z.aalto95/100
Three compounds on one invoice, all three lot-matched to their own certificates, all three inside spec on independent testing.
TFC — Tianjin Finder Chemical Co., Ltd.
Tianjin, CN. The index holds 573 assay reports across 99 batches and 41 compounds, contributed by 6 laboratories. Every figure below is computed from those records and from nothing else.
Where TFC sells
Tianjin Finder Chemical Co., Ltd. sells from its own storefront. The link is marked nofollow and sponsored: it exists so the figures on this scorecard can be read against what the supplier itself publishes. The index is paid nothing for it and a link is not an assessment.
Visit TFC at tfcpeptides.com →
Every figure above describes lots the index has seen. It says nothing about the lot you are offered, and the only check that does is the one on the certificate against the vial.
Block 1
Identification
Business facts, held constant across the index and not derived from the data. The index sells nothing and takes no supplier payment for placement; the storefront link below is marked nofollow and sponsored so a record can be checked against the seller, and is not a recommendation.
- Legal name
- Tianjin Finder Chemical Co., Ltd.
- Short code in this index
- TFC
- Also known as
- TFC · TFC Peptides · Tianjin Finder Chemical
- Domain
- tfcpeptides.com →
- City
- Tianjin
- Region
- Tianjin
- Country
- CN
- Established
- not stated
- First record in index
- 20 Jan 2024
- Most recent record
- 10 Oct 2026
Block 1b
Dispatch and warehouses
Where the supplier holds regional stock. Material assayed by the index is dispatched from these locations, not from the manufacturing site.
- Netherlands (Rotterdam) — European Union, 2-4 days
- Germany (Hamburg) — Germany, Austria, Switzerland, 2-4 days
- United Kingdom (London) — United Kingdom & Ireland, 2-3 days
- United States (California) — United States, 2-4 days
- Canada (Toronto) — Canada, 3-5 days
- Australia (Melbourne) — Australia & New Zealand, 3-5 days
Block 2
Headline statistics
Each figure carries the n it was computed from. The n= badge next to a statistic is the number of records it was computed from. Below n=8 the badge is amber. Below n=3 the statistic is suppressed and the individual values are shown instead.
Median purity
99.06%
n=573
Interquartile range
1.01pp
n=573
10th percentile
98.01%
n=573
Pass rate vs index spec
96.5%
n=573
Median recovery vs claim
97.8%
n=331
Median water
4.23%
n=573
Median |mass error|
2.6ppm
n=480
Records carrying a flag
72.6%
n=573
Block 3
Reproducibility across independent tests of one lot
Where the same physical lot was assayed more than once, the spread between those results is a property of the material and the fill, not of the market. It is the rarest and most informative statistic on this page, and it exists only for lots someone tested twice.
Median within-batch spread
0.82pp
n=69
Index median spread
0.95pp
n=20
Lots tested 3+ times
69
n=99
Across the 69 TFC lots in the index with three or more independent assays, the median spread between the highest and lowest purity result on one lot is 0.82 pp. Interpreting that number requires the laboratory repeatability figures: the best contributing laboratory here repeats to 0.16 pp and the worst to 0.34 pp, so a within-lot spread under about 0.5 pp is indistinguishable from measurement noise and a spread above 1 pp is a statement about the material.
Block 4
Supplier certificate against independent measurement
The supplier's own COA purity figure for a lot, minus the median of the index's independent observations of the same physical lot. Positive means the certificate reads higher than the measurement. Rule AX-R05 fires above 1.5 pp.
Median COA divergence
+0.44pp
n=99
Index median divergence
+0.31pp
n=20
Divergences in the supplier's favour
86%
n=99
Divergences beyond 1 pp
3%
n=99
Block 5
Provenance — where the tested material came from
Supplier-supplied samples are weaker evidence than independently purchased ones, because the supplier chose the vial. The index measures the size of that effect rather than assuming it.
Buyer-sourced median
98.63%
n=66
Supplier-supplied median
99.14%
n=464
Supplier-supplied share of records
81.0%
n=573
Block 6
Documentation completeness
The score is not an opinion about paperwork. Each component is the share of TFC batches in the index whose certificate carries that field, weighted as set out on the scoring rubric.
Documentation score
84/100
n=99
Index median score
79/100
n=20
| Certificate field | Batches carrying it | Rubric weight | |
|---|---|---|---|
| Purity figure stated | 100% | 25 points | |
| Analytical method stated (column, gradient, wavelength) | 65% | 25 points | |
| Peptide content stated | 63% | 20 points | |
| Endotoxin stated | 26% | 15 points | |
| Named impurities rather than a total | 55% | 15 points |
Block 7
Coverage by compound
The delta column is this supplier's median minus the index-wide median for the same compound, which is the only comparison worth making: comparing a supplier's aggregate against another supplier's aggregate compares their product mixes as much as their process control.
