In-vivo pilot study to assess a new plant-based cosmetic formulation containing Ziziphus joazeiro bark extract and Apium graveolens seed extract for the improvement of dandruff while enhancing scalp microbiome balance and barrier function in subjects with oily to dry sensitive scalps.

Int J Cosmet Sci · 2026 · PMC12877976 · PMID 40718957

Europe PMC DOI

hedged sentence

0.0003

closest p · 0.0× alpha

0.0003

boldest claim

The sentences

highly significantp = 0.00035actually significant

TEWL analysis showed a highly significant improvement (−18.60%, p = 0.00035).

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