66
OF 100
VENDOR AUDIT
Hello Stacks
All 31 published Vanguard reports resolve and fills median 107.3% of label, but no vial report tests identity and the shop sells HGH. Public-data audit.
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VENDOR MATCHUP · AUDITED
Hello Stacks vs Particle Peptides
Two audits, side by side. Composite, subscores, shipping, payment, coupons. Particle Peptides takes the higher composite this cycle.
Composite score
vs
84
OF 100
VENDOR AUDIT
Particle Peptides
EU-based vendor with the deepest catalog-COA surface in our cohort and a clear methodology improvement curve from 2024 to 2025+. 2024-vintage Apigenex-tested batches show a content-vs-label gap (70–80% measured content on label-stated quantities); 2025+ Liquilabs assays meet label. Carries Retatrutide under the alias "GLP-3" — buyers searching for retatrutide may not realise.
Subscore breakdown
7 METRICSMETRIC
HELLO STACKS
PARTICLE PEPTIDES
Composite · weighted avg
66/100
vs
84/100
Purity / COA
74/100
vs
85/100
Shipping · domestic days
3.0d
vs
4.0d
Pricing
78/100
vs
90/100
Support
55/100
vs
80/100
Last tested
2026-10-09
vs
2026-05-09
Payment
card, ach
vs
crypto
Catalog overlap
ONLY HELLO STACKS
kpvnad-plustesamorelin5-amino-1mqsemaxcjc-1295ipamorelin
BOTH
bpc-157tb-500mots-cghk-cuaod-9604
ONLY PARTICLE PEPTIDES
retatrutide
Active coupons
No active coupon for Hello Stacks this cycle.