Everything below concerns freeze-dried powder. We keep the language plain, cite what the science says, and separate well-supported claims from open questions.
Last reviewed on 2025-12-12. Where a claim depends on a specific study, the study is described rather than over-claimed.
BPC-157 is a synthetic peptide of fifteen amino acids, written as GEPPPGKPADDAGLV, whose sequence matches part of a larger protein identified in human gastric juice. That parent protein was described in stomach-secretion research, and the fifteen-residue fragment was named body protection compound, which gives the peptide its common label. Material used in experiments is produced by solid-phase peptide synthesis rather than extracted from tissue. The reported molecular weight is about 1419 daltons, and the chain contains several proline residues, a feature that appears in discussions of its resistance to enzymatic breakdown.
Most published findings come from rodent models, where the peptide has been examined in wound-healing, gastrointestinal-lesion, tendon, and vascular-injury preparations. A smaller number of early human studies have been reported, chiefly in inflammatory bowel conditions, but the public record is short and has not led to marketing approval in the United States or the European Union. Reviewers therefore classify the compound as investigational, and whether animal results carry over to people remains an open question rather than a settled one.
Outside laboratory supply channels, the peptide is sold as a research chemical, a category that carries no requirement to demonstrate purity, identity, or freedom from contamination. Because it is not an approved medicine, products labeled BPC-157 sit in a regulatory gap in many countries, and actual content may differ from the label. Sports organizations list it among prohibited substances, so its presence in an athlete's sample can produce a doping finding regardless of how the material was obtained.
Most published work on BPC-157 comes from animal experiments rather than controlled human trials. Rodent models have examined its effects on gastrointestinal lesions, tendon and ligament injury, and blood vessel formation. These studies are often small and originate from a limited number of research groups, which affects how broadly the findings can be generalized. No large randomized human trial has been reported in the peer-reviewed literature. Discussion of the compound therefore rests largely on preclinical data, and questions about its effects in people remain open rather than settled.
Several mechanisms have been proposed to explain the activity observed in animal models. The most frequently cited involve signaling through vascular endothelial growth factor receptor 2 and modulation of the nitric oxide system. Researchers have also described interactions with protective pathways in the gut lining. These proposed mechanisms appear in the literature as hypotheses supported by preclinical observations, not as confirmed pathways in humans. The precise way the peptide produces its reported effects, and whether those effects carry across species, remain areas of active and unresolved investigation.
| Property | Value | Notes |
|---|---|---|
| Origin | Fragment of a protein found in human gastric juice | Sequence corresponds to a fifteen-residue portion of the parent protein |
| Sequence | GEPPPGKPADDAGLV | Single linear chain, fifteen amino acids |
| Reported molecular weight | About 1419 daltons | Value quoted consistently in supplier and review literature |
| Regulatory status | Not an approved human medicine in the US or EU | Handled and sold as a research chemical |
| Sports status | Listed as prohibited | Falls under non-approved-substance categories in anti-doping codes |
Physical descriptions in supplier documents and papers usually list the compound as a white to off-white powder. It dissolves readily in water and in common aqueous buffers, and solutions are often prepared fresh before an experiment. Molecular mass near 1419 daltons helps verify identity during mass spectrometry. The powder is somewhat hygroscopic, so moisture exposure can alter the measured mass of a sample. Purity is typically reported as a percentage from chromatographic analysis.
BPC-157 is a synthetic fifteen-amino-acid peptide whose sequence is GEPPPGKPADDAGLV. Its name derives from the phrase body protection compound, a term applied to a protein fraction originally detected in human gastric juice. The short peptide is not that full protein; it corresponds to a stable fragment of the larger molecule. Researchers frequently describe it as a pentadecapeptide because it contains exactly fifteen residues. Its neutral molecular mass is approximately 1419 daltons.
The sequence places several glycine and proline residues near the middle, which may influence how the chain folds in solution. The peptide is linear rather than cyclic, and it carries no disulfide bridges. Commercial material is commonly supplied as the acetate salt, although the free base and other counterion forms also appear. Because the term BPC-157 refers to a specific sequence, samples with slight sequence variants are chemically different substances. Published work generally treats the fifteen-residue sequence as the defining structure.
Common synonyms in catalogs include pentadecapeptide BPC 157, BPC157, and the full sequence name. A CAS registry number in the 137525-51-0 range is frequently listed, though the assignment should be verified against the supplier certificate of analysis. The name itself is not a pharmacopoeial designation, and there is no standardized international nonproprietary name. Distinguishing genuine material from related fragments generally requires mass spectrometry, since several truncated sequences share similar chromatographic behavior.
