Lee Maasen

💪🏼15-Year Personal Trainer & Athlete
🧬 Performance | Recovery | Longevity

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NEWSLETTER

How Long to Stay On a Healing Peptide?

Aug 1, 2026

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5 min read

How Long to Stay On a Healing Peptide?

Muscle, tendon, gut and nerve all heal on different clocks

Lee Maasen
Lee Maasen
Can You Build New Muscle Fibers?

Jul 31, 2026

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5 min read

Can You Build New Muscle Fibers?

What training actually changes, and which peptides work on what you can actually grow

Lee Maasen
Lee Maasen
Peptide Timing for Muscle Recovery: The 72-Hour Window

Jul 30, 2026

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6 min read

Peptide Timing for Muscle Recovery: The 72-Hour Window

What happens hour by hour, and where each peptide belongs

Lee Maasen
Lee Maasen
Blood Flow Is How Peptides Reach the Tissue

Jul 29, 2026

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4 min read

Blood Flow Is How Peptides Reach the Tissue

Why circulation decides how much of your dose actually arrives

Lee Maasen
Lee Maasen
The Best Peptide For Each Goal

Jul 28, 2026

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6 min read

The Best Peptide For Each Goal

Visceral fat, tendons, sleep, brain fog, immunity, skin, muscle, energy

Lee Maasen
Lee Maasen
Your Semaglutide and Tirzepatide Have a Weekly Rhythm. Here's How to Use It.

Jul 27, 2026

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4 min read

Your Semaglutide and Tirzepatide Have a Weekly Rhythm. Here's How to Use It.

Why the back half of your week feels harder, and how to plan around it

Lee Maasen
Lee Maasen
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