# Peptide Reference

> Research-backed peptide database with dosage, half-life, mechanism of action, risks, and peer-reviewed studies from PubMed.

Peptide Reference is a free, comprehensive database covering peptides used in bodybuilding, weight loss, healing, beauty, anti-aging, cognitive enhancement, and hormone health. All information is sourced from peer-reviewed research and presented with specific dosage ranges, half-life data, administration routes, and safety profiles.

## Key Pages

- [Home — Peptide Database](https://peptide-reference.com/): Browse all peptides with search and filtering
- [Reconstitution Guide](https://peptide-reference.com/reconstitution): Step-by-step guide to reconstituting peptides with bacteriostatic water
- [Dosage Calculator](https://peptide-reference.com/calculator): Calculate peptide doses based on concentration and desired mcg
- [Half-Life Calculator](https://peptide-reference.com/half-life-calculator): Visualize blood concentration decay over time based on half-life
- [Unit Converter](https://peptide-reference.com/unit-converter): Convert between mg, mcg, IU, mL, and syringe units
- [GLP-1 Dose Schedule](https://peptide-reference.com/dose-schedule): Week-by-week dose escalation for Semaglutide and Tirzepatide
- [Compare Peptides](https://peptide-reference.com/compare): Side-by-side comparison of any two peptides
- [Storage Guide](https://peptide-reference.com/guides/storage): How to store lyophilized and reconstituted peptides
- [Injection Technique Guide](https://peptide-reference.com/guides/injection-technique): Subcutaneous and intramuscular injection instructions
- [Glossary](https://peptide-reference.com/glossary): Definitions of common peptide terminology
- [Blog](https://peptide-reference.com/blog): In-depth articles and comparisons
- [Editorial Standards](https://peptide-reference.com/editorial-standards): How content is sourced, reviewed, and corrected
- [Medical Disclaimer](https://peptide-reference.com/medical-disclaimer): Educational use only, not medical advice

## Peptides

- [5-Amino-1MQ](https://peptide-reference.com/peptides/5-amino-1mq): A pill that aims to switch fat cells from 'storage mode' to 'burning mode' by blocking an enzyme (NNMT) that is overacti
- [ACE-031](https://peptide-reference.com/peptides/ace-031): An experimental drug that acts as a 'decoy' to intercept myostatin and other muscle-limiting signals before they reach y
- [Acetic Acid](https://peptide-reference.com/peptides/acetic-acid): A dilute sterile acetic acid solution (typically 0.6%) used to dissolve certain peptides that don't dissolve well in pla
- [Adipotide](https://peptide-reference.com/peptides/adipotide): An extreme experimental approach to fat loss — it physically destroys the blood vessels that feed fat tissue, starving f
- [AEDG Peptide](https://peptide-reference.com/peptides/aedg): A tetrapeptide (Ala-Glu-Asp-Gly) identical to Epithalon's core active sequence — effectively the same compound. Studied 
- [AICAR](https://peptide-reference.com/peptides/aicar): A natural compound that activates your cells' energy sensor — the same pathway that turns on during exercise. Mimics the
- [Alprostadil](https://peptide-reference.com/peptides/alprostadil): A medication that treats erectile dysfunction by relaxing the blood vessels in the penis, allowing blood to flow in and 
- [Amycretin](https://peptide-reference.com/peptides/amycretin): Novo Nordisk's next-generation weight loss drug — the first single molecule that combines two appetite hormones (GLP-1 a
- [AOD-9604](https://peptide-reference.com/peptides/aod-9604): A small piece of human growth hormone (amino acids 176-191) designed to keep only the fat-burning effects while removing
- [Ara-290](https://peptide-reference.com/peptides/ara-290): A peptide derived from EPO (the hormone that boosts red blood cells) but engineered to keep only the tissue-protective e
- [AT7687](https://peptide-reference.com/peptides/at7687): A novel obesity drug from Danish biotech Antag Therapeutics that takes a completely different approach — instead of supp
