Kiehl's Better Screen UV Serum
Lower PFAS concern, though brand offers no public transparency on the ingredient.
This water-based UV serum lacks waterproofing and grease-resistant treatments that typically introduce PFAS. Kiehl's does not publicly disclose PFAS policies or test results.
We flunk more products than we pass. This one earned its grade. How we grade
Material
Water-based UV serum with humectants and actives
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
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What Kiehl's Better Screen UV Serum is made of, ingredients and materials
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.
What’s concerning
Category baseline
The starting point for this type of product, before anything specific to this product is counted.
No PFAS disclosure
No public statement from the brand about PFAS in this product.
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 have not raised concerns about standard use, 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.
What’s reassuring
Base material not linked to PFAS
The main material recorded for this product is not one associated with PFAS.
Formaldehyde / VOCs
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.
Source, ATSDR ↗Heavy metals
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.
Source, FDA ↗How is this PFAS grade calculated?
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.
What is not known about PFAS in this product?
- Basis
- Model estimate, 72% confidence, not a lab result
- Lab test
- None on record for this exact product
- Brand statement
- Kiehl's has made none
Formulations change between production runs, so check the current label. How we grade.
What are the PFAS-free alternatives to Kiehl's Better Screen UV Serum?
- Mineral sunscreen, zinc oxide base
- A third party reports verifying it as PFAS-free
- 1,4-dioxane (non-intentional contaminant from surfactants/emulsifiers)
2 hazards checked on this product, all on its full breakdown.
- mineral sunscreen (zinc oxide or titanium dioxide base)
- The brand calls it PFAS-free, which we have not verified
- Synthetic fragrance allergens
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.