Peptides
Every peptide we have written about, with what it is and how far the research has come. Use the filters to find what you are looking for.
Showing 12 of 12 peptides
B
- BPC-157Research compound · Training and recovery
A synthetic peptide based on a protein from gastric juice. Studied for the healing of tendons, ligaments and muscles, with many promising animal studies.
C
- CJC-1295 and ipamorelinResearch compound · Training and recovery
Two synthetic peptides that make the body release more of its own growth hormone. In studies in healthy adults, growth hormone levels rose two to ten times.
G
- GHK-CuCosmetic ingredient · Skin, ageing and wellbeing
A copper peptide found naturally in the body and an established skincare ingredient, allowed in cosmetics in the EU.
K
- KPVResearch compound · Skin, ageing and wellbeing
Three amino acids from a hormone that calms inflammation. Promising in mice with gut inflammation.
M
- Melanotan IIResearch compound · Skin, ageing and wellbeing
A synthetic version of the hormone that darkens the skin. Studied for tanning and for erections, and now in a new study on vitiligo.
- MOTS-cResearch compound · Weight and metabolism
A small peptide the body makes in its mitochondria. Promising in mice for metabolism and fitness, with the first studies in humans under way.
R
- RetatrutideMedicine in clinical trials · Weight and metabolism
A weekly injection from Eli Lilly that acts on three gut hormones. Large studies show substantial weight loss, and the medicine is in the last phase of clinical trials.
S
- SemaglutideApproved medicine · Weight and metabolism
An approved prescription medicine for type 2 diabetes and overweight. One of the best-studied peptide medicines there is.
- SemaxResearch compound · Skin, ageing and wellbeing
A Russian peptide based on part of the hormone ACTH. Studied after stroke and for its effects on the brain.
T
- TB-500Research compound · Training and recovery
A synthetic fragment of thymosin beta-4, a protein the body uses to repair tissue. Promising in animal studies of recovery and repair.
- Thymosin beta-4Research compound · Training and recovery
A protein the body makes itself and uses to repair tissue. Tested in several placebo-controlled studies in humans with wounds and eye injuries.
- TirzepatideApproved medicine · Weight and metabolism
An approved prescription medicine that acts on two gut hormones. Large studies show substantial weight loss and better blood sugar.
No peptides match the filters
Try fewer filters, or search for another name. If you cannot find the peptide you are looking for, you can suggest it to the editors.
How to use the overview
Here you will find every peptide we have written about, in alphabetical order. Use the filters to see only approved medicines, only substances studied in humans, or the peptides within one topic. Every peptide page follows the same layout, so they are easy to compare: in brief, a fact box, what the substance is and what the research has found.
What does the research stage mean?
Next to each peptide you can see how far the research has come. Every new medicine starts in the laboratory and moves on to studies in humans, so the stage shows where on that path a substance is today. It tells you how much we know, not whether a substance is good or bad.
- Lab and animal studies: the research is at the starting stage, where promising findings lay the groundwork for studies in humans. Examples are TB-500, MOTS-c and KPV.
- Early studies in humans: the first studies in humans have been done, as for BPC-157, GHK-Cu and Semax.
- Controlled studies in humans: the substance has been tested against placebo, like thymosin beta-4.
- Large studies in humans: the substance has been tested in large studies with thousands of participants, like semaglutide, tirzepatide and retatrutide.
Four types of peptide
- Approved medicines, prescribed by a doctor, for example semaglutide and tirzepatide.
- Medicines in clinical trials, tested in large studies but not yet approved, for example retatrutide.
- Cosmetic ingredients and supplements, found in skincare and health food, for example GHK-Cu.
- Research compounds, so far studied mostly in the laboratory, for example BPC-157 and MOTS-c.
Where to start
If you are interested in weight, semaglutide is the best-studied peptide. For recovery, thymosin beta-4 is the peptide tested most in humans.
