More than ninety guides, all written for this shop and all saying where their numbers come from. None of them is medical advice, and none of the peptides described here is an approved medicine outside the few noted cases.
If you are new to the subject, the first group answers the questions people ask before anything else. The rest go compound by compound.
Start here
- What are peptides and how do they work? - chain length, the difference from a protein, and what "signalling" actually means.
- Which peptide for which goal - seven groups, 33 molecules and the price each one starts from, with a link to every compound.
- Peptides versus proteins - where the line between the two is drawn and why it matters for absorption.
- How to choose peptides for your training goal - which group matches recovery, mass or fat loss, and which claims have no support.
- Peptides in skincare - the four classes used in cosmetics and what each one is supposed to do.
- Recovery peptides: how they work and what to expect - BPC-157 and TB-500 together with the state of the evidence.
- Growth hormone peptides explained - GHRH analogues, GHRP compounds and ghrelin in one map.
- Peptides after 40 - how night-time growth hormone pulses and IGF-1 fall with age, and which molecules target this axis.
- GLP-1 and incretins - how semaglutide, tirzepatide and retatrutide affect body weight.
- Muscle peptides without the myths - the IGF-1 axis, MGF and myostatin blockers.
- How to read a scientific study on a peptide - six things to check in every study: who took part, how many people, how the substance was given, for how long and what was measured.
- Peptides in 2026 research: four new papers - an orthopaedic review, a tendon strength test in rats, a tesamorelin meta-analysis and a gerontology paper, side by side.
Single compounds and comparisons
- BPC-157: what the research shows - animal data, the gap to human data, and the sport ban.
- TB-500 and how it differs from BPC-157 - two mechanisms that are often described as one.
- BPC-157 and TB-500 together - why the pair is sold as a blend and what is known about the combination.
- BPC-157 oral or injected - what the absorption studies say about the two routes.
- Ipamorelin: the clean GHRP - what selectivity means here and what it does not promise.
- CJC-1295 and ipamorelin - why these two are combined more often than any other pair.
- CJC-1295 with DAC or without - half-life, pulse shape and the practical difference.
- GHRP-2, GHRP-6, ipamorelin and hexarelin - four compounds of one class, side by side.
- Hexarelin: what human studies show - growth hormone, prolactin and cortisol in three key papers.
- Growth hormone peptides and sleep - five human EEG studies with doses, figures and group sizes.
- Sermorelin and Mod GRF 1-29 - the older and the newer GHRH analogue.
- Tesamorelin - the one GHRH analogue registered as a medicine, and for what.
- HGH Fragment 176-191 - how a fragment differs from the whole hormone.
- IGF-1 LR3 and DES(1-3) IGF-1 - two modifications of one molecule, two profiles.
- MGF and PEG-MGF - what mechano growth factor is and what pegylation changes.
- Follistatin 344 and ACE-031 - myostatin blockers and why the human trials stopped.
- Semaglutide, tirzepatide or retatrutide - three weight loss compounds compared on trial data.
- Why tirzepatide acts on two receptors - GLP-1 and GIP, and what the second one adds.
- Semaglutide and tirzepatide beyond weight loss - heart, kidneys, sleep apnoea and liver in six trials and the FDA decisions that followed.
- Retatrutide, the triple agonist - what the phase 3 programme has shown so far.
- Peptides and appetite - which ones trigger hunger, which barely touch it and which suppress it.
- MOTS-c - a peptide coded in the mitochondrion and its role in metabolism.
- SLU-PP-332 - what the research showed and where the marketing starts.
- NAD and glutathione injections - what human research supports and what it does not.
- Melanotan 2 and PT-141 - two melanocortin peptides, two goals, their registration status and how large the effect was in the registration trials.
- HCG: what the research shows - how chorionic gonadotropin works and what a 5000 IU vial contains.
- PT-141 in men - four erection trials, including men who did not respond to sildenafil.
