Skidude said:
This interview was quite informative, and it's clear that his influence touches every corner of the grey markets.
The short version:
Topics covered:

Janoshik's actual function
– The largest commercial analytical chemistry lab globally focused on hormones and peptides– More than 20,000 sq ft, 40+ staff, and now handling 1,000+ samples daily
– Began naturally from a dorm room at age 16 with no marketing or investors– Expanded by 50% in just the last three months

What your peptides really contain
– About 1 in 20 samples is either the incorrect compound or dosed so low it's ineffective– A recent spike in totally empty vials with no active compound at all
– This impacts all peptides: BPC, GHK, Sema, Reta, and others
– Empty vials mostly originate from distributors screening new suppliers and typically never make it to consumers
– "Bioglutide," a wholly invented molecule, is still being sold and invariably tests as something different

Key testing priorities
– Identity and dose: by far the most valuable tests available
– Heavy metals: almost never a problem in peptides, so don't be swayed by fearmongering
– Endotoxins: once thought unnecessary, but recent contaminated batches causing local reactions have shifted that perspective
– 100% purity is physically impossible; anyone claiming it relies on dubious methods
– Pharma standard for HGH is 89% purity, while market standard ranges from 92–96%

The HGH situation
– HGH consists of 191 amino acids, making it far more complex and harder to maintain purity than short-chain peptides
– HGH testing over 99% pure does exist, but it's exceedingly uncommon
– Branded ampoules like Bayer Primobolan test as pure oil more than 90% of the time, with counterfeiting that's nearly flawless

Revenue sources
– Around 2/3 of revenue comes from the US, the largest consumer market and peptide culture
– About 20% from Chinese manufacturers using Janoshik to verify their own products
– Over 60,000 individual US clients compared to roughly 50 large Chinese manufacturers

Why legal peptide testing is impossible in the US
– HGH and many peptides are scheduled substances requiring a DEA license
– Labs without proper licensing face legal liability
– GLP-1s can currently be tested in the US, but most small US labs still make mistakes

Straight talk
– Testing transformed the steroid market within 5 years, and the same is now happening with peptides
– Companies that test consistently turn out better products; it's more cost-effective long-term than rebranding after setbacks
– Spend a bit more on companies that genuinely test their batches; it pays off

This isn't theoretical; it's real-world experience from working with hundreds of people and observing what truly works.