New to peptides? Good place to start.
No jargon, no hype. These guides are written for the woman who wants to understand what the research actually says before she does anything else.
A note on what this is (and isn't): Peptide Price Lab is a research tool. Everything here is drawn from published science, not personal testimonials or marketing. We don't tell you what to do — we help you understand what's known, what's not, and what questions to ask.
Where everyone should begin.
GLP-1, GLP-2, GLP-3: What These Terms Actually Mean
You've probably heard Mounjaro called a 'GLP-2' and Retatrutide called a 'GLP-3.' The numbering looks like a drug generation ladder. It isn't, and the actual biology matters for reading new research accurately.
GLP-1s — What Everyone Is Talking About
Semaglutide, tirzepatide, retatrutide. The GLP-1 class is the most-discussed peptide family right now. Here's what they are, how they work, and what the research actually shows, without the breathlessness.
How to Read a Research Notes Page
The research notes on this site are dense by design. This guide walks you through how to read one, what the citations mean, and how to tell strong evidence from early-stage findings.
How to Research Peptides on Your Own
You don't need a concierge doctor or a science degree to research this well. Here's how to build your own education, weigh what you read, and know when it's time to bring in a professional.
Peptides in Women's Research
A practical guide to research peptides studied for skin aging, weight management, hormonal health, and longevity. Clear information, no gym framing.
Research Peptides vs. FDA-Approved Compounds
There's an important difference between a peptide sold for research and one prescribed by a doctor. Understanding that distinction tells you a lot about how to read the evidence and what questions to ask.
What Are Peptides, Really?
Peptides are everywhere in your body already. They're how your cells talk to each other. Here's a plain-language explanation of what they are, how they differ from proteins and hormones, and why researchers are so interested in them.
The practical questions, answered.
Bac Water and Syringe Math: How to Calculate Your Draw
Once you know a dose, you still have to figure out how much to pull into a syringe. Here's the math, step by step, with real examples.
Can You Draw Two Peptides Into the Same Syringe?
If your protocol calls for two peptides at the same time, you can usually combine them in one syringe and inject once. Here is how to know when it is safe and how to do it correctly.
How Peptide Dosing Is Communicated in Research
Research papers don't say 'take this much.' They report what subjects received in studies. Here's how to read that language so you know what you're looking at.
How to Calculate Peptide Price Per Mg (And Why Vial Price Misleads)
Two vendors. Two prices. Same peptide. Without knowing what you're paying per milligram, there's no way to know which is actually cheaper. Here's the formula, and where the comparison gets more complicated.
How to Evaluate a Research Peptide Vendor
The research peptide market is unregulated, which means quality varies enormously. Here is what to look for, what to avoid, and how to read the documents that actually tell you what is in the vial.
How to Store Peptides: Shelf Life, Refrigeration, and Reconstitution
Lyophilized peptides stay stable in the freezer for up to two years. Once you reconstitute them with bacteriostatic water, you have two to four weeks; use sterile water and that window shrinks to a few days.
Peptides for Sleep: What Researchers Are Studying
Growth hormone drops with age and perimenopause, and those drops are closely connected to the sleep disruption many women experience. Here's what researchers are studying about it.
What Are Nootropics?
Nootropics are compounds studied or used for cognitive benefits. The word shows up often in peptide research because several peptides target the same brain pathways researchers in both fields care about.
Where to Buy Bacteriostatic Water Now That Amazon Is Out
Amazon pulled BAC water from its marketplace in early 2026. Here's what bacteriostatic water actually is, what to look for when evaluating a source, and where researchers are buying it now.
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Head-to-head comparisons.
AOD-9604 vs. Semaglutide
Both get mentioned for fat loss, but they aim at completely different targets and sit at opposite ends of the evidence spectrum. One acts on appetite with strong trial support; the other targets fat metabolism with much thinner human data.
BPC-157 vs. TB-500
Both are studied for healing and recovery, and they're often discussed as a pair. But they repair tissue through different mechanisms, and one acts locally while the other acts body-wide.
CJC-1295 + Ipamorelin vs. Sermorelin
One uses two peptides through two different doorways for a bigger combined release. The other uses one peptide and keeps things simple. Here's whether the extra complexity earns its keep.
CJC-1295 vs. Sermorelin
Both are GHRH analogs that ask your pituitary to release more growth hormone. The real difference is how long each one keeps asking, and that changes everything from dosing to how natural the effect feels.
CJC-1295 With DAC vs. Without DAC
They share a name and sit side by side on vendor pages, but adding DAC turns a peptide that lasts minutes into one that lasts days. It's the most consequential small label in this corner of the market.
DSIP vs. Epithalon
Both are older, well-known research peptides tied to the pineal gland and the sleep-wake cycle, but they were studied for different outcomes. One is discussed for sleep architecture; the other for telomere biology and longevity signaling.
Epitalon vs. GHK-Cu
Both wear the anti-aging label, but they attack aging from opposite directions. One is studied for cellular and longevity signals deep in the body; the other for visible skin and tissue repair. They're less alternatives than two separate conversations.
GHK-Cu vs. Matrixyl
Both are peptides studied for firmer, smoother skin, and both signal your skin to make more collagen. But one is a copper-carrying repair molecule and the other is a gentle cosmetic workhorse, and that shapes how you'd actually use each.
HGH vs. GH Peptides
Both aim at the same thing: more growth hormone activity in your body. One delivers the hormone directly. The other asks your own pituitary to make more. That single difference shapes almost everything else.
Ipamorelin vs. GHRP-6
Both trigger a growth hormone release through the same doorway, but one does it cleanly and the other comes with side effects you can feel. The difference is selectivity.
Ipamorelin vs. Sermorelin
Both are gentle, beginner-friendly ways to nudge your own growth hormone, but they work through different doorways. That makes them less rivals than teammates, which changes how you should think about choosing.
Semaglutide vs. Tirzepatide
Both are the household names of the GLP-1 world, and both reduce appetite and body weight. The difference is that one targets a single receptor and the other targets two, and that extra target shows up in the results.
Semaglutide vs. Tirzepatide vs. Retatrutide
You've heard these three names tossed around like they're basically the same thing with different price tags. They're not. Each one adds a receptor the last one didn't have, and that difference is exactly what you're paying for.