BPC-157 is a synthetic pentadecapeptide whose sequence is commonly given as Gly-Glu-Pro-Pro-Pro-Gly-Lys-Pro-Ala-Asp-Asp-Ala-Gly-Leu-Val. It is described in the literature as a fragment of a larger protein found in human gastric juice, referred to as body protection compound. The peptide was first characterized in the early 1990s by a research group in Zagreb, Croatia. Its molecular formula is C62H98N16O22 and its monoisotopic mass is approximately 1419 daltons.
The molecule carries 15 residues, a molar mass near 1419.5 g/mol, and the formula C62H98N16O22. Its structure features a proline-rich central region, a pair of adjacent aspartic acid residues, and no cysteine. The absence of cysteine means no disulfide bonds can form, which simplifies refolding and reconstitution. Suppliers usually ship the material as a freeze-dried powder that appears white to off-white. It dissolves readily in water and in saline solutions.
Published storage guidance follows general peptide practice rather than product-specific studies. The dry powder is typically kept at minus 20 degrees Celsius, away from light and moisture. Once reconstituted, solutions are generally refrigerated and used over days to weeks, because the aqueous environment slowly promotes hydrolysis and oxidation. Long-term data on degradation rates or breakdown products are sparse. Stated shelf lives from different producers vary widely, reflecting the absence of a shared reference standard.
BPC-157 is a synthetic peptide built from fifteen amino acid residues. Its sequence comes from a larger protein fragment that researchers isolated from human gastric juice and described as a body protection compound. The fragment contains glycine, glutamic acid, five prolines, lysine, alanine, two aspartic acids, leucine, and valine. The number 157 in the name refers to the position of the stretch within the parent protein. Material used in laboratories is manufactured rather than extracted from stomach fluid.
However, he also observed that many other sports exhibit the same coercive structure, including boxing and MMA. Writing in Performance Enhancement & Health in 2024, Dr. Andrew Richardson noted that while the international sporting community responded strongly to the Enhanced Games, academic literature has been more "tempered." Richardson said that the format could represent a shift in sports physiology research and suggested it might reduce social stigma for individuals disclosing performance-enhancing substance use. He further noted that some scholars have cautiously welcomed the concept, provided specific ethical and safety caveats are addressed.
Other commonly used nanoparticle drug delivery systems include niosomes, liposomes, and vesosomes, the compositions of which contribute to different properties of the resulting nanoparticle compared to aquasomes. Niosomes are composed of non-ionic surfactants and bilayer structures, allowing them to encapsulate hydrophilic and hydrophobic drugs. Liposomes are composed of phospholipids and a similar bilayer structure to niosomes, and can deliver toxic or poorly soluble drugs. Vesosomes have a core-shell structure similar to aquasomes, but contain a lipid bilayer core and a polymer shell, while aquasomes consist of a ceramic or polymeric core and a carbohydrate coat. Vesosomes are used for encapsulating imaging agents and aiding in imaging techniques such as MRI.
RNA sequences at lengths of 30 nucleotides, 60 nucleotides, 100 nucleotides, and 140 nucleotides, were capable of catalysis of "the synthesis of three common coenzymes, CoA, NAD, and FAD, from their precursors, 4'-phosphopantetheine, NMN, and FMN, respectively".
== Physicochemical properties == The 20 canonical amino acids can be classified according to their properties. Important factors are charge, hydrophilicity or hydrophobicity, size, and functional groups. These properties influence protein structure and protein–protein interactions. The water-soluble proteins tend to have their hydrophobic residues (Leu, Ile, Val, Phe, and Trp) buried in the middle of the protein, whereas hydrophilic side chains are exposed to the aqueous solvent. (In biochemistry, a residue refers to a specific monomer within the polymeric chain of a polysaccharide, protein or nucleic acid.) The integral membrane proteins tend to have outer rings of exposed hydrophobic amino acids that anchor them in the lipid bilayer. Some peripheral membrane proteins have a patch of hydrophobic amino acids on their surface that sticks to the membrane. In a similar fashion, proteins that have to bind to positively charged molecules have surfaces rich in negatively charged amino acids such as glutamate and aspartate, while proteins binding to negatively charged molecules have surfaces rich in positively charged amino acids like lysine and arginine. For example, lysine and arginine are present in large amounts in the low-complexity regions of nucleic-acid binding proteins. There are various hydrophobicity scales of amino acid residues. Some amino acids have special properties. Cysteine can form covalent disulfide bonds to other cysteine residues. Proline forms a cycle to the polypeptide backbone, and glycine is more flexible than other amino acids.
