2
vendors profiled
q2 audit cycle · pre-launch · setting up bench
Don't buy a peptide on a vendor's word. We're auditing theirs.
vialaudit is an independent research desk in pre-launch. The framework is live: we place anonymous test orders, send vials to a third-party lab, and publish what the chromatograms actually show. The first audit cycle is in progress. No sponsored reviews, no retainers, no vendor previews — ever.
preview profilemay 2026
Limitless Life Nootropicspreview
Cleanest COAs we've tested, fast US shipping, premium pricing.
composite
91/100
purity avg
95.0%
ship median
2.0d
reorder
81%
live · 4 vendors in lab queuenext drop · may 09
6
peptides indexed
6
articles published
0
first-hand audits
0
sponsored placements
§ 01
The leaderboard
updated may 02All 14 vendors →
composite = purity·40 + label·25 + ship·20 + cs·15
| # | vendor | purity | label Δ | ship med. | composite | vs q4 | |
|---|---|---|---|---|---|---|---|
| 01 | Limitless Life Nootropics | 95.0% | ±-83.0% | 2.0 d | 91/100 | +3 | Open → |
| 02 | Particle Peptides | 90.0% | ±-78.0% | 4.0 d | 88/100 | — 0 | Open → |
§ 02
Latest investigations
how-to
how-to · 11 min
How peptide vendors fail: a taxonomy
Eight failure modes, ranked by how often they appear in public Janoshik data and how hard they are for a buyer to catch before ordering.
2026-05-03T00:00:00.000Zread →
news
news · 8 min
What 7,164 Janoshik tests reveal about peptide vendor purity
43% of vendor-claimed purity figures failed independent retesting. The gap concentrates in three patterns you can avoid before clicking buy.
2026-05-03T00:00:00.000Zread →
how-to
how-to · 15 min
Peptide reconstitution: a research guide
Bacteriostatic water, syringe selection, dose math, storage. The reference we wish existed when we started.
2026-03-30T00:00:00.000Zread →
§ 03
Peptide guides & live coupons
BPC-157pentadecapeptide
Synthetic peptide derived from a protein fragment in gastric juice. Mechanism not fully characterized; rese…
12 vendors$415 mg avg
GHK-Cucopper tripeptide
Naturally occurring copper-binding tripeptide. Well-documented in dermatology literature for collagen synth…
6 vendors$3650 mg avg
RetatrutideGLP-1 / GIP / glucagon
Triple agonist of GLP-1, GIP, and glucagon receptors. Eli Lilly's Phase 3 candidate (TRIUMPH program).
9 vendors$9410 mg avg
SemaglutideGLP-1
GLP-1 receptor agonist. FDA-approved as Ozempic (T2D), Wegovy (obesity), and Rybelsus (oral T2D).
14 vendors$5810 mg avg
§ 04
How an audit actually works
01 / anonymous order
We buy at retail.
Every test order ships to a private mailbox under an alias. No press kits, no comp samples, no tells.
02 / independent lab
Mass-spec & HPLC.
Vials go to one of two labs we rotate between. Blind to vendor until after the report is filed.
03 / shipping data
We log every package.
Order placed, label created, in-transit, delivered, opened. Tracked across at least three orders.
04 / composite
Weighted, not averaged.
Purity 40%. Label accuracy 25%. Shipping 20%. Customer service 15%. Full rubric is published.
the roundup · monthly
Receipts in your inbox. Once a month.
New audits, expired coupons pruned, lab notes from vials still on the bench. No marketing. No lifestyle copy. Unsubscribe in one click.
14,200 subscribers· 0 sponsored items· 11 issues since launch