- MOTS-c, SLU-PP-332 and HGH Fragment 176-191: three metabolic molecules beyond the incretins - strong mouse data and human observations, a molecule that is not a peptide, a fragment tested in humans as AOD9604, and what a milligram of each one costs.
- GHK-Cu (copper tripeptide): what research on skin and healing shows - what studies on collagen and wound healing describe, where the limits of the data lie and what a 100 mg vial costs.
- Melanotan 2 and tanning: how the peptide darkens the skin - how the peptide switches melanocytes to dark pigment, what the first human study measured and how it differs from afamelanotide.
- PT-141 in women: what the libido trials showed - the two RECONNECT trials with 1267 women, the 1.75 mg dose, side effects and how a vial differs from Vyleesi.
- Glutathione and skin: what trials measured on tone and lightening - what capsule and cream trials measured on the melanin index, which body sites lightened most and what is known about injections.
- Sermorelin, Mod GRF 1-29, CJC-1295 and tesamorelin in one table - structure, time in the blood, approval status and the price per milligram of four GHRH analogues side by side.
- HCG in men: testosterone and fertility in studies - how HCG acts on the testes, a meta-analysis of 1673 patients on sperm production and HCG during testosterone therapy.
- BPC-157 for the gut and stomach: what studies showed - why it stays stable in gastric juice, animal studies on the stomach and intestines, and the first human pilot studies.
- BPC-157 and joints and the knee: what the studies showed - the human knee study, ligament research and what is known about safety.
- Hexarelin and the heart: what CD36 receptor research showed - four human studies on heart function and the CD36 receptor, independent of growth hormone.
- Glutathione and the liver: what the studies showed - the pilot study in fatty liver, intravenous glutathione in animals and how to check the liver.
Semaglutide, tirzepatide and retatrutide in detail
- Semaglutide: first results and kilograms lost month by month - how much weight goes in the first 20 weeks and after 68 weeks in STEP 1, and the side effects at the start.
- Tirzepatide results after a month, 3 months and a year - weight lost at week 12, after 9 months and after 72 weeks in SURMOUNT, and the cost in the shop.
- Retatrutide results after a month, 3 months and a year - weight loss after 3, 6 and 12 months and after 80 weeks of TRIUMPH-1.
- Semaglutide doses in trials and what each one achieved - from the 0.25 mg start to 2.4 and 7.2 mg, doses in diabetes and the cost of a week.
- Tirzepatide doses in trials and what each one achieved - what 5, 10 and 15 mg achieved with and without diabetes, and the cost of a week.
- Retatrutide doses in trials and what each one achieved - what 2, 4, 9 and 12 mg achieved, tolerability and the cost of a week.
- Semaglutide after stopping: how to keep the weight off - what STEP 4 showed about continuing versus stopping, and what helps keep the result.
- Tirzepatide after stopping: can a lower dose keep the weight off - SURMOUNT-4 and SURMOUNT-MAINTAIN on stepping down to a lower dose.
- Semaglutide and muscle: how much of the weight lost is fat - how much of the lost weight is fat, the SEMALEAN study and how to protect muscle.
- Tirzepatide and muscle: how much of the weight lost is fat - DXA and MRI results from SURMOUNT-1 and how to protect muscle during treatment.
- Semaglutide and type 2 diabetes: what the SUSTAIN trials showed - HbA1c in the SUSTAIN programme, four comparator medicines and the heart in SUSTAIN 6.
- Tirzepatide and type 2 diabetes: what the SURPASS trials showed - HbA1c in the five SURPASS trials, compared with semaglutide and insulin.
- Retatrutide and type 2 diabetes: what the trials showed - HbA1c and body weight in phase 2, TRANSCEND-T2D-1 and TRIUMPH-2.
- Semaglutide and tirzepatide and prediabetes: what the trials showed - progression to diabetes over three years on tirzepatide and normal blood sugar on semaglutide.
