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@Stevepep I have ZERO education on any of this so I defer to pretty much anyone else. I just know that once I learned there is a definite difference in TB-500 and TB4, and I changed up my research protocol based on some information I found about the differences, I started seeing much better results. For my rat, one way works better than the other so I try to make sure I am ordering the one he has felt better using. (But I also have found that facing east and listening to the correct music when giving my rat injections leads to better results also so who knows! I latch on to any little difference that I may think leads to relief for my test animals.)
There IS a difference in TB-500 and TB4 so it is confusing when they are labeled/used interchangably. Are the differences enough to justify companies being more specific in how they name their products?? That question is way out of my league.
So glad the blend is game-changing for your research!

@Nuncles I had the same struggle with trying to understand. It's because some places label a peptide TB-500 because that is waht people are most familiar with but what they are really getting is TB4.

TB4 is what is in the blends that you buy.
BPC and TB4 are both daily. TB-500 is the one that is twice weekly.

I also read that the real TB-500, that can be taken 2-3 times weekly, is not the best to use for my rat's specific issue. So I have to make sure I am getting TB4, which is a daily dose, and is best for my rat's joint issue.

I have researched both of these for chronic SI Joint pain in my rat.
When I began, I bought the blend. I didn't see any relief in my rat. Then, as I learned more, I started buying them seperate because of one thing - I had no idea that TB4 and TB-500 have very differnt dosing suggestions. I started buying "TB-500" and following dosing for TB-500. I was reading that the half life for TB-500 fit better with a 3-4 times per week dose - which i could not do with a blend. The results for my rat were not better this way either.

Then I came across information that explained the difference in TB-500 and TB4. The "TB-500" I was getting was really TB4 but the company was just labeling it TB-500 because that is what people were most familiar with... Sheesh!!

After learning this, and how different the dosing suggestions are for both, I completely changed the dosing for my research and the results are night and day!

I was told BPC-157 and TB4 don't give great results with chronic joint issues but my rat has not felt this pain free since 2019.

Keeping them seperate was still best for my rat. With trial and error I found that, my rat started responding to a higher dose of TB than BPC. (I also give him GHK-Cu)
The bottom line is that there is learning curve for every research animal being tested and with trial and error you can eventually dial in to something that can work for your specific animal.

Since I order from Flawless, I took the time to read this whole thread... What a Soap Opera!
If I were the cutomer that went through all this just to get a well deserved refund, I would be pretty frustrated with Flawless too.
BUT, Flawless, Thanks for caring to fix the mistakes made, even if it did take a public post to get it done, It was fixed and I'm still going to be a customer!

This is a vendor review submitted by amyeisner on PeptideCritic.com.

Rating: (5/5)

Review

I ordered two vials of GHK-Cu. When I reconstituted one, it didn't dissolve quickly. I sent a picture of the problem and he asked me if it happened with the second vial. So I reconstituted the second vial and it also didn't dissolve quickly. Without any hesitation, he sent me two more vials AND Hospira BAC water to reconstitute it with. And sent it two day air. And didn't charge me anything.
Can customer service get any better than that?!
Yes, one of the new vials with the Hospira BAC water he provided did dissolve right away so I"m very pleased!

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Ive read that GHK-Cu may burn more when injected in the belly fat becausen belly fat is more inflammatory. That seems to be the case for me. My first couple of injections were in the belly and the spot was red and irritated every time. Then i moved to rotating between outer and inner thighs and it was much better! Although still, maybe one out of every 10 injections, I get a bruise, it stings and/or leaves a little bump for a few hours, these locations work much better for me. To make it less irritating, I also split mine up into a 3 mg injection morning and evening (so 6 mg per day), and it's mixed with 3 mL of BAC water.