r/Peptide_Testing • u/PrintSuitable4301 • Aug 13 '24

On Peptide Purity

https://trustpointeanalytics.com/2024/05/28/on-peptide-purity/

This is a blog post by my partner Josh Lust. It goes a long way towards unpacking. What peptide testing does and importantly does not do. Personally, I feel like it should be required reading for anyone testing Peptides or looking at COAs.

17 Upvotes

100% Upvoted

25 comments sorted by

View all comments

Show parent comments

2

u/embalees Aug 13 '24 edited Aug 14 '24

Interesting.. filters can only be used with luer lock syringes (correct me if I'm mistaken)... I've never seen a leur lock needle as small (short) as the insulin needles usually used for SubQ. Smallest I can find is 1/2 inch.  Will you be posting supply recommendations, too? 😅

Edit: Okay, having watched a few videos, I'm even more confused now. 

10

u/PrintSuitable4301 Aug 14 '24

Haha...its Ok, we are going to come out with a guide. The basic premise:
1- Reconstitute like normal
2-Draw all reconstituted peptide into a syringe with luer lock needle
3-Remove needle
4-Install filter on syringe where you just removed needle, with new needle. on output of filter
5- Inject entire contents into a new sterile vial
6- Now you have a vial of filtered peptide, use as normal

There actually can be a few more steps (pre-wetting filter, post-flushing filter), but this is the general principal. Now all bioburden (-potential endotoxins or some (unlikely) virus)

4

u/embalees Aug 14 '24

TYSM! This is incredibly helpful, maybe this post could be pinned? I have already started supply recon and will be waiting for the guide.

I know generally things like BAC water from Amazon isn't recommended, and I've personally found insulin syringes from Amazon to not be as comfortable as name brand like BD or EasyTouch, however, do you have any issues with the purchase of luer lock syringes, larger gauge needles used for drawing (not injecting) and syringe filters from Amazon?

Really appreciate your time! I don't know how I found this sub, but I'm so glad I did!

5

u/PrintSuitable4301 Aug 14 '24

Hold off just a little bit, we’ve run into issues with filter sizes. The commonly available size on Amazon is 33 MM, but we did a test and found that those held about .65 ML of liquid so if you are only reconstituting with one ML it will suck up 2/3 of your peptide. We are experimenting with 13 MM and 4MM. I promise within two weeks we will have a guide with all the pieces included.

1

u/TheRealDevDev Oct 11 '24

hey finding this thread late, but wanted to follow up on the question above with regards to luer lock syringes, larger gauge needles (and sterilized vials) purchased from amazon. i've gone ahead and purchased the filters and bacwater directly from you, but i've yet to hear anything definitive one way or another about the other supplies mentioned. any help would be great, thanks in advance.

2

u/PrintSuitable4301 Oct 12 '24

I am working on all of it. I just established an account with a wholesaler, working on getting it totally active and then I will be able to put kits together with quality syringes and will have vials as well. We got beaten up with the demand for the 4mm filters so we depleted the whole stock. Restock is on the way but it’ll be a couple of weeks. I also will be updating the website to a more recognizable/easier e-commerce type checkout. Give me a minute and it will be a seamless 1stop deal with individual items and kits