Blogger sequences her own armpit microbiome to verify a probiotic spray actually works
johnowhitaker · x · 2026-09-16
thisischristina ran a side-by-side self-experiment: after a month of using arcaeabeauty's skin probiotic spray, she sequenced her armpit microbiome with Plasmidsaurus on day 0 vs day 9, spraying only one side.
The sprayed side changed far more than the control, supporting the product's claim of feeding good skin bacteria — a fun consumer-grade microbiome verification, though she notes her sampling technique wasn't perfect.
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