This is a vendor review submitted by angelijohnson on PeptideCritic.com. Rating: (5/5) · Peptide: Glutathione · Reviewed November 7, 2026 I was a little skeptical about ordering at first, but I decided to give RIVN RESEARCH a chance, and I’m so glad I did! My order arrived right on time, exactly as promised. Everything was neatly and… Read the full review on Rivn Research's page Shop Rivn Research Discuss this review, share your own experiences, or ask questions about the vendor. Please keep discussions respectful and factual.

@DarkStar also, I have put 3ml in these vials. I get ghkcu 50 and recon with 3ml and split it between 2 vials then add another 1.5 of Bac. So both my vials have 3ml. I switched to pens so now I barely use them, the pen vials are more reasonably priced.

Hey Doug I can definitely help you with a phenomenal vendor

I've used Skye Peptides for KLOW, PT-141, Ipamorelin, Tesamorelin, and Retatrutide, and it has been a great experience each time. All have worked well for me. My first order was for Reta in July. I had been on prescription GLP-1, and when I switched to Reta, I could tell it was working in terms of appetite suppression, and it has continued to work for me. Next, I tried Tesamorelin, and had no negative reactions to it. Then I added KLOW and Ipamorelin, and they seem to be working well with no negative side effects. So, I've now placed about four orders with Skye, and each has gone well. In early October, after visiting Peptidecritic to see if I could find cheaper places to order from, and because Skye did not have SS-31 (or was out of stock? I don't recall the exact reason - looking again,they seem to have it back in stock now), I tried ordering MOTS-C and SP-31 (aka SS-31, Elamipretide, MTP-131, or Bendavia) from Studz Peptides, which was a good experience too. All orders from both vendors arrived quickly, there was good communication on when things were going to be delivered, and the peptides seem to all be legitimate, although I did not have any testing done outside of how they have felt. That's my anecdotal experience so far, but figured I should at least share my small data point.

@bearhead said: This post has been interesting in that there are judgements. I ordered & received yesterday. Very impressed with his entire process. I even received real BAC Hospira instead of Ebac. The lab is indeed Freedom and the pic of vial match cap color delivered which is better than I can say from a couple others that I have ordered from. Let's be honest, we are all taking risks. Looks totally fine to me. Pulling for the kid to succeed! I agree. I had no problem him, his product or customer service!!! Will buy from again!!

Ideally that's what the FDA should take care of and Pharma is technically supposed to have that information available along with chains of custody so that they can trace who had what lot at what time for the entire process... But Big Pharma will bury the lead, and only after a significant statistic of people die will the FDA go in and make the company pay a fine that's less than you'd tip your waiter for their mistake. Ain't saying the system isn't broken, just that it's fucked up that it is and I wished it worked like it is supposed to instead of working to line the pockets of rich assholes.

@Stan-Douglas - granted he is talking about the cytomax versions of the oral bioregulators though. For injectible Pinealon and Epitalon Dean mentions he does those for 20 days every 6 months, which sounded like that was more of a maintenance cycle vs initially treating acute aging symptoms.

I had 10mg vials from 2 different vendors. Both gelled. But they were cloudy when gelled, so I wouldn’t have used them. I am not sure they were completely at room temp and I didn’t try the maintaining a vacuum thing. I wonder if this is why Nexaph only sells 2mg vials. Alpha Biolabs also had difficulty making high concentration vials that wouldn’t gel, but they said they finally got the ph right on the large concentrations.

@PeptidePete Love the shirt in this post

Redacting COA information. Vanguard reports go to a company called "bio code" [image: 1793998150676-221064b7-b12a-4a82-bce8-96e4d6d53d87-image-resized.jpeg] [image: 1793998174220-7c889276-858b-4095-a944-37260db4b45d-image.jpeg]

I'm a newbie, but I've been impressed by Glacier Aminos

@vpeps I think because that one has not yet gone to human trials. IIUC this chart shows only the ones past preclinical stage and into human trials.

@crash2127 The really good vendors track caps and crimps to batches so that the COA match is identifiable. When everything is white, black, red etc that makes it nearly impossible

COA's all dated back to January 2026. Vendor has not confirmed if this is current stock. [image: 1793940536255-screenshot-2026-11-05-194322-resized.png] [image: 1793940536788-screenshot-2026-11-05-194424-resized.png]

@pensar i blame bob

@denti They are truly horrible. I have heard multiple independent stories from other people including my personal bad experience ordering KPV capsules from them. I'm never going to consider at them ever. Guess what now they have Elora with ILS COA! Race to the bottom.

Yeah, it's a 1 hour rant with about 5 minutes of actual relevant information. Also the $20,000 for his black card membership, LOL.

Let me know what you are trying to do happy to help

Dovetailing on what @dstewartjr said, I dont understand the current ranking system. How is Southern Aminos ranked #2, if they are using labs, which a large number of this community frowns upon? I could point out more inconsistencies, based on general community sentiment, but this post is not intended to vendor bash. Is there an explanation of the rating system, other than the 1 sentence at the top of the vendor list that I am missing?

Bought PT141 and melanotan 1 from them when they had a sale. Tested them out before we chose to buy a kit from a different vendor. They are more expensive than some companies probably because of the packaging. Nice little box with padding holding the vials tightly in place and box lid flips open. From what I remember the COA and lot# matched what was printed on the vial label. Haven't bought more from them though just because of pricing. Looks like they are using Freedom for their testing. Not sure who they used with the vials we bought since they are now long gone. Bought these back before I found this website and became a more informed researcher.