47% better cognitive performance. Clinically proven.

Preview text: The study behind the number, and the frames that make it real.

Sunday, Apr 26, 2026 at 11:00 AM EasternKlaviyo

Felix Gray47% better cognitive performance. Clinically proven.

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Subject: 47% better cognitive performance. Clinically proven.
Preview text: The study behind the number, and the frames that make it real.
From: hello@felixgray.com
Brand: Felix Gray
ESP: Klaviyo
Sent: Sun Apr 26, 2026, 11:00 AM ET
Sent to: felixgray.com
Size: 42 KB
Images: 9
Links: 11, 4 of them buttons
Subject length: 52 characters

Against Felix Gray's usual

Sent in its busiest hour, 11 AM, which holds 23% of its emails. The subject is 52 characters; its average is 37.

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