"Collagen helps skin, joints, bones, and muscle." Let's check.

Preview text: What the studies found, and where they stop.

SwolverineThursday, Oct 1, 2026 at 9:01 AM EasternKlaviyo
Swolverine"Collagen helps skin, joints, bones, and muscle." Let's check.
Subject
"Collagen helps skin, joints, bones, and muscle." Let's check.
Preview text
What the studies found, and where they stop.
From
info@swolverine.com
Sent
Thu Oct 1, 2026, 9:01 AM ET
Sent to
swoleverine.com, swolverine.com
Size
78 KB
Images
15
Links
27, 11 of them buttons
Subject length
62 characters

Against Swolverine's usual

Sent in its busiest hour, 9 AM, which holds 36% of its emails. The subject is 62 characters; its average is 34.

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
Swolverine <[email protected]>
Subject
"Collagen helps skin, joints, bones, and muscle." Let's check.
Date
Thu, 01 Oct 2026 13:01:00 +0000 (UTC)
Message-ID domain
geopod-ismtpd-9
Return-Path domain
send.swolverine.com
DKIM signature
d=swolverine.com s=kl2
List-Unsubscribe
Present, one-click

Servers it passed through, newest first

  1. by recvd-…-h4bnj with SMTP
  2. from (unnamed) by geopod-ismtpd-9 with HTTP

Other sending headers (names only): X-Kmail-Account, X-Kmail-Message, X-Kmail-Ops, X-Report-Abuse, X-SG-EID, X-SG-ID, X-Entity-ID

Report this email

Sent just before and after

Oct 13, 2026 3:01 PMIt took us two years to get this right.
Oct 8, 2026 9:04 AMMost BCAAs only do one job
Oct 6, 2026 12:03 PMBought your testosterone booster from page one?
Oct 1, 2026 9:01 AM"Collagen helps skin, joints, bones, and muscle." Let's check. (this email)
Sep 29, 2026 9:01 AMYour cells need more than fuel. They need CoQ10.
Sep 24, 2026 9:06 AM"Cortisol lowers testosterone?"
Sep 22, 2026 9:06 AMMore Caffeine Isn't the Answer Anymore...

More from Swolverine

All Swolverine emails

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.