⚠ Peptide Sciences SHUT DOWN March 6, 2026 — anyone have experience?

I'm a analytical chemist and I want to point out something about those Janoshik results. The fact that they detected mannitol specifically is telling. Mannitol is commonly used as a lyophilization bulking agent in legitimate peptide manufacturing. This means whoever made these vials had enough knowledge to make them LOOK like real lyophilized peptides (the cake in the vial would look right) but just didn't bother putting any actual peptide in. This is deliberate, sophisticated fraud. Not a manufacturing error.

I bought directly from their .com site. Paid with credit card thankfully. Already filed a dispute. that's exactly what makes me so angry. The vial looked perfect. Clean lyophilized cake, proper vacuum seal, professional labels. Someone put effort into making convincing fakes. Just zero effort into putting actual peptide in them. For anyone wondering — Janoshik test cost me $120 but it was worth every penny to know the truth. I'm going to test everything going forward. Lesson learned the hard way.

This is genuinely dangerous beyond just being a financial scam. People are making medical decisions based on thinking they're taking semaglutide. Someone could be relying on this for blood sugar management and end up in a serious situation because their "medication" is just mannitol powder. Please, anyone reading this — if you've been using PeptideKingz product for glucose management, check your blood sugars immediately and contact your doctor.

Just checked and their website is already down. Classic move — grab as much money as possible, shut down, rebrand, repeat. I guarantee these same people will pop up under a new name within a month. Everyone save that Janoshik report. When they rebrand, we can compare COA formatting and catch them faster next time.

UPDATE: I've now heard from 4 other people via DM who also got bunk from PeptideKingz. Two of them are sending their vials to Janoshik this week. I'll update this thread with their results. Also want to say thanks to this community for taking this seriously. This is exactly why we need to keep testing and calling out scammers. Stay safe everyone.