Every L-Tetrahydropalmatine (L-THP) COA we've seen

Cross-vendor view of every Certificate of Analysis for L-Tetrahydropalmatine (L-THP): purity distribution, test coverage gaps, recent batches. Sourced back to the original COAs.

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Open methodology Lab-verified only Scores you can't buy

COAs ingested

Vendors

99.08%

Avg purity±0.82%

N/A

Endotoxin testednon-injectable form

Tested by

Vanguard Laboratory1 COAA MZ Biolabs1 COA

Purity over time

Each dot is one COA. Color = vendor. The dashed line is a recency-weighted rolling mean (6-month half-life) — it tells you whether testing is trending up or down across the corpus, independent of which vendors happen to have published most recently. Tightly clustered points across many vendors = either real consistency or rubber-stamping; check the individual labs.

Not enough data points to chart yet (need 2+ extracted COAs with both a tested date and a purity result).

By vendor

Vendor	COAs	Avg purity	MS	Endotoxin	Sterility	Metals	Latest
Kimera Chems	2	99.08%		N/A	N/A	—	2025-08-26

Recent batches

Vendor	Lab	Lot	Purity	Tested
Kimera Chems	Vanguard Laboratory	KC-THP-01	98.26%	—	View
Kimera Chems	MZ Biolabs	KC-THP-02	99.90%	2025-08-26	View