- [Bacteriostatic Water](https://peptide-reference.com/peptides/bacteriostatic-water): Sterile water with preservative (0.9% benzyl alcohol) that prevents bacteria from growing. The standard liquid used to d
- [Botulinum Toxin](https://peptide-reference.com/peptides/botulinum-toxin): A toxin produced by bacteria — the most potent biological toxin known, yet one of the most widely used cosmetic and medi
- [BPC-157](https://peptide-reference.com/peptides/bpc-157): A healing compound made from a protein found in stomach fluid. It's the most studied peptide for tissue repair, with res
- [BPC-157 + TB-500](https://peptide-reference.com/peptides/bpc-tb): A two-in-one product that pairs BPC-157 and TB-500 to target different healing pathways. BPC-157 focuses on gut, tendon,
- [Bronchogen](https://peptide-reference.com/peptides/bronchogen): A Khavinson tetrapeptide (Ala-Glu-Asp-Leu) developed in Russia as a tissue-specific bioregulator targeting the lungs and
- [Cagrilintide](https://peptide-reference.com/peptides/cagrilintide): A long-acting version of amylin, a natural hormone your body releases after eating that tells your brain you're full. It
- [CagriSema](https://peptide-reference.com/peptides/cagrisema): A once-weekly injection that combines two powerful appetite-suppressing drugs — cagrilintide and semaglutide — into a si
- [Cerebrolysin](https://peptide-reference.com/peptides/cerebrolysin): A mix of brain-derived peptides and amino acids from pig brains. Widely used worldwide for stroke recovery, brain injury
- [CJC-1295 (no DAC)](https://peptide-reference.com/peptides/cjc-1295): One of the most popular growth hormone peptides, often called Mod GRF 1-29. Instead of injecting growth hormone directly
- [CJC-1295 + Ipamorelin](https://peptide-reference.com/peptides/cjc-1295-ipamorelin): The most commonly prescribed peptide combination in anti-aging and regenerative medicine. Pairs the GHRH analogue CJC-12
- [CJC-1295 with DAC](https://peptide-reference.com/peptides/cjc-1295-dac): The long-acting version of CJC-1295. After injection it attaches to a protein in your blood (albumin), which keeps it ac
- [Cortagen](https://peptide-reference.com/peptides/cortagen): A short synthetic peptide (Ala-Glu-Asp-Pro) developed by the Khavinson Institute in Russia. Designed to support brain co
- [Crystagen](https://peptide-reference.com/peptides/crystagen): A Khavinson tripeptide (Glu-Asp-Pro) developed in Russia as a tissue-specific bioregulator targeting the thymus and broa
- [CT-388](https://peptide-reference.com/peptides/ct-388): Roche's once-weekly weight loss injection that targets the same two appetite hormones as tirzepatide (GLP-1 and GIP). Or
- [Danuglipron](https://peptide-reference.com/peptides/danuglipron): Pfizer's once-failed attempt at an oral GLP-1 weight loss pill (code name PF-06882961). Despite producing meaningful wei
- [Dermorphin](https://peptide-reference.com/peptides/dermorphin): A powerful opioid peptide first found in the skin of a South American tree frog. It's roughly 30–40 times stronger than 
- [Dihexa](https://peptide-reference.com/peptides/dihexa): A compound derived from angiotensin IV, reported to be extremely potent at enhancing memory and brain plasticity in anim
- [DSIP](https://peptide-reference.com/peptides/dsip): Delta Sleep-Inducing Peptide — a nine-amino-acid peptide originally found in rabbit brain during sleep research. Promote
- [Ecnoglutide](https://peptide-reference.com/peptides/ecnoglutide): A long-acting weekly GLP-1 weight loss injection from Chinese biotech Sciwind Biosciences. Uses a special protein-extens
- [Enclomiphene](https://peptide-reference.com/peptides/enclomiphene): A medication that boosts natural testosterone production by blocking estrogen's feedback signal in the brain. Used in me
- [Epithalon](https://peptide-reference.com/peptides/epithalon): A lab-made peptide based on a natural compound from the pineal gland (a small gland in your brain). It's studied for its
