What biotin does for hair health
Preview text: The B vitamin behind the buzz

Use this example
- Subject
- What biotin does for hair health
- Preview text
- The B vitamin behind the buzz
- From
- customers@
rainbownutrients.com - Brand
- Rainbow Nutrients
- ESP
- Klaviyo
- Sent
- Tue Sep 22, 2026, 6:02 PM ET
- Size
- 43 KB
- Images
- 14
- Links
- 16, 2 of them buttons
- Subject length
- 32 characters
Against Rainbow Nutrients's usual
Sent in the 6 PM hour, which holds 6% of its emails; 44% arrive in the 1 PM hour. The subject is 32 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
- Rainbow Nutrients <[email protected]>
- Subject
- What biotin does for hair health
- Date
- Tue, 22 Sep 2026 22:02:48 +0000
- Message-ID domain
- klaviyomail.com
- Return-Path domain
- k3.send.rainbownutrients.com
- DKIM signature
- d=shared.klaviyomail.com s=def1; d=send.rainbownutrients.com s=mtd1
- List-Unsubscribe
- Present, one-click
Servers it passed through, newest first
- from (unnamed) by kmta-mta-green-….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-Message, X-Kmail-Ops, X-Report-Abuse
Sent just before and after
| Sep 28, 2026 1:03 PM | Give your hair a morning head start | |
| Sep 26, 2026 2:30 PM | Hair support works from the inside out | |
| Sep 24, 2026 1:31 PM | How long do supplements take to work? | |
| Sep 22, 2026 6:02 PM | What biotin does for hair health (this email) | |
| Sep 20, 2026 1:04 PM | Hair changes after 40, not your identity | |
| Sep 18, 2026 7:32 PM | Your hair advice is still saved | |
| Sep 16, 2026 12:45 PM | The man in the mirror gets a vote |
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