Your child is in a critical window

Preview text: The first 1,000 days matter the most

Persephone BiosciencesSunday, Aug 30, 2026 at 11:08 AM EasternKlaviyo
Persephone BiosciencesYour child is in a critical window
Subject
Your child is in a critical window
Preview text
The first 1,000 days matter the most
From
hello@persephone.bio
Sent
Sun Aug 30, 2026, 11:08 AM ET
Sent to
persephone.bio
Size
46 KB
Images
4
Links
11, 6 of them buttons
Subject length
34 characters

Against Persephone Biosciences's usual

Sent in its busiest hour, 11 AM, which holds 20% of its emails. The subject is 34 characters; its average is 32.

Email headers

What the brand's servers put on this email. Our receiving servers, the address we subscribed with and unsubscribe links are left out.

From
Persephone Biosciences <[email protected]>
Subject
Your child is in a critical window
Date
Sun, 30 Aug 2026 15:08:28 +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
List-Unsubscribe
Present, one-click

Servers it passed through, newest first

  1. from (unnamed) by kmta-mta-blue-….servers.clovesoftware.com with SMTP

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

Report this email

Sent just before and after

Sep 1, 2026 11:10 AMMost probiotic companies start with the strains
Aug 31, 2026 7:50 PM90% of babies are missing this
Aug 31, 2026 1:46 PMHere’s 30% off to get started
Aug 30, 2026 11:08 AMYour child is in a critical window (this email)
Aug 28, 2026 11:00 AM90% of babies are missing this
Aug 26, 2026 10:59 AM👋 I'm Stephanie
Aug 25, 2026 10:58 AMWe studied a lot of 💩

More from Persephone Biosciences

All Persephone Biosciences emails

Sent the same day by similar brands

Same ESP and the closest weekly volume, sent on Aug 30, 2026.

Get the Black Friday insights

We're collecting every Black Friday email from more than 50,000 brands as it lands. Get what we find: who starts first, the biggest discounts, and the subject lines that stand out.

Free. Unsubscribe anytime.