- [EPO](https://peptide-reference.com/peptides/epo): A hormone your kidneys make that tells your bone marrow to produce more red blood cells. More red blood cells means more
- [Follistatin](https://peptide-reference.com/peptides/follistatin): A natural protein that blocks myostatin — your body's built-in limit on how much muscle you can grow. Think of myostatin
- [FOXO4-DRI](https://peptide-reference.com/peptides/foxo4-dri): A peptide designed to selectively kill 'zombie cells' — old, damaged cells that have stopped dividing but stay alive and
- [GDF-8 (Myostatin)](https://peptide-reference.com/peptides/gdf-8): Your body's built-in limit on muscle size. Myostatin is the protein that tells your muscles 'stop growing' — it's the br
- [GHK-Cu](https://peptide-reference.com/peptides/ghk-cu): A naturally occurring copper-binding peptide found throughout the body; levels drop after age 20. The most studied cosme
- [GHRP-2](https://peptide-reference.com/peptides/ghrp-2): The second most powerful growth hormone peptide after Hexarelin, but with a better balance of effectiveness vs side effe
- [GHRP-6](https://peptide-reference.com/peptides/ghrp-6): One of the oldest growth hormone peptides, developed in the 1980s. Known for strong GH release but also extreme hunger —
- [GLP-1](https://peptide-reference.com/peptides/glp-1): The natural appetite hormone that your gut produces after eating — it's what all GLP-1 weight loss drugs (semaglutide, t
- [Glutathione](https://peptide-reference.com/peptides/glutathione): The body's main antioxidant — present in every cell and essential for detoxification, immune function, and protection ag
- [Gonadorelin](https://peptide-reference.com/peptides/gonadorelin): A lab-made copy of the hormone your brain naturally releases to tell your body to make reproductive hormones. When given
- [HCG](https://peptide-reference.com/peptides/hcg): A hormone your body makes during pregnancy that acts like the hormone that tells the testes to produce testosterone and 
- [Hexarelin](https://peptide-reference.com/peptides/hexarelin): The most powerful growth hormone releasing peptide available — it triggers the biggest GH spike of any GHRP. Also unique
- [HGH 191AA](https://peptide-reference.com/peptides/hgh-191aa): Synthetic human growth hormone, identical to what your body naturally produces. FDA-approved for growth hormone deficien
- [HGH Fragment 176-191](https://peptide-reference.com/peptides/hgh-fragment-176-191): The original, unmodified version of the growth hormone fat-burning fragment — essentially the same concept as AOD-9604 b
- [HMG](https://peptide-reference.com/peptides/hmg): A fertility medication made from hormones extracted from postmenopausal women's urine. It contains both the hormones tha
- [Humanin](https://peptide-reference.com/peptides/humanin): A 24-amino-acid peptide naturally produced by mitochondria. Related to MOTS-c but works differently. Protects cells agai
- [Hyaluronic Acid](https://peptide-reference.com/peptides/hyaluronic-acid): A naturally occurring substance found in connective tissue, skin, and joint fluid throughout the body. It holds moisture
- [IGF-1](https://peptide-reference.com/peptides/igf-1): Insulin-like Growth Factor 1 — the 70-amino-acid peptide hormone that serves as the primary mediator of growth hormone's
- [IGF-1 LR3](https://peptide-reference.com/peptides/igf-1-lr3): A supercharged version of IGF-1 (a key growth factor your liver produces in response to growth hormone). Modified to sta
- [IGF-DES](https://peptide-reference.com/peptides/igf-des): A naturally occurring short-acting form of IGF-1. Because it acts so briefly (20-30 minutes), it's used for targeted mus
- [Insulin](https://peptide-reference.com/peptides/insulin): The most powerful muscle-building hormone in your body — it drives nutrients (sugar, amino acids) directly into muscle c
- [Ipamorelin](https://peptide-reference.com/peptides/ipamorelin): Considered the safest and most beginner-friendly growth hormone peptide. It stimulates your body to release more growth 
