Why caffeine feels different with L-theanine
Preview text: The science behind smooth focus—and the ratio Rivox uses.
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- Subject
- Why caffeine feels different with L-theanine
- Preview text
- The science behind smooth focus—and the ratio Rivox uses.
- From
- hello@
rivoxlabs.com - Brand
- Rivox Labs
- ESP
- Klaviyo
- Sent
- Thu Sep 10, 2026, 12:10 PM ET
- Size
- 40 KB
- Images
- 4
- Links
- 6, 2 of them buttons
- Subject length
- 44 characters
Against Rivox Labs's usual
Sent in the 12 PM hour, which holds 12% of its emails; 24% arrive in the 4 PM hour. The subject is 44 characters; its average is 41.
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- From
- Rivox Labs <[email protected]>
- Subject
- Why caffeine feels different with L-theanine
- Date
- Thu, 10 Sep 2026 16:10:08 +0000
- Message-ID domain
- klaviyomail.com
- Return-Path domain
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Sent just before and after
| Oct 1, 2026 11:30 AM | The caffeine number most people get wrong | |
| Sep 24, 2026 11:31 AM | Your caffeine lasts longer than the buzz | |
| Sep 17, 2026 11:32 AM | Why your coffee stopped working | |
| Sep 10, 2026 12:10 PM | Why caffeine feels different with L-theanine (this email) | |
| Sep 7, 2026 6:30 PM | Ends tonight: 25% off Rivox | |
| Sep 4, 2026 10:17 AM | Clock out. Lock in. 25% off sitewide. | |
| Aug 23, 2026 8:11 PM | Try Rivox for $9.99 + Free Shipping |
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Sent the same day by similar brands
Same ESP and the closest weekly volume, sent on Sep 10, 2026.





