Validation you can trust.

Preview text: Clinical research meet natural relief. Explore the data behind our alginate barrier.

Monday, Nov 2, 2026 at 4:51 PM EasternKlaviyo

HartSpanValidation you can trust.

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Subject: Validation you can trust.
Preview text: Clinical research meet natural relief. Explore the data behind our alginate barrier.
From: hello@hartspan.com
Brand: HartSpan
ESP: Klaviyo
Sent: Mon Nov 2, 2026, 4:51 PM ET
Size: 52 KB
Images: 15
Links: 20, 1 of them buttons
Subject length: 25 characters

Against HartSpan's usual

Sent in the 4 PM hour, which holds 24% of its emails; 24% arrive in the 1 PM hour. The subject is 25 characters; its average is 39.

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