IPL
Pronunciation: eye-pee-el
Also written as: IPL — Intense Pulsed Light
Intense Pulsed Light; a broad-spectrum, non-coherent light-based device used to treat pigmentation, vascular lesions, and photoageing, distinct from lasers in that it emits multiple wavelengths simultaneously.
Full Definition
IPL (Intense Pulsed Light) devices emit polychromatic light in the range of approximately 515–1200 nm, with cutoff filters used to target specific chromophores such as melanin or oxyhaemoglobin. Unlike lasers, which emit a single coherent wavelength, IPL delivers a broad spectrum, making it more versatile but less precise. It is widely used for treating solar lentigines, rosacea, facial telangiectasia, and diffuse redness. Editors must note that IPL is frequently but incorrectly described as a 'laser' in marketing and lay materials; this should be corrected to 'light-based device' or 'broadband light therapy' in clinical copy. The acronym must be expanded on first use in formal documents.
Usage
Usage note: IPL is not a laser; avoid allowing this conflation in any clinical or regulatory text. Expand on first use.
In Context
- "The patient information sheet incorrectly referred to IPL as a 'laser treatment'; this was amended to read 'broad-spectrum light therapy'." — Editorial correction note
- "IPL (Intense Pulsed Light) is contraindicated in patients with a Fitzpatrick skin type V or VI due to the risk of post-inflammatory hyperpigmentation." — Clinical guideline