Research Peptides Peptide Guide

what are peptides

The first synthetic peptide

A peptide is a chemical compound containing two or more amino acids (amino acid polymers) that are coupled by a Peptides Bond . This bond is a special linkage in which the nitrogen atom of one amino acid binds to the carboxyl carbon atom of another.

Peptides are often classified according to the number of amino acid residues. Oligopeptides have 10 or fewer amino acids. Molecules consisting from 10 to 50 amino acids are called peptides. The term protein describes molecules with more than 50 amino acids.

Molecules with molecular weights ranging from several thousand to several million daltons (D) are called polypeptides. The terms polypeptide and protein are frequently used interchangeably.

In 1901, the first synthetic glycyl-glycine (see picture) was discovered by Emil Fischer, in collaboration with Ernest Fourneau. The first polypeptide (oxytocin - nine amino acid sequence) was synthesized by Vincent du Vigneaud in 1953.

Synthetic hormones have a wide range of applications in medicine and biotechnology. They regulate most physiological processes, acting at some sites as endocrine or paracrine signals and at others as neurotransmitters or growth factors.

Insulin was the first therapeutic protein to be introduced to treat insulin-dependent diabetes in the 1920s. There are sixty FDA approved peptide drugs in the market. About 140 these drugs are in clinical trials and over 500 are in pre-clinical development.

A number of these research chemicals are used for diagnostic purposes, for example C-peptide is used to monitor insulin production and to help determine the cause of low blood sugar (hypoglycemia).

These chemicals are synthesized by coupling the carboxyl group or C-terminus of one amino acid to the amino group or N-terminus of another. There are two strategies for synthetic hormone synthesis: liquid-phase synthesis and solid-phase synthesis (SPPS).

The goal of this project is to collect all information about peptides and their synthesis in one place.

Latest blog posts

Effectiveness of GHRH (CJC-1293, CJC-1295 DAC, MoD GRF 1-29)

Several studies involving CJC-1295 DAC have shown promising results regarding the increase of hGH (human Growth Hormone) in both men and women. The results were so good in fact that CJC-1295 DAC is pretty much the equivalent to Modified GRF 1-29. Here are some of the findings of the studies i...

Studies Show Online Peptide Retailers Donít Deliver What They Promise

Melanotan II products have been sold all over the internet to increase the skinís ability to tan for quite some time now. This product, which works by increasing brown-black eumelanin synthesis, darkens the skin when exposed to sunlight. It has also been nicknamed the Barbie-drug as a possible sid...

FDA and their view on Melanotan

Melanotan II has a lot of benefits, but for some reason the FDA still wonít put it on the market in the USA, because it causes skin cancer they say. Yes, the drug that is being used to prevent skin cancer in Europe is banned in the USA because, from their research perspective, it causes cancer. W...

The Actual Rules for the Use of Research Peptides (USA)

Yip, I contacted the FDA. It took ages to get the exact information I need, and Iím still waiting to hear back from the Medicines and Healthcare products Regulatory Agency in the UK for the full scope on the laws as they apply over thereÖ But for those of you who have been doing endless searches t...

New Delivery-Boy in Town

Science Daily recently posted an article about a brand new product that has been developed to deliver other drugs right into your cells. While the article and research is mostly aimed at combating disease and cancer I really think this little mister will benefit the bodybuilding scene as well. ...
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latest forum posts

  • Iflexit

    I'm planning on running 200mcg of CJC1295 and GHRP6 4x daily: at wake-up, before lunch (3 ...

    questions about timing of

    04-28-2017 07:25 pm

  • sorn

    If you set the calculator found at -

    issue with calculator, or am i

    04-28-2017 06:13 pm

  • stuplz

    I have never heard that any of the growth hormone types ( , real deal, sarms) woul...

    does gh affect fertility?

    04-28-2017 01:26 pm

  • Fabio

    Haha thanks.. Yeah I put it enirely in so I guess everything I did everything right. I don...

    think i messed up

    04-28-2017 01:18 pm

  • sunnys

    I don't really understand your question.. So you injected in fat instead of subq? :D Subq ...

    think i messed up

    04-28-2017 01:06 pm

  • captainamerica

    Did you stick the needle entirely in? If yes then you are fine. It's quite impossibe to me...

    think i messed up

    04-28-2017 12:55 pm

  • Fabio

    Is it possible to mess up subcutaneous injection? If it goes deeper then it alright bec...

    think i messed up

    04-28-2017 12:45 pm

  • DrMuscle

    Alright guys, thanks for all the help. I will reuse it an make sure to clean everything wi...

    reusing needle twice?

    04-28-2017 12:23 pm

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