I asked Janoshik, a reputable professional chemist with the greatest exposure and insight into grey market samples of LR3 IGF-I what his professional experience from performing countless HP/LC testing on these compounds told him. Regarding the following questions: 1. practical reconstitution & administration (usage), 2. prevalence of counterfeit and/or replacement product, 3. potency loss of LR3 IGF-I in its unreconstituted-lyophilized solid state if known, otherwise of comparable IGF peptides (broadly similar).
On the matter of 1. usage (reconstitution & administration), Simply:
janoshik, Feb 3, 2023: "Use normal saline for injection."
Normal saline is 0.9% NaCl solution (isotonic).
On the matter of 2. & 3., the response is combined as:
janoshik, Feb 3, 2023: "First UGL samples of LR3 I had encountered have been from TheProvider quite a few years ago - might have been 6 or 7 at this point. They were generally good and high quality.
"A couple years after that other vendors such as Supertropin started selling (and testing too) and after that the interest seemed to [w]ane.
"I remember coming across a couple of lower quality samples, eg. ~20% degraded LR3 and I've tested quite a few supposedly LR3 samples, that were just filler or a different peptide. Most recent one was less than a month ago. Generally, though, the interest seems to have [w]aned compared to say 4-5 years ago, at least testing-wise.
"Stored lyophilized [LR3] samples definitely last years and dissolved in water stored refrigerated for months as per my own testing."
Refrigeration temperature is 2 - 8° C (35 - 46° F).
ADDITIONAL COMMENTS (Solely those of Type-IIx)
I believe that this obsession with acetic acid is rooted in some early handling instructions & specifications sheets that came from GroPep (a legitimate manufacturer of Receptor Grade & Media Grade LR3 IGF-I, to licensed chemists, surely requiring proof of legitimate use - so don't try them). Therein, you'll see that the appearance of vials is described as, "White powder freeze-dried from 0.1M acetic acid and stored under nitrogen at a slight vacuum..." Additionally, there may have been some confusion with acetate, that is used in INCRELEX (mecasermin; rhIGF-I) in addition to other preservative, sterility, anti-adhesion, anti-specific binding, agents and such. Acetate is a monocarboxylic acid anion resulting from the removal of a proton from the carboxy group of acetic acid. It has a role as a human metabolite... It is a conjugate base of an acetic acid. Soon after LR3 IGF-I became available on the grey market, BassKillerOnline became a soundingboard for writings that argued for acetic acid solutions (with reference to GroPep materials that can be found therein); it just became a commonly repeated myth, classic bro-science.