Two Cases of Allergic Contact Dermatitis to Hinokitiol and Pantothenylethylether in Hair Growth Promoter

January 1997 in “ Skin research ”

Kumiko Hosono, Motoko Wakita

hinokitiol pantothenylethylether allergic contact dermatitis hair growth promoter patch test scalp dermatitis

TLDR Hinokitiol and pantothenylethylether in hair products can cause strong allergic reactions.

The document reported two cases of allergic contact dermatitis in men aged 62 and 51, caused by a hair growth promoter containing hinokitiol and pantothenylethylether. Both developed rashes after using the product for about two years, with patch tests confirming positive reactions to these ingredients. Despite being weak sensitizers, the substances caused strong allergic reactions, possibly due to the application method and alcohol content. The study emphasized the importance of patch testing for scalp dermatitis linked to hair products.

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