The IGF-1 edge: Huge gains straight from nature

Preview text: No needles, no risks—just pure muscle-building power.

Primal MuscleFriday, May 29, 2026 at 8:45 AM EasternKlaviyo
Primal MuscleThe IGF-1 edge: Huge gains straight from nature
Subject
The IGF-1 edge: Huge gains straight from nature
Preview text
No needles, no risks—just pure muscle-building power.
From
orders@primalmuscle.com
Sent
Fri May 29, 2026, 8:45 AM ET
Sent to
primalmuscle.com
Size
42 KB
Images
6
Links
6, 3 of them buttons
Subject length
47 characters

Against Primal Muscle's usual

Sent in the 8 AM hour, which holds 19% of its emails; 21% arrive in the 9 AM hour. The subject is 47 characters; its average is 33.

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
Dave @ Primal Muscle <[email protected]>
Subject
The IGF-1 edge: Huge gains straight from nature
Date
Fri, 29 May 2026 12:45:11 +0000 (UTC)
Message-ID domain
geopod-ismtpd-83
Return-Path domain
send.primalmuscle.com
DKIM signature
d=primalmuscle.com s=s1
List-Unsubscribe
Present, one-click

Servers it passed through, newest first

  1. from o1334.shared.klaviyomail.com [167.89.105.81] by our receiving server with ESMTPS
  2. by recvd-…-gc9p2 with SMTP
  3. from (unnamed) by geopod-ismtpd-83 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

Jun 3, 2026 8:15 AMTurn junk food into muscle fuel
Jun 2, 2026 8:45 AMThe USSR built monsters with this stuff
May 31, 2026 9:45 AMgym "hack" that feels unfair (but it’s not)
May 29, 2026 8:45 AMThe IGF-1 edge: Huge gains straight from nature (this email)
May 28, 2026 9:31 AMLifting heavy won't fix this
May 27, 2026 9:04 AMHow jacked will you get?
May 26, 2026 8:45 AMBig D energy in a bottle

More from Primal Muscle

All Primal Muscle 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.