Sources: en.wikipedia.org
=== Freeze drying (lyophilized) === Donkey milk can be freeze-dried to preserve the biological quality of the milk, and so preserve its nutritional, functional, and cosmetic properties. This is possible because in freeze drying the milk is frozen and brought under vacuum at low temperatures. During this process, the water is removed by sublimation. The result is approximately ten percent of dry matter that is called lyophilized (or freeze-dried) donkey milk. This powder is easy to reconstitute. The lyophilized product has to be packaged without any oxygen. It has a shelf life of two years. Normally it is produced from pasteurized donkey milk so it is ready to use. Analysis of freeze-dried donkey's milk has demonstrated that the natural colour, flavours, nutrients, and bioactive substances of fresh donkey milk are retained. Spray-drying is another way to dry products, in which the milk is heated and vitamins and other important bioactive substances may get lost. In contrast, Freeze-drying does not require chemical preservatives and can be either consumed directly or re-hydrated easily. However, this method for is costly, and is practiced only by a few companies. This product is easy to find in Italy, where it was for the first time put on the market.
2025: Tristan Tan Yi Rui, who was originally condemned to death for trafficking not less than 337.6 grams of methamphetamine, later had his sentence commuted to life imprisonment after President Tharman Shanmugaratnam granted his clemency plea. This marked the first successful clemency plea in 27 years.
== Treatment == The treatment aims to create an environment that allows skin to grow across an ulcer. In most cases, this requires finding and treating underlying venous reflux. The National Institute for Health and Care Excellence (NICE) recommends referral to a vascular service for anyone with a leg ulcer that has not healed within two weeks or anyone with a healed leg ulcer. Most venous ulcers respond to patient education, elevation of the foot, elastic compression, and evaluation (known as the Bisgaard regimen). Exercise together with compression stocking increases healing. There is no evidence that antibiotics, whether administered intravenously or by mouth, are useful. Silver products are also not typically useful, while there is some evidence of benefit from cadexomer iodine creams. There is a lack of quality evidence regarding the use of medical-grade honey for venous leg ulcers. The recommendations for dressings to treat venous ulcers vary between the countries. Antibiotics are often recommended to be used only if advised by the physician due to the emergence of bacterial resistance to antibiotics. This is an issue with venous ulcers as they tend to heal more slowly than acute wounds, for example. Natural alternatives that are suitable for long-term use exist on the market, such as honey and resin salve. These products are considered as Medical Devices in EU and the products have to be CE marked. Sugar has long been known for its effectiveness in wound treatment, notably through the use of honey or powdered sugar.
== WHO prequalified products == The World Health Organization Immunization Devices Prequalification (IMD-PQS) programme maintains a list of immunization cold chain equipment that it has prequalified for procurement and use by national immunization programmes of the WHOs Expanded Programme on Immunization (EPI), including refrigerators. IMD-PQS prequalifies products based on rigorous performance specifications that it develops in collaboration with national immunization programmes and in consultation with product manufacturers, to ensure that products address the specific needs of immunization programmes’ operating environments.
An original recommendation for water intake in 1945 by the Food and Nutrition Board of the U.S. National Research Council read: "An ordinary standard for diverse persons is 1 milliliter for each calorie of food. Most of this quantity is contained in prepared foods." The latest dietary reference intake report by the U.S. National Research Council in general recommended, based on the median total water intake from US survey data (including food sources): 3.7 litres (0.81 imp gal; 0.98 US gal) for men and 2.7 litres (0.59 imp gal; 0.71 US gal) of water total for women, noting that water contained in food provided approximately 19% of total water intake in the survey. Specifically, pregnant and breastfeeding women need additional fluids to stay hydrated. The US Institute of Medicine recommends that, on average, men consume 3 litres (0.66 imp gal; 0.79 US gal) and women 2.2 litres (0.48 imp gal; 0.58 US gal); pregnant women should increase intake to 2.4 litres (0.53 imp gal; 0.63 US gal) and breastfeeding women should get 3 liters (12 cups), since an especially large amount of fluid is lost during nursing. Also noted is that normally, about 20% of water intake comes from food, while the rest comes from drinking water and beverages (caffeinated included). Water is excreted from the body in multiple forms; through urine and feces, through sweating, and by exhalation of water vapor in the breath. With physical exertion and heat exposure, water loss will increase and daily fluid needs may increase as well. Humans require water with few impurities.
Sources: en.wikipedia.org
It is not approved for human use in the United States or the European Union. Clinical material has been studied in a small number of early trials, mainly for inflammatory bowel conditions, and the compound remains investigational. Regulators treat marketed products as unapproved rather than as authorized drugs.
The peptide was named after a protein fraction found in human gastric juice, and the shorter form was called body protection compound. That phrase was shortened to the abbreviation BPC. The number 157 refers to a laboratory designation used in the original isolation work.
Its sequence corresponds to a segment of a protein present in gastric secretions, but the material supplied for research is made synthetically. No commercial product is purified from human or animal tissue. The synthetic route is used because it gives a defined chain length and a reproducible sequence.
It is a chain of fifteen amino acids, referred to as a pentadecapeptide. The sequence is Gly-Glu-Pro-Pro-Pro-Gly-Lys-Pro-Ala-Asp-Asp-Ala-Gly-Leu-Val. It corresponds to a fragment of a protein found in human gastric juice.