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PepIndex

Testing laboratory

Horizon Analytical

Horizon Analytical signed 9 of the certificates behind these rankings, covering 2 vendors and 9 compounds, at a mean reported purity of 99.31%. Its own site makes no ISO/IEC 17025 claim. We have found no public lookup for this laboratory, so its reports can be read but not independently re-pulled.

9 certificates · 2 vendors · 9 compounds · assays 27 Jan 2026 to 3 Jun 2026

Accreditation and verification

Location
Not published
Website
horizonanalytical.com
ISO/IEC 17025
No claim on its siteMarkets “PhD-verified accuracy”; no ISO/IEC 17025 claim, location or lookup on its site.laboratory site read 30 Sept 2026
Attributed by vendors
No vendor using only this laboratory records an accreditation for it.
Report lookup
No public lookup found

What its certificates report

9 lots
Assayed purity

9 of 9 lots at 99% or above; mean 99.31%.

0510<95%: 0 lots<95%95–97%: 0 lots95–97%97–98%: 0 lots97–98%98–99%: 0 lots98–99%99–99.5%: 8 lots899–99.5%≥99.5%: 1 lots≥99.5%
Assayed purity
Rangelots
<95%0
95–97%0
97–98%0
98–99%0
99–99.5%8
≥99.5%1
Assayed mass vs label

89% of lots within 5% of the labelled mass; median gap 2.0%.

02.55≤2%: 5 lots5≤2%2–5%: 3 lots2–5%5–10%: 0 lots5–10%10–20%: 1 lots10–20%>20%: 0 lots>20%
Assayed mass vs label
Rangelots
≤2%5
2–5%3
5–10%0
10–20%1
>20%0

These figures describe what the laboratory reported about the samples it received. They are a property of those samples and of the vendors that sent them, not a rating of the laboratory.

Vendors using this laboratory

VendorCertificates from this lab
NLNorthline Labs8
Prime Peptides1

Certificates

All certificates
AssayedCompoundVendorLotPurityLabel → assayedDocument
3 Jun 2026GHK-CuPrime PeptidesPP-6524116-P99.48%100 mg → 99.48 mgOpen
12 May 2026BPC-157NLNorthline LabsNLL-443693799.36%10 mg → 9.92 mgOpen
12 May 2026TirzepatideNLNorthline LabsNLL-988733799.29%10 mg → 10.22 mgOpen
12 May 2026SelankNLNorthline LabsNLL-990774399.22%10 mg → 9.8 mgOpen
12 May 2026SemaxNLNorthline LabsNLL-315706199.23%10 mg → 9.69 mgOpen
12 May 2026AOD-9604NLNorthline LabsNLL-371388899.65%5 mg → 4.97 mgOpen
3 May 2026TesamorelinNLNorthline LabsNLL-798097599.19%10 mg → 10.12 mgOpen
26 Apr 2026IpamorelinNLNorthline LabsNLL-519268099.15%10 mg → 9.79 mgOpen
27 Jan 2026SermorelinNLNorthline LabsNLL-991217399.21%5 mg → 5.8 mgOpen