| Compound | Class | Reports | Median % | Index median % | Δ (pp) | Index spec | Pass % |
|---|---|---|---|---|---|---|---|
| Tirzepatide | Incretin | 65 | 98.35 | 98.44 | -0.09 | 97.0 | 98 |
| Semaglutide | Incretin | 57 | 98.78 | 98.87 | -0.09 | 97.0 | 100 |
| Retatrutide | Incretin | 46 | 98.21 | 98.41 | -0.20 | 96.5 | 100 |
| Liraglutide | Incretin | 30 | 99.27 | 99.02 | +0.25 | 97.5 | 100 |
| PT-141 (Bremelanotide) | Melanocortin-receptor | 26 | 99.15 | 99.31 | -0.16 | 98.5 | 96 |
| BPC-157 | Tissue-repair | 25 | 99.19 | 99.15 | +0.04 | 98.0 | 100 |
| TB-500 | Tissue-repair | 25 | 99.69 | 99.47 | +0.22 | 98.5 | 96 |
| ARA-290 | Tissue-repair | 17 | 99.82 | 99.45 | +0.37 | 98.0 | 100 |
| Ipamorelin | Growth-hormone | 16 | 99.24 | 99.48 | -0.24 | 99.0 | 75 |
| MK-677 (Ibutamoren mesylate) | Non-peptide | 15 | 99.41 | 99.37 | +0.04 | 98.5 | 100 |
| AOD-9604 | Metabolic | 15 | 99.73 | 99.25 | +0.48 | 98.0 | 100 |
| Melanotan II | Melanocortin-receptor | 14 | 99.33 | 99.24 | +0.09 | 98.5 | 100 |
| Semax | Neuroactive | 13 | 99.29 | 99.17 | +0.12 | 98.5 | 100 |
| Gonadorelin | Hypothalamic | 13 | 99.47 | 99.28 | +0.19 | 98.5 | 100 |
| Survodutide | Incretin | 13 | 98.97 | 98.69 | +0.28 | 96.5 | 100 |
| Humanin (HNG) | Metabolic | 12 | 99.68 | 99.47 | +0.21 | 97.5 | 100 |
| Dihexa | Neuroactive | 12 | 99.51 | 99.84 | -0.33 | 98.5 | 100 |
| Epitalon | Short | 11 | 98.85 | 98.63 | +0.22 | 99.0 | 45 |
| SS-31 (Elamipretide) | Metabolic | 10 | 98.69 | 99.42 | -0.73 | 98.5 | 60 |
| MOTS-c | Metabolic | 10 | 99.41 | 99.18 | +0.23 | 98.0 | 100 |
| PEG-MGF | Growth-hormone | 10 | 98.03 | 97.92 | +0.11 | 92.0 | 100 |
| LL-37 | Tissue-repair | 10 | 98.16 | 98.61 | -0.45 | 96.5 | 100 |
| Pramlintide | Incretin | 10 | 98.61 | 98.84 | -0.23 | 97.5 | 100 |
| 5-Amino-1MQ | Non-peptide | 9 | 99.43 | 99.24 | +0.19 | 98.0 | 100 |
| KPV | Tissue-repair | 9 | 99.78 | 99.21 | +0.57 | 99.0 | 100 |
| Selank | Neuroactive | 9 | 99.43 | 99.13 | +0.30 | 99.0 | 89 |
| GHRP-2 | Growth-hormone | 9 | 99.32 | 99.22 | +0.10 | 99.0 | 89 |
| Enclomiphene citrate | Non-peptide | 8 | 99.36 | 99.23 | +0.13 | 98.5 | 100 |
| CJC-1295 (no DAC) | Growth-hormone | 8 | 98.84 | 98.61 | +0.23 | 98.0 | 100 |
| Exenatide | Incretin | 8 | 99.83 | 98.94 | +0.90 | 98.0 | 100 |
| Sermorelin | Growth-hormone | 7 n=7 | 98.71 | 98.94 | -0.23 | 98.0 | 100 |
| IGF-1 LR3 | Growth-hormone | 6 n=6 | 97.77 | 97.75 | +0.02 | 95.0 | 100 |
| Afamelanotide | Melanocortin-receptor | 5 n=5 | 99.01 | 99.28 | -0.27 | 98.0 | 100 |
| Kisspeptin-10 | Melanocortin-receptor | 5 n=5 | 99.27 | 99.27 | +0.00 | 98.5 | 100 |
| NAD+ | Non-peptide | 4 n=4 | 99.42 | 98.88 | +0.55 | 97.0 | 100 |
| CJC-1295 with DAC | Growth-hormone | 2 n=2 | n<3 | 98.79 | — | 97.5 | 100 |
| Adipotide | Metabolic | 2 n=2 | n<3 | 98.59 | — | 96.0 | 100 |
| N-Acetyl Semax Amide | Neuroactive | 2 n=2 | n<3 | 99.26 | — | 98.5 | 50 |
| VIP | Tissue-repair | 2 n=2 | n<3 | 98.22 | — | 97.5 | 100 |
| MGF | Growth-hormone | 2 n=2 | n<3 | 98.73 | — | 97.5 | 100 |
| GHRP-6 | Growth-hormone | 1 n=1 | n<3 | 99.65 | — | 99.0 | 100 |
Full per-compound breakdown with distributions and caveats →
Block 8
Quarterly trend
Submission volume is not market share and a quarterly median is not a trend unless the compound mix held still. Both caveats apply to every row below.