- Semaglutide and tirzepatide and blood pressure: what the trials showed - how much systolic pressure fell in SURMOUNT, SURPASS and STEP.
- Retatrutide and fatty liver: what studies showed - how much liver fat fell after 24 and 48 weeks of the phase 2 trial and how it compares with semaglutide and tirzepatide.
- Retatrutide and the kidneys: what the trials showed - urine protein and kidney filtration in the phase 2 analysis, and the kidney trials under way.
- Semaglutide and retatrutide and knee pain: what STEP 9 and TRIUMPH showed - knee pain in STEP 9, TRIUMPH-4 and TRIUMPH-1.
- Semaglutide and alcohol: what research on the urge to drink showed - two placebo-controlled trials on alcohol craving and heavy drinking days.
- Semaglutide tablets or injections: what the trials showed - weight loss on the 50 mg tablet and the 2.4 mg injection, absorption and tolerability.
Handling, dosing units and measuring results
- How to reconstitute a peptide - bacteriostatic water, step by step, with the arithmetic.
- Bacteriostatic water and water for injection - what the benzyl alcohol changes.
- How to store peptides - lyophilised powder and reconstituted solution have different rules.
- Why a peptide handles shipping without a fridge - what storage studies measured and what to do with the vial on arrival.
- Converting an amount into insulin syringe units - the calculation that causes the most mistakes.
- IU and milligrams - why an international unit measures activity, not mass, and how to read the label.
- Routes of administration - oral, nasal or injected, and what studies measured for each.
- How long a peptide stays in the body - half-lives from human studies, from two hours to over a week.
- How to measure results - IGF-1, lean mass and waist circumference, and how often to repeat them.
- The certificate of analysis - what 99 per cent purity means and why 10 mg on the label includes water.
- How to spot a genuine peptide - the code under the hologram, the certificate of analysis and six things to check before you buy.
Law, sport and injuries
- The legal status of peptides - prescription medicine, research material and the difference between them.
- Why BPC-157 and TB-500 are banned in sport - the WADA list and the categories it uses.
- Why semaglutide and tirzepatide are prescription-only - what the registration actually covers.
- Peptides and tendon and ligament injuries - what the studies show and what they do not.
Choosing and buying
- Your first peptide order - the molecule, a place in the fridge, bacteriostatic water and a syringe, with shipping costs.
- Bio-Peptide, Genheal and Nouveaux Ltd compared - vial sizes, catalogue width and verification.
- What determines the price - milligrams, brand and form, and why price per vial misleads.
- Ready-made blends in one vial - seven blends with prices in EUR, and why one vial costs less than two packs.
- How long a GLP-1 vial lasts - weeks and cost per week for semaglutide, tirzepatide and retatrutide, vial and pen side by side.
- Ready-made pen or powder vial - the price per milligram of each form and what the pen gives you.
- The same peptides under different names - the name pairs that confuse most often and how to check what is in your basket.
- BPC-157 5 mg or 20 mg: price per milligram from three brands - the price per milligram from three brands and the sums for 10 to 60 mg, with and without shipping.
- How much does a month of semaglutide, tirzepatide and retatrutide cost - the cost of each dose per month and per year.
Where to go next
- The catalogue - seven groups, 74 products, prices taken straight from the shop.
- Check your product - verify a vial before you use it.
- Legal status and safety - what research material status means where you live.
- Shipping and payments - bank transfer or cash on delivery, international shipping at 30 EUR paid in advance or 80 EUR cash on delivery.
Frequently asked questions
How many guides are there?
More than ninety, all written for this shop, each stating where its numbers come from.
Do the guides give dosing protocols?
No. Where a dose appears, it comes from the protocol of a named study and is marked as such. These are research materials with no established human dose.
Are the guides medical advice?
No. They describe mechanisms, the state of research and regulatory status. Decisions about use belong to a doctor.
Where should a beginner start?
With the basics: what peptides are, which peptide fits which goal, and the practical guides on reconstitution, storage and confirming that a product is genuine.