How Muscle Booster writes email.
34 emails classified across 9 months, all sent through Reteno (eSputnik). Tracked since Sep 2024. Every hook, framework, offer type and CTA — on the record.
Muscle Booster is one of 339 brands tracked in the BadRep vault, classified under Health & Fitness. We've indexed 34 emails from Muscle Booster since September 2024, sent at a cadence of roughly 3.8/month through Reteno (eSputnik). Their program leans on Promotional sends with Bold Claim hooks; below is everything BadRep has noticed about how they actually write to their list.
- Steady cadence at 3.8 emails/month over 9 tracked months.
- Promotional is the dominant program — 35% of all sends (12 of 34 emails).
- Hook of choice: "Bold Claim" — opens 53% of sends.
- Subject lines average 44 characters, in the sweet spot for mobile preview (~30–50 chars).
- Leans on emoji in subject lines — 24% include one, vs catalog median of 7%.
- Promotionally heavy: 91% of emails carry an offer, with "% Off" the most common format.
What Muscle Booster does on repeat.
Most-used email types
- 01Promotional35%
- 02Upsell / Cross-sell21%
- 03Abandoned Cart18%
- 04Seasonal / Holiday12%
- 05Re-engagement6%
Most-used hook types
- 01Bold Claim53%
- 02Direct Offer41%
- 03Question3%
The last 6 months of Muscle Booster.
Latest send tracked: 32 days ago. Peak month was Feb 26 with 13 emails.
33 more emails inside. All searchable.
A peek at the back catalog. Subscribers see them in full — every screenshot, raw HTML, full classification.
Muscle Booster email FAQ.
What email platform (ESP) does Muscle Booster use?
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What types of emails does Muscle Booster send?
What hook types does Muscle Booster use to open emails?
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What offers does Muscle Booster run in email?
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