Questions and answers
Which peptides are best studied?
Approved medicines such as semaglutide and tirzepatide have been tested in large studies with thousands of participants. Many other peptides have been studied in smaller studies or in the laboratory.
Why are many peptides only studied in animals?
Every new medicine starts in the laboratory. Studies in humans take many years and cost a lot, so many promising substances are still on their way there.
Missing a peptide?
Send us a tip through the contact form. We choose new peptides based on what readers want to know.
How often are the peptide pages updated?
Every page is reviewed at least once a year, and more often when important new studies appear. The date is shown at the top of the page.
What people say about Norwegian vendors
Read a detailed comparisonExplore feedback on ordering, delivery and customer support from Norwegian peptide vendors. For education only, with no promotion or recommendations.
- Nova Vita Pharma
Ordered again
Recent reviews sounded consistent with my first order, so I came back. Same item available, securely packed again. Happy with both deliveries.
- Norsk Peptide
Better delivery than website
Comparison selections kept disappearing, product differences were unclear, and the reviews offered little detail. Right item arrived, well packed. Ordering took more guesswork than I liked.
- Nova Vita Pharma
No hassle
Easy on my phone. Familiar payment option, clear total, right item delivered. All good.
- Viking Helse
Too much guessing
Tiny menus, similar options, no useful comparison. Couldn't tell which reviews were recent either. Correct item arrived, thankfully. Choosing it shouldn't be this annoying.
- Artic Peptide
Still unsure
Parcel arrived intact, but I still couldn't find the COA for my batch or clear seller details. Support sent me back to the product page. That didn't answer either question.
- Artic Peptide
Hesitated at checkout
My usual payment method wasn't offered, and the alternatives needed a clearer explanation. Went ahead with a small order; everything arrived. Still want to understand the dispute process before spending more.
- Artic Peptide
Frustrating on mobile
Pop-ups everywhere, similar listings, unclear differences. Got the right item eventually. The vague reviews weren't much help choosing either. Bloody frustrating.
- Nova Vita Pharma
Reassuring first order
Checked the business details, returns policy and recent reviews before ordering. My parcel arrived on time and complete. Support took a day to reply, but answered my question properly.
- Luxxmaxing
Plenty of listings, little guidance
Lots of options, but the filters and descriptions barely explained the differences. Reviews were mostly short praise. My item matched the confirmation; choosing it felt less straightforward than it should.
- Viking Helse
Unclear payment information
Parcel arrived securely packed. Before ordering, I struggled to find currency, fee and payment-dispute information. I budget in NOK; I'd want clearer answers before placing a larger order.
- Norsk Peptide
Leaving it for now
First parcel was fine. Now my item is unavailable, no restock information, and my preferred payment option isn't there. Not confident enough to switch.
- Luxxmaxing
Paperwork didn't settle it
Item arrived sealed. Couldn't match its batch to the COA or work out who handles complaints. Asked for clarification and got a general testing explanation. Still hesitant about another order.
- Nova Vita Pharma
Clear paperwork
The COA reference matched the batch on my item, and the issuing lab was named. Everything arrived sealed and well packed. Easy to find the details I wanted to check.
- Norsk Peptide
Quick answer, wrong question
Delivery was on time. Asked which COA covered my batch and got a generic reply. The seller information didn't resolve it either. Quick support, but I'm still unsure whom to follow up with.
- Nova Vita Pharma
Easy to choose
Good variety, with actual explanations of the differences. What arrived matched my selection. Needed help finding the COA afterwards; support sent the link for my batch.
- Viking Helse
Needed a straight answer
Item arrived intact, but I couldn't understand what the COA covered. Support replied with more jargon, and I couldn't find a clear complaints contact. Left me unsure where to take the question.
- Luxxmaxing
Show payment details earlier
Order arrived complete. Finding payment options and delivery charges beforehand was a pain in the arse. Still wasn't clear what help I'd get with a payment dispute.