Back away from products with benzalkonium chloride

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Practice + Dermatology

Back away from products with benzalkonium chloride

By Caroline Mahon
Granular-Parakeratosis.1.
[Image: Supplied]

We are on our summer break and the editorial office is closed until 13 January. In the meantime, please enjoy our Summer Hiatus series, in which our journalists curate an eclectic mix from our news and clinical archives throughout the year, The Conversation and other publications we share content with. Please note the comment function has been turned off while we are away. Happy reading!

This article was first published online on 24 April.

Dermatologist Caroline Mahon reviews a scaly skin condition that mainly affects body folds

Key points, The classical presentation of granular parakeratosis is a flexural-predominant symmetrical inflammation associated with dark-brown branny scale. Ski, Pract Green w Pale Yellow
References

1. Northcutt AD, Nelson DM, Tschen JA. Axillary granular parakeratosis. J Am Acad Dermatol 1991;24:541–44.

2. Tian CJ, Purvis D, Cheng HS. Granular parakeratosis secondary to benzalkonium chloride exposure from common household laundry rinse aids. NZ Med J 2021;134(1534):128–42.

3. Sugimoto N, Tada A, Kuroyanagi M, et al. Survey of synthetic disinfectants in grapefruit seed extract and its compounded products. Shokuhin Eiseigaku Zasshi 2008;49(1):56–62.