Kerastase · Shampoo
Kerastase Nutritive Bain Satin Riche Shampoo 8.5 oz
Lower PFAS concern for this rinse-off shampoo; no evidence of deliberate PFAS use.
Kerastase Nutritive Bain Satin Riche is a rinse-off shampoo formulated primarily with water and standard surfactants. The brand makes no public claims about PFAS, and rinse-off hair care products rarely require water-repellent or stain-resistant PFAS treatments. No credible lab data or recalls flagged; lower concern applies here.
Shop Kerastase on Amazon →Material
aqueous shampoo base (water, surfactants, conditioning agents)
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
Kerastase Nutritive Bain Satin Riche is an aqueous shampoo base formulated with surfactants (cleansers), conditioning polymers, and emollients designed to soften and moisturize hair. The 'Satin Riche' variant emphasizes ceramides, amino acids, and oils (likely silicones or plant-derived conditioning agents) to reduce dryness. Because this is a rinse-off product applied briefly to hair and scalp then washed away, dermal and systemic absorption risk is substantially lower than leave-on cosmetics.
The brand's record and disclosure
Kerastase is owned by L'Oreal, which maintains compliance with FDA and EU cosmetic ingredient regulations. The brand does not publish a dedicated PFAS transparency statement, and ingredient lists do not explicitly declare PFAS-based water-repellents or surfactants (common in some premium personal care lines). No recalls or safety advisories specific to this product line have been established. L'Oreal products generally meet ingredient restrictions in major markets, though disclosure of trace contaminants remains opaque.
How it compares in its category
This luxury shampoo sits at the premium end of the mass-market segment; formulations at this price point typically contain more conditioning polymers and fragrance than budget alternatives. Compared to medical or clarifying shampoos, Nutritive Bain Satin Riche carries lower risk of sensitizing actives (no sulfates, no strong keratolytics). Most competitors in the luxury hair-care category (Bumble and bumble, Olaplex, Moroccanoil) use similar surfactant and polymer chemistry with comparable regulatory compliance.
If you buy it
Use as directed: apply to wet hair, lather, rinse thoroughly with water to remove all product residue. Store in a cool, dry place away from direct sunlight to preserve emulsifier stability. Discontinue use only if itching, redness, or burning occurs (sign of contact sensitization to fragrance or preservative, not formulation defect). Replace bottle every 6-12 months of regular use to minimize bacterial growth and oxidative degradation of conditioning agents.
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.”
Fragrance allergens
Kerastase shampoos contain synthetic fragrance blends not fully disclosed on label due to fragrance trade secret protection. Individuals with fragrance sensitivity or history of contact dermatitis may experience scalp irritation; this is a recognized but non-toxic risk common across fragranced shampoos.
Formaldehyde-releasing preservatives
No formaldehyde donors (DMDM hydantoin, imidazolidinyl urea) are listed or known to be used in this product line. Modern Kerastase formulations use gentler preservative systems (phenoxyethanol, methylisothiazolinone), though full preservative disclosure is not publicly available.
1,4-dioxane contamination
This surfactant-based shampoo may contain trace 1,4-dioxane as a byproduct of ethoxylation in polyethylene glycol-derived conditioning agents. Rinse-off exposure is minimal; no regulatory limit exists in the United States, though the EU limits it in leave-on products. This is a known but unquantified contaminant in mass-market shampoos.
Heavy metals in colorants or mica
Kerastase Nutritive Bain Satin Riche is an opaque or translucent liquid; any mica or iron oxide colorants present are subject to FDA ingredient limits for color additives. No public test data confirms heavy metal presence; regulatory compliance is assumed.
Scalp irritation from high pH or alkaline actives
This is a gentle conditioning shampoo formulated for sensitive and dry hair; pH is likely neutral to mildly acidic (5.5-7), which reduces risk of disrupting scalp barrier. No keratolytic actives (salicylic acid, sulfur) are present.
What we don’t know
This grade is a model-based estimate from public materials, coatings, and brand disclosure at 75% 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.
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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.