Kiehl's · Sunscreen
Kiehl's Better Screen UV Serum
Lower-concern cosmetic; no PFAS triggers identified, but brand offers no transparency.
Kiehl's Better Screen UV Serum is a cosmetic UV filter serum with no known PFAS risk factors, it contains no waterproofing, grease resistance, or fluorinated coatings typical of PFAS-containing products. However, Kiehl's does not publicly disclose PFAS policies or test results, leaving room for minor ingredient concerns.
Shop Kiehl's on Amazon →Material
Water-based UV serum with humectants and 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
Kiehl's Better Screen UV Serum is a water-based sunscreen formulation, meaning its base is aqueous rather than oil-derived, which reduces risk of certain volatile organic compounds. The product contains UV-active ingredients (likely chemical absorbers such as avobenzone or homosalate) dissolved in water with humectants and botanical actives. Water-based formulations generally have lower off-gassing potential than oil or silicone bases and do not bioaccumulate lipophilic contaminants in the same way. No oxybenzone or other restricted UV filters are documented in publicly available ingredient disclosures for this product.
The brand's record and disclosure
Kiehl's (owned by L'Oréal) does not publish comprehensive PFAS or per-and-polyfluoroalkyl substance declarations, and takes no public stance on fluorochemical use in sunscreens. The brand has no major product recalls or documented heavy-metal contamination incidents on public record. Kiehl's is not certified by third-party programs such as EWG Verified or NSF/ANSI, leaving ingredient transparency dependent on label and voluntary disclosures. The parent company L'Oréal has committed to reducing microplastics but does not isolate sunscreen formulations in that pledge.
How it compares in its category
Water-based chemical sunscreens are standard in premium skincare lines and occupy a middle ground between mineral (zinc/titanium oxide) and highly occlusive oil-based formulas. Kiehl's Better Screen is positioned as a lightweight daily serum rather than a reef-safe mineral or sport-grade product, so it lacks the environmental certifications common to eco-marketed alternatives. Compared to budget drugstore sunscreens, Kiehl's formulation includes more sophisticated hydrating actives but also more fragrance and preservative systems. Its price point reflects brand positioning rather than superior safety credentials.
If you buy it
Apply as directed (typically 1/4 teaspoon for face) and reapply every two hours if swimming or sweating; water-based formulas are more prone to film breakdown under moisture than mineral sunscreens. Store in a cool, dry place away from direct heat or sunlight, as UV-absorbing chemicals can degrade if exposed to high temperatures. Discontinue immediately if irritation, redness, or allergic reaction develops; fragrance and botanical actives are common sensitizers in sunscreen serums. Replace bottle annually, as chemical UV filters lose efficacy over 12 months, and do not use on infants under six months old.
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
Kiehl's sunscreen formulations are known to contain fragrance compounds; fragrance is a documented contact allergen in sunscreens and may trigger photosensitivity in sensitive individuals. This product is not fragrance-free.
Chemical UV filter photostability and skin absorption
Water-based chemical sunscreens rely on absorbing filters (likely avobenzone or similar) which can degrade under UV exposure and are absorbed systemically into skin. While regulatory agencies consider standard use safe, high-frequency reapplication or use under occlusion may increase absorption; no product-specific dermal absorption studies are publicly available.
Preservative system irritation
Water-based serums require robust preservative systems to prevent bacterial or fungal growth; common preservatives in cosmetics (parabens, phenoxyethanol, methylisothiazolinone) are documented contact sensitizers in some individuals. Exact preservative identity is not disclosed on publicly available ingredient lists for this product.
Formaldehyde releasers
No formaldehyde or formaldehyde-releasing preservatives are documented in standard ingredient listings for Kiehl's Better Screen UV Serum; this hazard class is not a known concern for this product line.
Heavy metals in colorants or actives
No cosmetic colorants or mineral pigments are standard ingredients in clear water-based UV serums; botanical actives in Kiehl's formulations are not documented sources of cadmium or lead contamination, though independent third-party testing of finished products is not publicly reported.
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 Sunscreen
Goddess Garden
Natural Sunscreen SPF 30 6 oz
mineral-based UV filters, plant-derived waxes
Lower-concern mineral sunscreen with credible PFAS-exclusion certification.
✓Verified PFAS-free by a third party
Raw Elements
Eco Formula SPF 30 Sunscreen
mineral sunscreen (zinc oxide, titanium dioxide)
Lower PFAS concern; mineral sunscreen with third-party verification and no known fluorochemical history.
✓Verified PFAS-free by a third party
Raw Elements
Face & Body Sunscreen Tin SPF 30
mineral sunscreen (zinc oxide/titanium dioxide), tin packaging
Lower-concern choice; mineral sunscreen + explicit PFAS-free positioning + third-party certs reduce risk.
✓Verified PFAS-free by a third party
More sunscreen 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.