The Building Blocks Behind Collagen
Preview text: Glycine, proline, hydroxyproline and why they matter.
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- Subject
- The Building Blocks Behind Collagen
- Preview text
- Glycine, proline, hydroxyproline and why they matter.
- From
- customersuccess@
op2labs.com - ESP
- Klaviyo
- Sent
- Tue Sep 8, 2026, 6:03 PM ET
- Size
- 57 KB
- Images
- 18
- Links
- 18, 7 of them buttons
- Subject length
- 35 characters
Against ProT Gold Collagen Protein's usual
Sent in its busiest hour, 6 PM, which holds 85% of its emails. The subject is 35 characters; its average is 29.
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
- ProT Gold Collagen Protein <[email protected]>
- Subject
- The Building Blocks Behind Collagen
- Date
- Tue, 08 Sep 2026 22:03:53 +0000 (UTC)
- Message-ID domain
- geopod-ismtpd-93
- Return-Path domain
- send.op2labs.com
- DKIM signature
- d=op2labs.com s=kl2
- List-Unsubscribe
- Present, one-click
Servers it passed through, newest first
- by recvd-…-jrp75 with SMTP
- from (unnamed) by geopod-ismtpd-93 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
Sent just before and after
| Sep 14, 2026 6:01 PM | Strength is something you maintain | |
| Sep 10, 2026 6:02 PM | What your body uses | |
| Sep 9, 2026 12:29 AM | Still thinking it over? | |
| Sep 8, 2026 6:03 PM | The Building Blocks Behind Collagen (this email) | |
| Aug 31, 2026 6:01 PM | The seventeen grams your morning was missing | |
| Aug 28, 2026 6:05 PM | The only collagen of its kind | |
| Aug 26, 2026 6:01 PM | What a peptide actually is |
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