We test like lives depend on it

Preview text: Third-party tested, clinically backed

Persephone BiosciencesFriday, Sep 11, 2026 at 11:35 AM EasternKlaviyo
Persephone BiosciencesWe test like lives depend on it
Subject
We test like lives depend on it
Preview text
Third-party tested, clinically backed
From
hello@persephone.bio
Sent
Fri Sep 11, 2026, 11:35 AM ET
Sent to
dumponcancer.com
Size
36 KB
Images
7
Links
9, 4 of them buttons
Subject length
31 characters

Against Persephone Biosciences's usual

Sent in its busiest hour, 11 AM, which holds 20% of its emails. The subject is 31 characters; its average is 32.

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From
Persephone Biosciences <[email protected]>
Subject
We test like lives depend on it
Date
Fri, 11 Sep 2026 15:35:02 +0000
Message-ID domain
klaviyomail.com
Return-Path domain
k3.hello.persephone.bio
DKIM signature
d=shared.klaviyomail.com s=def1; d=hello.persephone.bio s=mtd1
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Other sending headers (names only): X-Mailer-Info-Extra2, X-Mailer-Info, X-Mailer-Info-Extra, X-Kmail-Account, X-Kmail-Flow, X-Kmail-Message, X-Kmail-Ops, X-Report-Abuse

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Sent just before and after

Sep 13, 2026 11:39 AM👋 I'm Stephanie
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Sep 11, 2026 11:35 AMWe test like lives depend on it (this email)
Sep 10, 2026 11:32 AMHere’s 30% off to get started
Sep 9, 2026 1:53 PMMost probiotic companies start with the strains
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