Solid Shampoo Is Mostly Not Preserved, in Contrast to Liquid Shampoos Used in Hairdressing-A Market Survey in Four European Countries.

Contact Dermatitis · 2026 · PMC13070718 · PMID 41560442

Europe PMC DOI

hedged sentence

0.0000

closest p · 0.0× alpha

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boldest claim

The sentences

highly significantp < 0.00001actually significant

All were preserved with one or several ingredients listed in Annex V of the EU Cosmetics Regulation (EC 1223/2009), which was a highly significant difference compared to solid shampoo ( p < 0.00001, Fisher's exact test).

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Quoted from the open-access full text in Europe PMC under the licence the publisher applied. The sentence is reproduced exactly as published; the emphasis is ours.