymers, flame retardants, or heavy metal pigments to function. The aqueous matrix also means no microplastic shedding during use, unlike microbeads in older formulations (banned in most markets since 2015).
The brand's record and disclosure
Prose is a hair-care brand that markets personalized shampoo formulations but has not published detailed ingredient transparency reports or third-party safety certifications on their website as of public record. The brand does not claim NSF, EWG Verified, or similar certification. No recalls or contamination incidents involving Prose Persea Shampoo are documented in FDA or consumer safety databases. The silent PFAS stance suggests no active fluorochemical use, but also reflects limited public commitment to transparency on this issue.
How it compares in its category
Liquid shampoos are the lowest-risk format in personal care. Persea sits in the mainstream premium segment (not budget, not clinical). Comparable products from brands like Ouai, Bumble and bumble, and Olaplex share similar aqueous formulations and lack of published recalls. Prose's personalization model does not inherently reduce or increase safety risk compared to fixed-formula competitors; safety depends on ingredient sourcing and manufacturing controls, not customization.
If you buy it
Store in a cool, dry place away from direct sunlight to prevent degradation of botanical actives if listed. Use within 12 months of opening to minimize risk of microbial growth in the opened container (liquid shampoos lack the preservative load of cosmetics and can support bacteria if stored poorly). No heat or UV exposure concerns during normal showering. Discontinue use if scalp irritation or allergic reaction occurs; patch test if you have sensitive skin.
What we don’t know
- Basis
- Model estimate, 72% confidence, not a lab result
- Lab test
- None on record for this exact product
- Brand statement
- Prose has made none
Formulations change between production runs, so check the current label. How we grade.
Safer alternatives in Shampoo
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
More shampoo grades
How we score: every product runs through the same public 0–100 rubric based on materials, coatings, brand disclosure, lab findings, and recalls. See the full methodology → Spotted a mistake? Report an error.