Everyone's talking about peptides. Finally, a place that makes sense of them.

Whether you're curious about what peptides can do, just got your first prescription, or running a full protocol, pepguide.ai gives you the research, the tools, and the confidence to make your own decisions.

Free. Takes 2 minutes. We don't sell peptides.

Sound familiar?

"Everyone seems to know about this except me"

Your feed is full of transformations, your coworker mentioned their protocol, and you're still trying to figure out what a peptide even is. Start with our 2-minute quiz and we'll show you what's relevant to your goals.

Take the quiz →

"I just got prescribed this and I'm terrified of messing it up"

You're holding a vial and a syringe and the internet is giving you 50 different answers. You need ONE clear, research-backed source. Read the compound guide for exactly what you were prescribed.

Find your compound →

"I'm on a protocol but I have no idea if it's actually working"

You're tracking doses in a notes app, you forgot if you injected Tuesday or Wednesday, and you can't tell what's making a difference. Build your protocol profile and get organized.

Build your profile →

Built for every day, not just day one

pepguide.ai isn't a reference you check once. It's the tool you open every morning, every injection, every doctor's visit.

"Did I take my shot this week?"

Never wonder again. Log every dose in seconds, see your full history, and get reminders before you're due. Your protocol stays on track even when life gets busy.

Today's Doses
Tirzepatide 5mg
Done
GHK-Cu 3mg
8:00 PM
BPC/TB 750mcg
9:00 PM
Streak: 14 days on protocol

"Is this actually working?"

Track your weight, body fat, and measurements over time. See the trend line, not just today's number. Know that your protocol is performing based on real data, not guesswork.

Weight Progress
JanFebMar
-72.2 lbs on track

"My stomach has been off for 3 days. Is that normal?"

Ask your AI advisor anything about your compounds and get a real answer with citations. Not a chatbot. A knowledgeable friend who's read the research so you don't have to.

I've had nausea for 3 days since increasing to 5mg tirz. Normal?
Yes, this is common. GI side effects typically peak during dose escalation and improve within 1-2 weeks. Eating smaller meals, staying hydrated, and avoiding high-fat foods before injection can help. If it persists beyond 2 weeks, talk to your provider about staying at your current dose longer. Source: SURMOUNT-1 trial (NEJM 2022)

🩸 "I got my blood panel back. What do these numbers mean?"

Upload your lab results and get a plain-English breakdown of what changed, what's in range, and what to discuss with your doctor. Your data, connected to your protocol timeline.

Bloodwork Analysis
A1C: 5.9%
Improved
Total T: 847 ng/dL
In Range
Estradiol: 52 pg/mL
Elevated
Liver (ALT): 28 U/L
Normal
Estradiol trending up since last panel. Consider discussing injection frequency with your provider.

"What do I take on which days?"

See your entire protocol on a calendar. Which compounds, which days, which doses. No more mental math. No more checking your notes app at 9 PM wondering what's next.

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Tirz
TRT
Today

"How many units is 250mcg again?"

Reconstitution math you can trust. Enter your vial size, BAC water, and desired dose. Get the exact units to draw. No guessing, no Reddit calculator posts, no anxiety about getting it wrong.

Reconstitution Calculator
Vial content
10 mg
BAC water added
2.0 mL
Desired dose
250 mcg
Concentration
5 mg/mL
Units per dose
5 units
Doses per vial
40 doses

How It Works

1

Tell us what you want to achieve

Weight loss, more energy, better sleep, faster recovery? Pick your goals and we'll match you with the compounds that the research actually supports.

2

Get a personalized protocol

Not generic advice. A specific recommendation based on your goals, your situation, and your constraints. With dosing, timing, and links to the full research.

3

Learn, track, and stay confident

Read the research on every compound. Track your doses and body composition. Know that what you're doing is backed by evidence, not Reddit threads.

Why people trust pepguide.ai

RESEARCH-BACKED

Real citations, not bro science

Every compound guide links to published studies. We tell you what the evidence says and where the gaps are. No hype.

🚫 WE DON'T SELL PEPTIDES

No hidden agenda

We're not a pharmacy, a clinic, or a supplement brand. We have zero financial incentive to recommend one compound over another.

🟢🟡🔴 REGULATORY STATUS

Know what's legal and what's not

Every compound is clearly marked: FDA-approved, compounding-legal, or research-only. No surprises.

Free Weekly Newsletter

Pep Guide Weekly

One peptide deep-dive. Regulatory updates that actually matter. A quick tip you can use this week.

Every Tuesday. Read in 4 minutes.

No spam. No sales pitches. Unsubscribe anytime.

Choose your plan

Not sure where to start? Neither were we.

Take the 2-minute quiz. Tell us your goals. We'll show you exactly which peptides the research supports for what you're trying to do. No signup required.

Take the Quiz
Essentials
Track
$9.99/month

All the tools. Run your protocol with confidence.

  • Full compound library (22+ guides with citations)
  • Dose tracker with reminders and streaks
  • Protocol planner with calendar view
  • Body composition tracking and charts
  • Reconstitution calculator
  • AI chat for compound questions
  • Regulatory status tracking
Monthly
Yearly Save 50%
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Built by someone who actually uses peptides

Brennan Decker, founder of pepguide.ai
Brennan Decker
Founder, pepguide.ai

I started at 302 pounds. I tried every diet, every app, every approach. Nothing stuck until I found peptide therapy and paired it with the same discipline I use running products at Fortune 500 scale.

Within months, I'd lost over 70 pounds. Not through some magic solution, but through a systematic, data-driven approach to my protocol. I tracked every dose, every measurement, every blood marker.

The problem? I was doing all of this in spreadsheets and Reddit threads. There was no single place to track my protocol, understand my compounds, and make informed decisions. So I built one.

pepguide.ai will never sell you a single peptide. It exists to give you the research, the tools, and the confidence to make your own decisions.

Frequently Asked Questions

Is pepguide.ai medical advice?

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No. pepguide.ai is an educational tool and tracking platform. We provide research-based information but are not a substitute for professional medical advice. Always consult your healthcare provider before starting any peptide protocol.

What peptides do you cover?

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22+ compounds and growing. We cover GLP-1s, healing peptides, growth hormone secretagogues, cognitive enhancers, and more. Each entry includes mechanisms of action, research citations, common protocols, and regulatory status.

Do you sell peptides?

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No. We will never sell compounds. We are an independent education and tracking platform with no financial interest in peptide sales or vendor recommendations.

Can I use this on my phone?

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Yes. pepguide.ai is built mobile-first and works perfectly on all devices. A dedicated native app is coming soon.

How is the AI different from ChatGPT?

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Our AI is trained on curated peptide research and your personal protocol data. It gives specific, cited answers tailored to your compounds and history, not generic responses.

What if I'm just starting?

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Perfect. Our beginner guides and knowledge base are designed for people who are brand new to peptides. We explain everything in plain English with no assumptions about prior knowledge.