Nanjing Peptide Biotechnology
Finnrick has tested 4 samples from Nanjing Peptide Biotechnology across 1 product.
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Products
| Tests | ||||||||
|---|---|---|---|---|---|---|---|---|
| Product | Rating | Count | Avg | Min | Max | Oldest | Most Recent | |
| Retatrutide | 3 | 26 Apr 2026 | 26 Jun 2026 | |||||
The Nanjing Peptide Biotechnology samples tested by Finnrick were either acquired by Finnrick directly, or submitted by the public.
Customer Reviews
These indicators of customer satisfaction are based on reports submitted by the public through the Finnrick testing program, and are not verified.
Based on 7 overall satisfaction reports
People who submitted test requests to Finnrick gave Nanjing Peptide Biotechnology an average satisfaction rating of 4.6 out of 5 across 7 reports associated with samples received and tested by Finnrick. Customers rated customer service (5.0/5) particularly highly. Meanwhile, ease of purchase (3.9/5), payment methods (2.9/5), delivery speed (4.0/5), and packaging quality (4.0/5) received comparatively lower ratings.
Most recent Nanjing Peptide Biotechnology tests
Samples are tested in commercial labs
tests
products
Scores
First
Last
| Quantity | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Test Date | Product | Certificate | Test Score | Label | Tested | Difference | Purity | Endotoxins | Batch ID | Container | Tested At | Sent By |
| 26 Jun 2026 | Retatrutide | View | 50mg | 38.8mg | -22.4% | 98.20% | n/a | RT500526NP | White label / Silver crimp / Blue cap | Lab G | Public | |
| 26 Jun 2026 | Retatrutide | View | 20mg | 21.6mg | +8.0% | 99.70% | n/a | RT200526NP | White label / Silver crimp / White cap | Lab G | Public | |
| 26 Jun 2026 | Retatrutide | View | 40mg | ⚠️ Sample does not contain Retatrutide | n/a | RT400526NP | White label / Silver crimp / Blue cap | Lab G | Public | |||
| 26 Apr 2026 | Retatrutide | View | 15mg | 14.6mg | -2.7% | 99.90% | below LOQ | RT26031701 | (no data) | Lab E | Public | |
About Nanjing Peptide Biotechnology Test Results From Finnrick
Nanjing Peptide Biotechnology is a peptide vendor with multiple products tracked in the independent testing dataset collected by Finnrick. This page compiles recent, batch-level test results across 1 product and 4 tests, including scores, test dates, batch IDs, and lab details. This enables you to compare quality over time, not just marketing claims.
Each tested sample receives a 0–10 score, with 10 being the best possible value. It is the total of three components: purity (0–4 points), quantity accuracy vs. the label or batch claim (0–4 points), and batch information quality (0–2 points).
When several test results are available for a product and vendor pair, you’ll also find a Finnrick Rating (A–E, where A is best and E is worst, X if an insufficient number of tests is available, or F in rare cases of documented and widespread fraud) and customer satisfaction reports with sub-scores that provide additional context. Use the table above to review purity, quantity accuracy, consistency between batches, and any notable outliers surfaced in Finnrick testing data.
Nanjing Peptide Biotechnology Testing Activity & Score Summary
In the past 30 days, Finnrick has published 3 new test results for Nanjing Peptide Biotechnology, and 4 in the past three months. The overall dataset includes 4 tested samples with an average score of 7.6/10 across all products.
Across 4 identity-tested samples, 75% were confirmed to contain the expected peptide (identity pass rate). Among those that passed, median purity was 99.7%. Approximately 100% of passing samples tested at or above 98% purity.
Here is a closer look at the most frequently tested products:
- Retatrutide (3 tests, 75% identity pass, median purity 99.7%) — Test scores are highly variable, ranging from 4.2 to 10.0 (average 7.6/10), suggesting significant batch-to-batch differences.