Bacterial growth inhibitors in deodorants significantly alter the underarm microbiome

the verdict

SUPPORTED

the evidence backs this

Recorded sources

3 sources for · 0 against

Counts group repeated records of the same source within each side. They do not measure evidence strength or source independence.

Studies consistently demonstrate that the regular use of deodorants and related personal care products exerts a powerful selective pressure, significantly altering the composition, diversity, and density of the underarm microbiome.

The analysis

Papers [0], [3], and [11] explicitly examine the impact of deodorants and personal hygiene products on axillary or skin microbiomes, showing clear shifts in community composition and bacterial density when products are applied or halted. The other papers are on unrelated topics such as vaginal or gut microbiomes, infant development, or general skin reviews without focusing directly on bacterial growth inhibitors in deodorants altering the underarm microbiome.

Evidence for · 3

The impact of skin care products on skin chemistry and microbiome dynamics.

Recorded source metadata

Bouslimani A, da Silva R, Kosciolek T, Janssen S, Callewaert C, Amir A, Dorrestein K, Melnik AV, Zaramela LS, Kim JN, Humphrey G, Schwartz T, Sanders K, Brennan C, Luzzatto-Knaan T, Ackermann G, McDonald D, Zengler K, Knight R, Dorrestein PC. The impact of skin care products on skin chemistry and microbiome dynamics.. 2019. https://doi.org/10.1186/s12915-019-0660-6

Demonstrates that halting or altering deodorant use leads to noticeable shifts in bacterial diversity and ecosystem structure in the axilla.

Source citation format

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More for · 2

The effect of habitual and experimental antiperspirant and deodorant product use on the armpit microbiome.

Recorded source metadata

Urban J, Fergus DJ, Savage AM, Ehlers M, Menninger HL, Dunn RR, Horvath JE. The effect of habitual and experimental antiperspirant and deodorant product use on the armpit microbiome.. 2016. https://doi.org/10.7717/peerj.1605

Shows that applying and stopping deodorants and antiperspirants significantly alters bacterial density, species richness, and community composition.

Source citation format

The dynamic relationship between skin microbiomes and personal care products: A comprehensive review.

Recorded source metadata

Mim MF, Sikder MH, Chowdhury MZH, Bhuiyan AU, Zinan N, Islam SMN. The dynamic relationship between skin microbiomes and personal care products: A comprehensive review.. 2024. https://doi.org/10.1016/j.heliyon.2024.e34549

Reviews how personal care and skincare products, including deodorants, significantly impact and alter the normal flora and skin microbiome.

Source citation format

The paper trail · every fact has a biography

first checked02 Aug 2026

judged → SUPPORTED · 8802 Aug 2026

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