Peptide Injection Schedule for Beginners — How to Set Up Your First Protocol

You've got your peptides, you've reconstituted them, and now you're staring at a schedule that says "250mcg BID SubQ" and wondering what planet the instructions came from. Setting up your first peptide protocol doesn't have to be complicated — but it does require understanding why different peptides need different timing.

This guide covers how to set up an injection schedule for the most common peptides, from daily compounds like BPC-157 to weekly GLP-1 medications, including how to manage multiple peptides on different timelines.

Why Peptides Need a Schedule

Unlike testosterone (which has a half-life measured in days), many peptides have half-lives measured in minutes to hours. This means:

• Short-acting peptides need to be taken frequently (often daily or twice daily) to maintain therapeutic levels
• Long-acting peptides (like semaglutide with a ~7-day half-life) only need weekly dosing
• Timing relative to food matters for some peptides — growth hormone secretagogues need an empty stomach to work properly
• Consistency matters more than perfection — injecting at roughly the same time each day is more important than hitting the exact minute

Use our half-life visualizer to see exactly how long each peptide stays active in your system and why frequency matters.

Common Peptide Schedules by Compound

Doses shown are common ranges — always follow your provider's specific instructions. Use our peptide reconstitution calculator to convert your dose into syringe units.

How to Set Up Your First Week

Here's a practical approach for your first week on a new peptide:

Stacking: Managing Multiple Peptides

Running multiple peptides on different schedules is where things get complex. Common stacks and how to manage them:

Managing multiple peptides on different schedules is where people slip up

• Regimen tracks each compound separately with its own schedule, reminders, and dose log. See all your active protocols in one view, with separate countdowns for each.

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Storage and Reconstitution Reminders

Peptide storage is unforgiving. Once reconstituted, most peptides degrade quickly if not handled properly:

• Use bacteriostatic water (BAC water), not sterile water. The benzyl alcohol preservative in BAC water extends shelf life from 24 hours to 14-28 days.
• Refrigerate immediately after reconstitution. Store at 36-46°F (2-8°C). Never freeze reconstituted peptides.
• Write the date on the vial. A Sharpie on the vial cap is the simplest system. Don't trust your memory.
• Don't shake — swirl gently. Vigorous shaking can damage peptide bonds and reduce potency.
• Track your vial usage. Knowing how many doses are left in each vial prevents running out mid-protocol.

For detailed reconstitution instructions, see our peptide reconstitution guide or use the peptide calculator to calculate your exact water volume and dose.

What to Track on a Peptide Protocol

• Every injection — compound, dose, time, injection site
• Injection site rotation — especially important if you're injecting daily
• Side effects — nausea, flushing, injection site reactions, headaches
• Progress toward goals — pain levels (for BPC-157/TB-500), weight (for GLP-1), sleep quality (for GH peptides)
• Vial tracking — reconstitution date, doses remaining, expiry

Common Beginner Mistakes

When to Adjust Your Protocol

Talk to your provider about adjusting if:

• Side effects don't improve after the first week at a given dose
• You see no response after the expected timeframe (2-4 weeks for most peptides)
• Your goals change (shifting from recovery to performance, or adjusting weight loss targets)
• Blood work indicates something needs attention
• You need to travel and your current schedule is hard to maintain

For more on how peptide cycles work, see our peptide cycling guide and peptide blood work guide.

How Beginners Actually Schedule Their Protocols — Regimen Data

If you are new to peptides and feeling overwhelmed by scheduling, you are not alone. Among Regimen subscribers, 42% self-identify as beginners, and the challenges they report are remarkably consistent. The number one pain point, cited by 58% of users, is tracking cycles — the on/off patterns that many peptide protocols require. Timing individual doses is the next most common challenge at 43%. These are not signs of doing something wrong. Peptide scheduling is genuinely complex, and most tools were not designed to handle it. Across Regimen's active compounds, 13% have cycling configured with defined weeks-on and weeks-off periods, which means cycle management is not a rare edge case — it is something a meaningful share of users need help with from day one.

The good news is that most beginner schedules follow a few common patterns. Among Regimen subscribers, 32% of all active compound schedules are set to daily dosing — the simplest pattern to build a habit around. Another 26% use specific-day schedules (such as Monday, Wednesday, Friday), and 22% follow a weekly schedule. If you are starting your first peptide protocol, chances are it fits into one of these three buckets. The key is picking a tracker that supports your specific schedule type and — just as importantly — handles the cycling component so you know exactly when to start, stop, and restart. Regimen supports all of these scheduling patterns along with full cycle configuration, so you can set your protocol once and follow guided reminders through each phase.

Frequently Asked Questions

Your peptide protocol, organized

• Regimen manages each compound on its own schedule with dose reminders, injection site tracking, and vial expiry alerts. Whether you're running one peptide or five, everything stays in one place.

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