Precision Engineered: Lab Test Results

Independent Certificates of Analysis aggregated from public lab results. Not affiliated with or paid by Precision Engineered.

392
CoAs on file
n/a
Avg reported purity
42
Compounds tested
Sep 13, 2026
Latest test

Results by compound

CompoundCoAsAvg purityLatest
Whey Protein26n/aSep 13, 2026
Creatine Monohydrate 700mg26n/aSep 13, 2026
Tan Tablets25n/aSep 10, 2026
L-Lysine 1000mg22n/aAug 16, 2026
L-Carnitine 500mg19n/aJul 12, 2026
L-Glutamine 500mg19n/aJul 12, 2026
L-Arginine 1000mg15n/aJul 15, 2026
Electrolyte14n/aJun 23, 2026
Pure Creatine Monohydrate14n/aJul 6, 2026
BCAA13n/aJun 24, 2026
L-Tyrosine 500mg13n/aJul 16, 2026
L-Arginine L-Ornithine L-Lysine12n/aApr 28, 2026
L-Arginine 500mg12n/aMar 19, 2026
100% Whey Protein Isolate12n/aApr 23, 2026
Lean Protein12n/aJul 12, 2026
Amino 100010n/aJul 26, 2026
Magnesium & Zinc10n/aJun 16, 2026
Essential Amino Acids10n/aJun 3, 2026
Plant Protein9n/aJul 6, 2026
N-Acetyl Cysteine 600mg9n/aAug 9, 2026
Choline & Inositol8n/aJun 29, 2026
Performance BCAA8n/aJul 6, 2026
Gainer8n/aSep 18, 2025
Protein Bar7n/aAug 9, 2026
L-Taurine 500mg6n/aJan 19, 2026
Performance Pre Workout6n/aJun 11, 2026
ZMA6n/aAug 6, 2026
Plant Protein Bar5n/aAug 5, 2026
Creatine Powder 5000mg5n/aMar 29, 2026
Effervescent Hydration & Energy4n/aMay 14, 2025

Top 30 of 42 compounds shown.

Recent CoAs

CompoundBatchPurityLabTested
Whey ProteinF06841n/aInformed-SportSep 13, 2026verify
Creatine Monohydrate 700mg00186703n/aInformed-SportSep 13, 2026verify
Tan Tablets00972302n/aInformed-SportSep 10, 2026verify
Creatine Monohydrate 700mg00689403n/aInformed-SportSep 9, 2026verify
Tan Tablets00972301n/aInformed-SportSep 9, 2026verify
Whey ProteinF06753n/aInformed-SportAug 19, 2026verify
L-Lysine 1000mg00952902n/aInformed-SportAug 16, 2026verify
Whey ProteinF06752n/aInformed-SportAug 12, 2026verify
N-Acetyl Cysteine 600mg00843202n/aInformed-SportAug 9, 2026verify
Protein Bar150583n/aInformed-SportAug 9, 2026verify
CLA 1200mg5963701n/aInformed-SportAug 6, 2026verify
ZMA00818302n/aInformed-SportAug 6, 2026verify
ZMA00818301n/aInformed-SportAug 6, 2026verify
Plant Protein Bar145585n/aInformed-SportAug 5, 2026verify
Plant Protein Bar145584n/aInformed-SportAug 5, 2026verify
Protein Bar150576n/aInformed-SportAug 5, 2026verify
Amino 100000793001n/aInformed-SportJul 26, 2026verify
Creatine Gummies00616202n/aInformed-SportJul 26, 2026verify
L-Tyrosine 500mg00683802n/aInformed-SportJul 16, 2026verify
L-Lysine 1000mg00436502n/aInformed-SportJul 15, 2026verify
L-Arginine 1000mg00810401n/aInformed-SportJul 15, 2026verify
L-Lysine 1000mg00436507n/aInformed-SportJul 12, 2026verify
L-Glutamine 500mg00714301n/aInformed-SportJul 12, 2026verify
Lean ProteinF06410n/aInformed-SportJul 12, 2026verify
Lean ProteinF06411n/aInformed-SportJul 12, 2026verify

Showing 25 most recent of 392. Search the full database on the CoA page.

Embed this badge

Sell or represent Precision Engineered? Link your customers to this page with the badge below. Free, no signup. The badge and counts update as new lab results land.

Lab tested badge preview
<a href="https://ascendpeptide.org/coa/vendor/precision-engineered/" rel="noopener">
  <img src="https://ascendpeptide.org/coa/badge/precision-engineered.svg" alt="Precision Engineered: lab tested, 392 CoAs on file at ASCEND Peptide" width="230" height="54">
</a>

Data comes from publicly posted third-party lab certificates (Janoshik, MZ Biolabs, and others) and community submissions. Purity figures are as reported by the testing lab for the specific batch tested; they are not a guarantee of any other batch. For research and informational purposes only.