How do I get my guide after I buy?

You pay once, on a secure page hosted by Stripe. Your card details go to Stripe, not to Learn Peptides. The link we email opens My Guides. No password needed.

Are the guides useful if I'm a complete beginner?

Read the Reference Edition first. Then use the shorter Mobile Companion as a quick reference on your phone.

Is this the same information as the Reconstitution Guide?

The Reconstitution Guide covers mixing, measuring and injecting. The Field Guide covers what each compound is, how similar ones differ and what the evidence shows.

Will a guide tell me which peptide to use?

They are references, not personal medical advice. None of them picks a peptide, a dose or a plan for you.

Do I need a guide before I shop at US Precision Peptides?

You can explore products at our partner, US Precision Peptides, without buying anything from Learn Peptides.

What if a guide doesn't help me?

Every guide has a 60-day money-back guarantee. A refund ends your access to that guide. The full terms and refund process are in our Terms.

Learn Peptides guides

Understand the numbers, the names and the evidence.

Three guides you buy once, each for a different question, plus free ways to start learning.

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Cover of The Essential Guide to Reconstitution & Injection

Cover of The Fat-Loss & Metabolic Health Guide

Which guide fits you?

Mixing or injecting soon? Start with the Reconstitution Guide.
Telling similar peptides apart? See the Field Guide.
Comparing fat-loss compounds? See the Fat-Loss Guide.

Digital guides

Pick the guide for your next question.

Digital guide
The Essential Guide to Reconstitution & Injection
For beginners who want to understand the numbers before they mix a vial.
- Vial amounts, concentration and liquid volume
- U-100 syringe units, with worked examples
- Common beginner mistakes and how to avoid them
Includes the Reference Edition, Mobile Companion and Fillable Toolkit.
Public price
$79
One-time purchase. Taxes calculated at checkout.
Reader price$39
For readers who join the free 30-day course or save their results. Available for 14 days.
Get the Reconstitution Guide for $39 with the Free Course
See What's InsideGet the Reconstitution Guide for $79 No course needed. Public price, paid once.
Digital guide
The Peptide Field Guide
For anyone who wants to tell similar peptides, blends and forms apart.
- Organized by the goals people research
- Visual comparisons of names that are easy to mix up
- Studies kept apart from early findings and community reports
Includes the Reference Edition and Mobile Companion.
Public price
$99
One-time purchase. Taxes calculated at checkout.
Guide owner price$49
For readers who already own a Learn Peptides guide.
Already own a guide? Confirm your email
See What's InsideGet the Field Guide for $99
Digital guide
The Fat-Loss & Metabolic Health Guide
For anyone comparing the evidence behind the six compounds in our framework.
- How each compound is thought to work
- The evidence for each one, side by side
- What is still unknown
Includes the Reference Edition, Mobile Companion, Fillable Toolkit and Stack Card.
Public price
$149
One-time purchase. Taxes calculated at checkout.
Guide owner price$79
For readers who already own a Learn Peptides guide.
Already own a guide? Confirm your email
See What's InsideGet the Fat-Loss Guide for $149

Own a guide? Every other guide is cheaper for you in My Guides.

Bundle price

All three Learn Peptides guides

$149

All three guides: $149, $327 if bought separately.

Get All Three Guides for $149

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One-time purchase
60-day money-back guarantee

Taxes calculated at checkout.

Free resources

Start learning for free.

Free 30-Day Course
Become the friend who can explain peptides, not just name them.
One useful lesson a day. Three minutes or less. Start with the basics and build your understanding as you go.
Day 01 / 30Why everyone is talking about peptides
- Free
- 30 lessons
- 3 minutes or less
See the Free 30-Day Course
Free personalized guide
Ready to find your starting point?
Tell us what matters to you. We'll build a personalized guide around your interests.
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- Every source labeled
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Already have a vial? Try the free syringe math check.

60-day money-back guarantee

If a guide does not make the subject clearer for you, ask for a refund within 60 days of purchase. Email info@learn-peptides.com. A refund ends your access to that guide.

Common questions

After your payment is confirmed, we email you a link.

Yes. Each guide starts with the basic terms and builds from there.

No. The two guides answer different questions.

No. The guides explain compounds and evidence. They don't choose for you.

No. You never need to buy a guide first.

You can ask for a refund within 60 days of purchase.

Not sure where to start?

Tell us what matters to you. We'll build a personalized guide around your interests.

Build My GuideStart My Free 30-Day Course

Understand the numbers, the names and the evidence.

Which guide fits you?

Pick the guide for your next question.

The Essential Guide to Reconstitution & Injection

The Peptide Field Guide

The Fat-Loss & Metabolic Health Guide

All three Learn Peptides guides

Start learning for free.

Become the friend who can explain peptides, not just name them.

Ready to find your starting point?

60-day money-back guarantee

Common questions

Not sure where to start?