- [KissPeptin-10](https://peptide-reference.com/peptides/kisspeptin-10): A short form of kisspeptin, the hormone that sits at the top of your reproductive hormone system. It directly tells the 
- [Kisspeptin-54](https://peptide-reference.com/peptides/kisspeptin-54): The full-length 54-amino-acid form of kisspeptin — the master regulator of reproductive hormones. More potent and longer
- [Klotho](https://peptide-reference.com/peptides/klotho): A natural anti-ageing protein your body produces, named after the Greek goddess who spun the thread of life. Mice withou
- [KLOW](https://peptide-reference.com/peptides/klow): A four-peptide healing and recovery blend that combines KPV, BPC-157, TB-500, and GHK-Cu in a single injection. Each com
- [KPV](https://peptide-reference.com/peptides/kpv): A small peptide derived from a hormone that regulates skin color. It keeps the strong anti-inflammatory and immune-balan
- [L-Carnitine](https://peptide-reference.com/peptides/l-carnitine): A natural substance your body already makes that acts as a 'shuttle' to carry fat into your cells' energy factories (mit
- [Lemon Bottle](https://peptide-reference.com/peptides/lemon-bottle): A cosmetic fat-dissolving injection from South Korea that is injected directly into stubborn fat areas (like a double ch
- [Lipo-C](https://peptide-reference.com/peptides/lipo-c): A vitamin and amino acid injection commonly offered at weight loss clinics to support fat metabolism. Contains a mix of 
- [Liraglutide](https://peptide-reference.com/peptides/liraglutide): A GLP-1 medication that mimics a natural gut hormone (97% similar to native GLP-1) and is the predecessor to semaglutide
- [Livagen](https://peptide-reference.com/peptides/livagen): A Khavinson tripeptide (Lys-Glu-Asp) developed in Russia as a tissue-specific bioregulator targeting the liver. Promoted
- [LL-37](https://peptide-reference.com/peptides/ll-37): The body's main antimicrobial peptide — a natural part of the immune system that fights bacteria, viruses, and fungi. Be
- [MariTide](https://peptide-reference.com/peptides/maritide): Amgen's monthly weight loss injection — and the only one in late-stage development you only have to take every four week
- [Mazdutide](https://peptide-reference.com/peptides/mazdutide): A weight loss injection that suppresses appetite while also boosting your metabolism and helping your liver burn fat. Ap
- [Melanotan I](https://peptide-reference.com/peptides/melanotan-i): A synthetic version of a hormone that triggers skin darkening. It selectively activates the receptors that produce prote
- [Melanotan II](https://peptide-reference.com/peptides/melanotan-ii): A synthetic peptide that activates multiple hormone receptors at once. It produces skin tanning, increased sexual arousa
- [Melatonin](https://peptide-reference.com/peptides/melatonin): The main hormone your brain makes to control your sleep-wake cycle. It rises in response to darkness and helps you fall 
- [MGF](https://peptide-reference.com/peptides/mgf): A natural 'first responder' peptide that your muscles produce when they're damaged by exercise. It activates dormant mus
- [MK-677](https://peptide-reference.com/peptides/mk-677): The only growth hormone booster you can take as a pill instead of injecting. Also known as Ibutamoren, it mimics the hun
- [MOTS-C](https://peptide-reference.com/peptides/mots-c): A small peptide that comes from your mitochondria (the energy factories in your cells). It acts like an 'exercise mimeti
- [NAD+](https://peptide-reference.com/peptides/nad): A molecule your body needs for hundreds of essential processes — making energy, repairing DNA, and regulating genes. You
- [NN1706](https://peptide-reference.com/peptides/nn1706): Novo Nordisk's answer to retatrutide — a once-daily injection that activates all three of the major appetite and metabol
- [Orforglipron](https://peptide-reference.com/peptides/orforglipron): The first weight loss drug in the GLP-1 class that comes as a daily pill rather than a weekly injection — and unlike Ryb
