Heisen Blue emails

heisenblue.com

Heisen Blue sends about 4 emails a week through Klaviyo, most often on Tuesday around 1 AM Eastern.

Early figures, based on 8 emails received from Oct 17 to Nov 1, 2026.

Emails a week
about 4
Last sent
Yesterday · Nov 1
Tracked since
Oct 2026
Emails collected
8

Recent subject lines

All subject lines

Subject lines average 40 characters. Each one opens the email it came from.

PictureSent (Eastern)SubjectPreview text
Nov 1, 2026 3:34 PMIntroducing Heisen Blue RewardsEarn a point for every $1. Plus 20 bonus points just for following us. NEW · NOW LIVE…
Oct 29, 2026 1:45 AMIf you decide to try our brandFinal step When you’re ready, here’s the next step Hi there, By now you know what proper…
Oct 27, 2026 1:43 AMWhat people wrote after their first orderWhat customers told us It wasn’t excitement. It was relief. Hi there, Something we didn’t…
Oct 24, 2026 1:42 AMWhy Heisen Blue existsBehind the testing Why we built Heisen Blue differently Hi there, After learning how to…
Oct 22, 2026 1:41 AMWhy this isn’t like a typical supplementHow it works Why this compound is discussed differently Hi there, In the last email, I…
Oct 20, 2026 1:40 AMWhen your brain feels tired but you’re not sleepyBefore you decide When focus starts to feel harder than it used to Hi there, One of the…
Oct 18, 2026 1:39 AMBefore choosing a methylene blue brand, read thisBefore you decide What most COAs don’t show Hi there, Most people look for a COA when…
Oct 17, 2026 1:38 AMYour Methylene Blue COA Interpretation Guide (start here)Read with confidence How to interpret a COA Hi there, Here’s the Methylene Blue COA…

All subject lines

About Heisen Blue

ESP
Klaviyo
Tracked since
Oct 2026
Emails collected
8
Emails a week
about 4
Last sent
Nov 1, 2026
Sends from
info@heisenblue.com
Subject length
40 characters avg

Counts include automated emails such as a welcome series.

Similar sending frequency

Latest emailBrandESPWebsite popularityEmails a weekBusiest dayLast sent
** Celloa **us-celloa.comKlaviyoabout 4SundayOct 14, 2026Klaviyo · about 4 a week · busiest Sunday · last sent Oct 14, 2026
100 Cal Snacks100calsnacks.comKlaviyoabout 4WednesdayOct 31, 2026Klaviyo · about 4 a week · busiest Wednesday · last sent Oct 31, 2026
12k padel12kpadel.comKlaviyoabout 4ThursdayOct 29, 2026Klaviyo · about 4 a week · busiest Thursday · last sent Oct 29, 2026
Report an errorLast updated Nov 2, 2026

Get the Black Friday insights

We're collecting every Black Friday email from more than 41,000 brands as it lands. Get what we find: who starts first, the biggest discounts, and the subject lines that stand out.

Free. You'll get a confirmation email first, and you can unsubscribe anytime.