Receptor grade IGF

[sicilian659]

I have been researching several peptide sites recently and ran across a company that advertises IGF-1 in a "receptor grade." I have a degree in bio-chem and I called several peptide manufacturers and spoke to several chemists at each company and they told me there is no such thing as receptor grade period. It does not exist on any level and it is a marketing ploy, plain, pure, and simple. I am just seeking the truth has anyone ever purchased "receptor grade" IGF, and was there any difference. Sometimes this gets very confusing for me and maybe someone can help me and guide through the confusion and madness

 

[bluestrm]

The difference in Media Grade and Receptor Grade are purity percentages.
Receptor Grade is 95% or higher.
What companies have you talked with?
BdBio or Gro-Pep?

 

[sicilian659]

Receptor Grade??

I am sorry but i was led to believe that we cannot mention names of companies or manufacturers, and no the companies you named I did not call.

 

[bluestrm]

Well, they are legit manufacturers, so I don't think there would be an issue with the companies I posted.

 

[sicilian659]

Receptor Grade Danger

Please read below and click on the link it will tell you in detail about IGF Receptor Grade and how dangerous it is




IGF-1 insulinlike growth factor Manual

There has been batches of some substance sold as "Receptor grade IGF-1" over the last year or so and here a very serious warning must be given. There is a peptide which is only the receptor binding portion of the IGF-1 molecule, which is a cellular lab ... It has been found that after 30 to 40 days of such a protocol
www.basskilleronline.com/insulinlike-growth-factor.shtm...

 

[Druss]

Please read below and click on the link it will tell you in detail about IGF Receptor Grade and how dangerous it is




IGF-1 insulinlike growth factor Manual

There has been batches of some substance sold as "Receptor grade IGF-1" over the last year or so and here a very serious warning must be given. There is a peptide which is only the receptor binding portion of the IGF-1 molecule, which is a cellular lab ... It has been found that after 30 to 40 days of such a protocol
www.basskilleronline.com/insulinlike-growth-factor.shtm...

link broken heres a good one
IGF-1 insulinlike growth factor Manual

Media Grade: This is the more usual grade of Long R3 IGF-1 that you see on the market. It is about 95% pure IGF-1 with some other incomplete peptides in it. And since the dose of IGF-1 is so small, the maximum 5% impurities of media grade represent a truly tiny amount. And the meaning of impurities in this context is simply some amino acids, either loose or in peptide form. In all likelihood that 5% of non-IGF-1 peptides is truly harmless.

Receptor Grade: Receptor-grade IGF-1 is guaranteed to be at least 99% pure Long R3 IGF-1 peptide. This grade is only used in advanced human trials in very specific spots on the planet. It is a truly rare thing and does not offer the bodybuilder any real-life advantage over media grade. It is also unavailable. There has been batches of some substance sold as "Receptor grade IGF-1" over the last year or so and here a very serious warning must be given. There is a peptide which is only the receptor binding portion of the IGF-1 molecule, which is a cellular lab product which contains bovine peptides and prions. This stuff has no other function than to bind to the IGF-1 receptor. It has no beneficial properties but blocks the receptor from being used by actual IGF-1. Some very bad or misinformed people have been selling this to bodybuilders as receptor grade IGF-1. This stuff can be very toxic. Prions cause CNS trouble of which mad cow disease is an example.

 

[bluestrm]

Well, it is a very true posibility that bovine "grade" has and is being sold. Hell, William Llewellyn has quiet a bit of research on it posted over at his site.
And that is where arguments start and reputations get smeared. Call out a source and you need to have some damn good proof. Read what is "researched" and printed, and you might think it is an agenda.
Or if you get too caught up in it, it might turn you away from it all together.

 

[sicilian659]

Receptor Grade Danger

Bluestorm, I like your last statement, There is contraversy everywhere you turn in this arena of "bodybuilding" but, by the same token the few companies that market there products as "RECEPTOR GRADE" while trying to lure in a few saleson thehopes of lulling the common man to sleep with "Fairy Tales" and the like in my estimates do more damage to us and an industry already built on conjecture and falsehoods. I personally take it as an insult to my intelligence when someone tries to market something that it clearly is not. I take offense to that, and I want the rest of this community to be aware of these companies who deal dishonestly and without an ounce of credibility. To label something it is not and never will be is just bad business in this arena and at times those companies perpetraing a fraud need to be outted. I have dealt with several Peptide companies that are honest and operate with integrity but, the ones who try to make the quick sale on terminology of "Receptor Grade" when it is readily apparent that there is no such thing is either a company trying to destroy the industry on a whole, or is just so damn stupid that they do not belong selling to the public to begin with because they have no knowledge of what it is they sell .

 

[goodlife60]

Receptor Grade

I'm new on this site and I'm trying to find out more information about this so this is the ressponse I rec'd from a peptide company... I need some direction please!!



OK, our product is receptor grade. IGF 1 LR3 and IGF2 LR3. I cannot say that our IGF is any more or less effective than anyone elses, I really do not know.

I do know that the difference between receptor grade and media grade is significant. Receptor Grade stays in the research subjects system longer [less degredation of peptide], it binds to the cell receptors more effectively, it builds more new mucle cells via cell proliferation/ hyperplasia, and you can use less product than media grade on your lab subject.

I can offer the IGF-1 LR3 for $55 per 1mg vial, which for true Receptor Grade product that is made in the USA is as competitive as I know of.

I hope that helps.