- [Oxytocin](https://peptide-reference.com/peptides/oxytocin): Often called the 'love hormone' — it plays a big role in bonding, trust, and feeling close to others. Your body makes it
- [P21 (P021)](https://peptide-reference.com/peptides/p21): A small peptide derived from a brain-protecting factor (CNTF). Helps create new brain cells, protects existing neurons, 
- [PEG-MGF](https://peptide-reference.com/peptides/peg-mgf): The practical, longer-lasting version of MGF. A protective coating (PEG) extends its life from 5 minutes to several hour
- [Pemvidutide](https://peptide-reference.com/peptides/pemvidutide): A weekly weight loss injection from Altimmune that targets two hormones (GLP-1 for appetite, glucagon for fat-burning) —
- [Pentosan Polysulfate](https://peptide-reference.com/peptides/pentosan-polysulfate): A compound derived from beechwood. FDA-approved orally (Elmiron) for bladder pain (interstitial cystitis), commonly used
- [Pinealamin](https://peptide-reference.com/peptides/pinealamin): A peptide complex extracted from the pineal glands of young animals (typically calves), developed by Vladimir Khavinson'
- [Pinealon](https://peptide-reference.com/peptides/pinealon): A short three-amino-acid peptide (Glu-Asp-Arg) developed by Russian researcher Vladimir Khavinson as a brain bioregulato
- [PT-141](https://peptide-reference.com/peptides/pt-141): A peptide that boosts sexual desire by acting on the brain's arousal pathways. Unlike pills like Viagra that work on blo
- [Retatrutide](https://peptide-reference.com/peptides/retatrutide): The first weight loss drug to target three appetite and metabolism hormones at once (GIP, GLP-1, and glucagon). In early
- [RG3](https://peptide-reference.com/peptides/rg3): Ginsenoside Rg3 — a bioactive compound derived from Panax ginseng. While not a peptide, it is frequently offered alongsi
- [Selank](https://peptide-reference.com/peptides/selank): A lab-made peptide based on a natural immune-signaling peptide. Developed in Russia to help with anxiety and mental shar
- [Semaglutide](https://peptide-reference.com/peptides/semaglutide): The most widely prescribed weight loss medication in the world, sold as Wegovy and Ozempic. Works by dramatically reduci
- [Semax](https://peptide-reference.com/peptides/semax): A lab-made peptide based on a brain hormone fragment. Developed in Russia and approved there for cognitive problems and 
- [Sermorelin](https://peptide-reference.com/peptides/sermorelin): One of the safest and most studied growth hormone peptides, with the longest track record in clinical use. It was actual
- [SLU-PP-332](https://peptide-reference.com/peptides/slu-pp-332): A compound developed at Washington University that activates estrogen-related receptor alpha. A next-generation exercise
- [SNAP-8](https://peptide-reference.com/peptides/snap-8): A topical peptide marketed as 'Botox in a bottle' — it reduces expression wrinkles by partially blocking the signals tha
- [SS-31](https://peptide-reference.com/peptides/ss-31): A peptide that travels straight to your mitochondria (the energy factories inside your cells). It binds to a key molecul
- [Survodutide](https://peptide-reference.com/peptides/survodutide): A weight loss injection being developed specifically for both obesity and fatty liver disease (MASH). It reduces appetit
- [TB-500](https://peptide-reference.com/peptides/tb-500): A naturally occurring peptide found in nearly all human cells that helps cells move and rebuild. It plays a key role in 
- [TB-500 + BPC-157 + GHK-Cu](https://peptide-reference.com/peptides/tb-bpc-ghk): A three-in-one healing combo that adds GHK-Cu (copper peptide) to the BPC-157 and TB-500 stack. GHK-Cu helps build colla
- [Tesamorelin](https://peptide-reference.com/peptides/tesamorelin): The only growth hormone peptide with active FDA approval — sold as Egrifta for reducing dangerous belly fat (visceral fa
- [Tesamorelin + Ipamorelin](https://peptide-reference.com/peptides/tesamorelin-ipamorelin): A popular combination pairing Tesamorelin (FDA-approved for certain conditions) with Ipamorelin to boost growth hormone.
