Samantha Schneider and Henry Lim review inorganic ultraviolet filters. Crossref places the article in volume 35, pages 442 to 446. The DOI on the PDF is 10.1111/phpp.12439. Cited penetration studies are not re-extracted.
Key numbers
The review states that zinc oxide and titanium dioxide are used in sunscreens as nanoparticles, and that nanoparticle here denotes a size below 100 nm. No original metal-concentration survey is reported.
Methods (brief)
Narrative review.
Evidence fitness
The size cutoff is the review’s own definitional statement. Occurrence numbers from papers it cites are not copied.
Limitations
Review. No new analytical data.
Related evidence
Update history
No substantive edit history is available in this build. The full commit record is available in git.