Background. The British Association of Dermatologists (BAD) develops and produces patient information leaflets (PILs) for British clinicians and the general public, and its website provides access to all the PILs. Health literacy across the UK remains variable. Readability instruments assess the comprehensibility of text, predominately using a composite of sentence length and/or word-syllable number. Instruments usually report text readability categorized by United States (US) grades; ideally, health literature should be rated at US grade ≤ 6 (UK Year 7; age 11-12 years). Methods. In collaboration with the BAD, PILs on the BAD website (n = 203) were downloaded for readability assessment. PILs were processed prior to analysis using Readability Studio software (Oleander Software, Vandalia, OH, USA). Established readability metrics were used: Flesch-Kincaid (FK), Simple Measure of Gobbledygook (SMOG), Gunning fog index (GFI), Fry, FORCAST and Flesch Reading Ease (FRE). Results. The mean (95% CI) US grade levels for all BAD PILs were