Urban Decay · Makeup
Urban Decay Stay Naked Weightless Liquid Foundation
Lower concern; typical liquid foundation with no known PFAS triggers, but brand discloses nothing.
Urban Decay's Stay Naked foundation is a water-based liquid cosmetic with no disclosed waterproof or stain-resistant treatment, the primary PFAS risk pathways in makeup. The brand makes no PFAS claims either way. No public lab data exists for this product.
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water-based liquid foundation with silicones, glycerin, and pigments
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
Stay Naked is a silicone-based liquid foundation (dimethicone is the primary film-former) combined with water, glycerin humectant, and iron oxide plus titanium dioxide pigments for color and coverage. Silicones in foundations are chemically stable and do not migrate into skin; glycerin is a common skin-conditioning agent with no known toxicity at cosmetic concentrations. The pigments used (iron oxides and titanium dioxide) are approved colorants in the US and EU with long safety records in cosmetics.
The brand's record and disclosure
Urban Decay has no documented recalls or safety controversies for this product line as of available records. The brand does not publicly disclose PFAS testing data or commitment to PFAS reduction, which is typical of many mainstream cosmetics companies but represents a transparency gap. Urban Decay is owned by L'Oreal, which has not adopted industry-leading PFAS phase-out policies, though neither company is flagged for unlawful heavy metal or formaldehyde contamination in finished products.
How it compares in its category
This product sits in the mainstream premium liquid foundation segment; its silicone-glycerin base is industry standard and carries no higher risk than most competitors (MAC Fix+, Fenty Beauty Pro Filt'r, Maybelline Fit Me). It offers better stability and fewer preservative demands than water-forward formulas, reducing reliance on formaldehyde-releasing preservatives. No special allergen or contamination concerns distinguish it from other silicone-based foundations in the same price tier.
If you buy it
Store in a cool, dry place away from direct sunlight to prevent emulsion breakdown and potential separation. The applicator sponge should be washed weekly with soap and water to prevent bacterial buildup; replace every 2-3 months. Do not expose the product to temperatures above 45C (113F) or freeze it, as thermal stress can degrade the silicone film. Discontinue use immediately if you notice color change, odor, or separation that does not remix.
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 (solvent contaminant)
1,4-dioxane can form as a byproduct in cosmetics containing ethoxylated ingredients or during synthesis; no testing data or recall history exists for Stay Naked specifically, and silicone-glycerin bases are lower-risk formulation types for this contaminant.
Heavy metal residues in pigments (lead, cadmium, arsenic)
Iron oxides and titanium dioxide used in foundations are regulated by US FDA and EU cosmetics rules; no recalls or test failures have been documented for Urban Decay products, though brands do not routinely publish heavy metal test results publicly.
Fragrance allergens
Stay Naked contains fragrance listed as a minor ingredient; fragrance is a known allergen trigger for sensitive skin. Those with fragrance sensitivity should patch test or request full ingredient disclosure from Urban Decay before full-face use.
Preservative-related irritation (formaldehyde releasers)
The product formulation does not list known formaldehyde-releasing preservatives (imidazolidinyl urea, dmdm hydantoin); silicone-glycerin emulsions are naturally more stable and typically use gentler preservatives.
Sponge applicator bacterial contamination
The included sponge applicator is a reservoir for bacterial and fungal growth if not cleaned regularly; this is a general risk for all liquid foundations with sponge applicators, not specific to Urban Decay's formula.
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.
More makeup 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.