- [Tesofensine](https://peptide-reference.com/peptides/tesofensine): A medication that blocks reuptake of serotonin, dopamine, and norepinephrine — originally developed for Alzheimer's and 
- [Testagen](https://peptide-reference.com/peptides/testagen): A Khavinson tetrapeptide (Lys-Glu-Asp-Gly) developed in Russia as a tissue-specific bioregulator targeting prostate and 
- [Thymalin](https://peptide-reference.com/peptides/thymalin): A peptide blend extracted from the thymus glands of young animals. The thymus is the gland that helps train your immune 
- [Thymosin Alpha-1](https://peptide-reference.com/peptides/thymosin-alpha-1): A peptide your thymus gland naturally produces. It helps regulate T-cells and dendritic cells — key players in your immu
- [Thymosin Beta-4](https://peptide-reference.com/peptides/thymosin-beta-4): The full-length 43-amino-acid peptide naturally produced by the thymus gland — the parent molecule from which TB-500 is 
- [Thymulin](https://peptide-reference.com/peptides/thymulin): A 9-amino-acid peptide naturally produced by the thymus gland that requires zinc to work properly. Distinct from Thymali
- [Tirzepatide](https://peptide-reference.com/peptides/tirzepatide): Sold as Mounjaro and Zepbound, this is one of the most effective weight loss medications available. It works by targetin
- [Vilon](https://peptide-reference.com/peptides/vilon): A synthetic two-amino-acid peptide (Lys-Glu) designed to support the thymus gland and immune system. Studied for immune 
- [VIP](https://peptide-reference.com/peptides/vip): A natural peptide found throughout the body, especially in the nervous system, gut, and lungs. It widens blood vessels, 
- [Vitamin B12](https://peptide-reference.com/peptides/vitamin-b12): An essential vitamin required for DNA synthesis, nerve function (myelin maintenance), and red blood cell formation. Defi
- [VK2735](https://peptide-reference.com/peptides/vk2735): Viking Therapeutics' once-weekly weight loss injection that, like tirzepatide, hits both the GLP-1 and GIP receptors. In

## Categories

- [BODYBUILDING](https://peptide-reference.com/category/bodybuilding)
- [BEAUTY](https://peptide-reference.com/category/beauty)
- [WEIGHT_LOSS](https://peptide-reference.com/category/weight-loss)
- [HEALING](https://peptide-reference.com/category/healing)
- [ANTI_AGING](https://peptide-reference.com/category/anti-aging)
- [SLEEP](https://peptide-reference.com/category/sleep)
- [SEXUAL_HEALTH](https://peptide-reference.com/category/sexual-health)
- [COGNITIVE](https://peptide-reference.com/category/cognitive)
- [IMMUNE](https://peptide-reference.com/category/immune)
- [METABOLIC](https://peptide-reference.com/category/metabolic)
- [SUPPLY](https://peptide-reference.com/category/supplies)

## Articles

- [BPC-157 vs TB-500: Which Is Better for Healing?](https://peptide-reference.com/blog/bpc-157-vs-tb-500-healing): A detailed comparison of BPC-157 and TB-500 for tissue repair, injury recovery, and healing — covering mechanisms, dosag
- [Best Peptides for Sleep: A Research-Based Guide](https://peptide-reference.com/blog/best-peptides-for-sleep): An evidence-based guide to peptides studied for improving sleep quality — covering DSIP, Melatonin, Selank, and Epithalo
- [Semaglutide vs Tirzepatide: Complete Comparison](https://peptide-reference.com/blog/semaglutide-vs-tirzepatide): A comprehensive comparison of Semaglutide (Ozempic/Wegovy) and Tirzepatide (Mounjaro/Zepbound) for weight loss and diabe
- [Beginner's Guide to Peptides: What They Are & How They Work](https://peptide-reference.com/blog/beginners-guide-to-peptides): A plain-English introduction to peptides — what they are, how they work, common types, administration methods, and what 
- [Best Peptides for Anti-Aging: Research and Evidence](https://peptide-reference.com/blog/best-peptides-for-anti-aging): An evidence-based guide to anti-aging peptides — covering Epithalon, GHK-Cu, SS-31, NAD+, and more with mechanisms, dosa
- [Retatrutide: The Triple Agonist Explained](https://peptide-reference.com/blog/retatrutide-triple-agonist): Everything known about Retatrutide — the first GLP-1/GIP/glucagon triple receptor agonist, with clinical trial results, 
- [CJC-1295 + Ipamorelin: The Best GH Peptide Stack](https://peptide-reference.com/blog/cjc-1295-ipamorelin-stack): A complete guide to the CJC-1295 and Ipamorelin stack — why they're combined, how they work together, dosing protocols, 
