Kristin Ess · Shampoo
Kristin Ess The One Signature Shampoo
Lower PFAS concern for a rinse-off liquid cosmetic; no waterproofing or stain-resist claims that would justify PFAS use.
Kristin Ess shampoo is a rinse-off liquid product with no publicly disclosed waterproofing, stain resistance, or non-stick coatings, the main drivers of PFAS in cosmetics. The brand makes no PFAS claims.
Shop Kristin Ess on Amazon →Material
aqueous shampoo liquid, standard emulsifiers and surfactants
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
Why this grade
Category baseline
cosmetics is a category where PFAS exposure is more common.
No PFAS disclosure
No public statement about PFAS in this product.
Safe base material
Made from a material with no inherent PFAS use (ceramic, mineral, or natural fiber).
The full breakdown
What it's made of and why it matters
Kristin Ess The One Signature Shampoo is an aqueous liquid formulation containing standard anionic and amphoteric surfactants, emulsifiers, and conditioning agents typical of mainstream shampoos. The product is designed to be rinsed away completely after brief contact with hair and scalp, which drastically reduces exposure time and absorption risk for any chemical constituents. No unusual or high-risk raw materials have been publicly documented in this formulation.
The brand's record and disclosure
Kristin Ess (owned by Unilever) does not maintain a public-facing chemical disclosure database or third-party safety certifications (e.g., EWG Verified, Leaping Bunny) for this product line. The brand has not issued recalls or faced established safety controversies tied to this shampoo. Ingredient lists are available on retailer sites but the company does not voluntarily highlight sourcing, allergen screening, or formulation philosophy beyond marketing claims.
How it compares in its category
This product sits in the mainstream, mass-market shampoo tier. It offers no premium safety positioning (organic, hypoallergenic certification, heavy-metal testing) compared to rivals like Pantene or Garnier, but also no red-flag ingredients or manufacturing issues on record. Rinse-off cosmetics as a class carry lower systemic risk than leave-on products because exposure is brief and dermal absorption is minimal.
If you buy it
Use as directed: apply to wet hair, lather, rinse thoroughly with clean water. No special storage precautions are needed beyond keeping the bottle capped and away from extreme heat. If scalp irritation, itching, or rash develops, discontinue and consult a dermatologist; discontinuation is straightforward since there is no buildup risk with rinse-off products. No replacement trigger or maintenance schedule applies.
Beyond PFAS: other things we checked
Established hazard classes for this product type, assessed from public information. These never change the PFAS grade; a Likely flag caps the Verdict at “Buy with care.”
1,4-dioxane (residual solvent)
Standard shampoo surfactant manufacturing may leave trace 1,4-dioxane as a contaminant. FDA does not require labeling or removal below certain thresholds. No specific testing of this product has been published; level reflects industry-wide risk for non-certified formulations.
Fragrance allergens and unlisted components
Shampoo lists fragrance as a catch-all ingredient without disclosing specific fragrance chemicals. Individuals with sensitive scalps or known fragrance sensitivities may experience contact dermatitis. This is common across mainstream shampoos and not unique to Kristin Ess.
Formaldehyde releasers in preservative system
Preservative systems in rinse-off shampoos may include formaldehyde-releasing compounds (e.g., DMDM hydantoin, diazolidinyl urea). Exposure is brief and dermal, not ingested. No specific preservative analysis of this product is publicly available.
Heavy metals in colorants or mineral additives
No recalls, regulatory actions, or independent testing have identified heavy-metal contamination in Kristin Ess shampoos. Standard rinse-off formulations carry minimal heavy-metal risk unless marketed with mineral claims (not the case here).
Allergic contact dermatitis from surfactants
Anionic surfactants in shampoos can trigger scalp irritation or contact dermatitis in sensitive individuals, independent of other hazards. This is product-class risk, not brand-specific, and is reversible upon discontinuation.
What we don’t know
This grade is a model-based estimate from public materials, coatings, and brand disclosure at 72% confidence. It is not a lab result.
No independent PFAS lab test is on record for this exact product. A lab test could move the score in either direction.
The brand has not made a specific, verifiable PFAS-free statement, so part of this score reflects that missing disclosure rather than a confirmed material.
Formulations and coatings change between production runs. Always check the current label before buying.
Safer alternatives in Shampoo
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✓Verified PFAS-free by a third party
Puracy
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Lower-concern shampoo refill; Puracy's MADE SAFE cert and no-PFAS positioning align, but cosmetic formulation labs are rarely published.
✓Verified PFAS-free by a third party
Puracy
Natural Baby Shampoo Body Wash
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Lower PFAS concern, liquid cosmetic with no water-resistant or nonstick triggers.
⚠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.