Credo Beauty · Shampoo
Under Your Skin Density Shampoo
Lower PFAS concern for this category; no red flags, but brand transparency is absent.
Under Your Skin Density Shampoo is a rinse-off liquid cosmetic with no known PFAS-prone manufacturing steps (no waterproofing, nonstick coatings, or grease resistance needed). Credo Beauty as a brand emphasizes clean beauty but does not publicly disclose PFAS testing or commitments for this product.
Shop Credo Beauty on Amazon →Material
aqueous shampoo base, typical cosmetic actives
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
Under Your Skin Density Shampoo is a water-based cosmetic formulation typical of modern sulfate-free shampoos, likely containing surfactants, conditioning agents, and botanical actives marketed for volumizing benefit. The aqueous base means no volatile organic compounds or high-heat degradation risk during normal use. No public information indicates non-standard dyes, preservatives, or heavy-metal pigments in this product line.
The brand's record and disclosure
Credo Beauty positions itself as a clean beauty retailer and curates products against synthetic fragrance and hormone-disrupting chemicals, but does not publish ingredient traceability reports or third-party safety certifications for its private-label products. The brand's PFAS stance is undisclosed, which is typical of the category but limits independent verification. No recalls or ingredient controversies are on record for this specific product.
How it compares in its category
Aqueous shampoos carry minimal acute chemical hazard compared to aerosol or silicone-heavy formulas. Credo's clean-beauty positioning places this product in the mid-to-premium segment where synthetic dyes and heavy-metal contamination are less common than in mass-market alternatives. However, the lack of public ingredient sourcing data means you cannot confirm absence of problematic fragrance allergens or preservative systems without contacting the brand directly.
If you buy it
Use as directed on damp hair and rinse thoroughly with cool to lukewarm water; hot water is unnecessary and can degrade hair rather than the product itself. Shampoos are not meant for extended skin contact, so rinse completely from scalp and face to avoid irritation in sensitive individuals. Store in a cool, dry place and discard if visible separation, odor change, or visible mold appear (typically 18-24 months for aqueous formulas). If scalp irritation or allergic reactions develop, discontinue and identify the specific ingredient trigger by checking the label.
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 and undisclosed fragrance components
Credo Beauty does not use synthetic fragrance, but botanical fragrance sources and essential oils can still trigger contact sensitization in 1-3% of users. The specific botanical actives in this density formula are not itemized in public labeling, limiting pre-purchase allergen screening.
Formaldehyde-releasing preservatives
No public evidence indicates use of imidazolidinyl urea or dmdm hydantoin in Credo's private-label products, consistent with the brand's clean positioning. Standard aqueous shampoos typically use gentler systems (phenoxyethanol, potassium sorbate), but ingredient verification requires label review.
1,4-dioxane contamination from surfactant manufacturing
Trace 1,4-dioxane can form during ethoxylation of surfactants used in shampoos. Regulatory limits in the US allow up to 10 ppm; most modern formulations test below 1 ppm. Credo does not disclose supplier testing for this contaminant.
Heavy metals in botanical extracts and pigments
Plant-derived actives can accumulate cadmium and lead from soil; premium brands like Credo typically source from tested suppliers, but public testing records are not available for this product line.
Scalp irritation from surfactant concentration or pH imbalance
Any shampoo can trigger irritation in sensitive or compromised skin if pH is off-target (ideal range 4.5-6.5) or surfactant concentration is too aggressive. This product's density claims may indicate higher active levels; patch-test on forearm first if you have reactive scalp.
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
Credo Beauty
Roz Salt Scalp Scrub
salt crystals, mineral-based scrub
Lower-concern buy, salt scrub formulation carries minimal inherent PFAS risk.
✓Verified PFAS-free by a third party
Puracy
Public Goods Shampoo Refill
aqueous surfactant-based liquid shampoo
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
water-based surfactants, plant-derived ingredients, aqueous solution
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.