- [The BPC-157 + TB-500 + GHK-Cu Healing Stack](https://peptide-reference.com/blog/bpc-tb-ghk-healing-stack): How the triple healing peptide stack of BPC-157, TB-500, and GHK-Cu works together — protocols, dosing, and when to use 
- [Peptide Cycling: How Long to Run and When to Stop](https://peptide-reference.com/blog/peptide-cycling-guide): A practical guide to peptide cycling — why you need to cycle, how long to run each type of peptide, break durations, and
- [Growth Hormone Peptides Compared: Which Is Right for You?](https://peptide-reference.com/blog/growth-hormone-peptides-compared): A side-by-side comparison of the most popular GH-releasing peptides — Ipamorelin, CJC-1295, Sermorelin, GHRP-2, GHRP-6, 
- [Common Peptide Questions Answered](https://peptide-reference.com/blog/common-peptide-questions): Answers to the most frequently asked questions about peptides — storage, mixing, injection, timing, stacking, side effec
- [Peptides for Gut Health: BPC-157, KPV, and LL-37](https://peptide-reference.com/blog/peptides-for-gut-health): A guide to peptides studied for gut healing and intestinal health — BPC-157 for tissue repair, KPV for inflammation, and
- [Weight Loss Peptides Beyond Semaglutide: What's Next?](https://peptide-reference.com/blog/weight-loss-peptides-pipeline): A look at the next generation of weight loss peptides and medications in clinical trials — Retatrutide, Survodutide, Cag
- [MK-677 (Ibutamoren): Dosage, Half-Life & Complete Guide](https://peptide-reference.com/blog/mk-677-ibutamoren-guide): Everything you need to know about MK-677 (Ibutamoren) — its 24-hour half-life, pharmacokinetics, dosing protocols, how i
- [HMG Peptide: Dosage, Half-Life & How It Works](https://peptide-reference.com/blog/hmg-peptide-guide): A complete guide to HMG (Human Menopausal Gonadotropin) — half-life, dosing for fertility and PCT, benefits for men and 
- [How to Store Reconstituted Peptides: Shelf Life Guide](https://peptide-reference.com/blog/how-to-store-reconstituted-peptides): Learn how long reconstituted peptides last, proper storage temperatures, signs of degradation, and common mistakes that 
- [Subcutaneous vs Intramuscular Injection for Peptides](https://peptide-reference.com/blog/subcutaneous-vs-intramuscular-injection-peptides): A practical comparison of subcutaneous and intramuscular injection for peptides — absorption speed, pain, best sites, wh
- [Muscle Loss on GLP-1 Medications: How to Prevent It](https://peptide-reference.com/blog/glp1-muscle-loss-prevention): How to minimize muscle loss while taking Semaglutide or Tirzepatide — the role of protein, resistance training, and pept
- [How to Read a Peptide Certificate of Analysis (COA)](https://peptide-reference.com/blog/how-to-read-peptide-coa): Learn how to read and verify a peptide Certificate of Analysis — what HPLC purity, mass spec, endotoxin levels, and othe
- [Semax vs Selank: Which Nootropic Peptide Is Better?](https://peptide-reference.com/blog/semax-vs-selank-nootropic-comparison): A detailed comparison of Semax and Selank — the two most popular nootropic peptides, covering mechanisms, cognitive bene
- [PT-141 for Women: How Bremelanotide Works](https://peptide-reference.com/blog/pt-141-for-women): A guide to PT-141 (Bremelanotide / Vyleesi) for female sexual dysfunction — how it works, clinical trial results, dosing
- [Peptides for Tendon & Ligament Injuries: The Research](https://peptide-reference.com/blog/peptides-for-tendon-ligament-injuries): An evidence-based guide to using BPC-157, TB-500, and GHK-Cu for tendon and ligament repair — what the research says, pr
- [Semaglutide Side Effects: Week by Week What to Expect](https://peptide-reference.com/blog/semaglutide-side-effects-week-by-week): A week-by-week breakdown of Semaglutide side effects during dose escalation — what to expect at each stage, when side ef
- [Ipamorelin Before Bed: Why Timing Matters for GH](https://peptide-reference.com/blog/ipamorelin-before-bed-timing): Why taking Ipamorelin before bed produces the best results — the science of nocturnal GH release, optimal injection timi
- [Epithalon for Longevity: Telomere Science Explained](https://peptide-reference.com/blog/epithalon-telomere-longevity): A clear explanation of how Epithalon works for anti-aging — telomere biology, telomerase activation, the research eviden

## About

Peptide Reference provides factual, research-backed information for educational purposes. All peptide data includes mechanism of action, dosage ranges, half-life, administration routes, side effects, regulatory status, and links to PubMed studies. Content is not medical advice.