Median purity by quarter
Quarters with fewer than two purity records are gaps in the line rather than zeroes.
Coverage growth
Records added per quarter. Growth here is index coverage, not supplier volume.
| Quarter | Batches | Reports | Median purity | Range | Flagged |
|---|---|---|---|---|---|
| 2024-Q1 | 3 | 18 | 98.47 | 96.82–99.93 | 18 |
| 2024-Q2 | 5 | 29 | 99.00 | 97.07–99.93 | 29 |
| 2024-Q3 | 5 | 37 | 99.20 | 97.93–99.93 | 27 |
| 2024-Q4 | 8 | 44 | 99.38 | 96.52–99.93 | 34 |
| 2025-Q1 | 11 | 84 | 99.11 | 97.35–99.93 | 69 |
| 2025-Q2 | 7 | 34 | 99.23 | 98.29–99.93 | 27 |
| 2025-Q3 | 17 | 87 | 98.68 | 96.87–99.92 | 77 |
| 2025-Q4 | 11 | 54 | 99.35 | 97.97–99.93 | 25 |
| 2026-Q1 | 10 | 61 | 98.93 | 97.64–99.93 | 43 |
| 2026-Q2 | 14 | 83 | 99.25 | 98.26–99.93 | 38 |
| 2026-Q3 | 8 | 42 | 98.71 | 97.69–99.93 | 29 |
Block 9
Which laboratory produced these numbers
Laboratories disagree with each other by a measured amount. A supplier tested mostly by one laboratory carries that laboratory's offset in its aggregate, and the adjusted column removes it.
| Laboratory | Reports | Median purity | Lab bias (pp) | Bias-adjusted |
|---|---|---|---|---|
| Janoshik | 254 | 98.99 | +0.00 | 98.99 |
| PeptideMeter | 112 | 99.08 | -0.05 | 99.13 |
| Medutest | 78 | 99.46 | +0.08 | 99.38 |
| VendorInvestigate | 44 | 98.63 | -0.11 | 98.74 |
| Nordanalyt | 42 | 98.85 | +0.02 | 98.83 |
| Kestrel | 43 | 99.64 | +0.24 | 99.40 |
Bias figures are estimated from paired same-lot comparisons and are published with their confidence intervals on inter-lab agreement.
Block 10
What this data does and does not show
Block 11
On-the-record reviews 26
Reviews are signed statements from index contributors about their own testing of this supplier's material. They are opinions attached to evidence, and they are not used in any statistic on this page.
94.0/ 100481 ratings across the index network
a.correia95/100
Tenth order from them, all sermorelin 5 mg. Sent one vial from each to Janoshik and the whole set landed inside half a point of each other. That flatness is exactly what I pay for.
au.marchand95/100
Weighed 8 vials from the ipamorelin 5 mg order against label. Every one inside 2% of stated mass. Fill consistency is harder than purity and they have it.
ro.kjaer91/100
Straightforward order, arrived as described, documentation adequate and complete. Nothing to add, which is the point.
so.beaulieu95/100
Quoted 4 days, arrived in 3. Tracking updated at every hop from dispatch to door.
r.ferrari91/100
Held locally in Australia, so the semaglutide 5 mg arrived on day 5 without an import step.
t.amankwah95/100
Vial labels printed rather than handwritten, lot and date legible, cap seal intact on every unit.
i.chowdhury95/100
Ordered on a Monday from their warehouse in Germany and it was here by day 3. That is the whole case for regional stock.
t.perrin91/100
Good communication throughout, accurate lead time, and the parcel arrived on day 3.
t.adeyemi95/100
The certificate for lot TFC-26-475 carried method, wavelength, water content and an itemised related-substances table. Complete on the first pass.
em.mbeki95/100
The LL-37 5 mg arrived on day 3 with the cold pack intact and the seal unbroken. Straightforward, exactly as described.
br.vanhecke95/100
Reconstituted the MOTS-c 10 mg and it went clear on contact — no haze, no floaters, no long swirl. Tells you the lyophilisation was done properly.
a.kuusela95/100
Moved here after two bad lots elsewhere. 8 orders in and the VendorInvestigate numbers have been flat every single time.
a.karlsen91/100
Solid on the NAD+ 500 mg. Purity where it should be, transit 2 days, paperwork in order.
ne.kuusela95/100
Their warehouse in Canada carries the lines I reorder, so there is no wait on a factory run. Day 2 every time.
j.roos95/100
8 orders in eighteen months, no substitutions, no reformulations, everything in stock when the site said it was. Boring is the highest compliment I have.
a.ferreira95/100
First order, deliberately small, hexarelin 5 mg only. Documentation, transit and a VendorInvestigate result at 98.8% all checked out, so the next one will not be small.
f.bakken95/100
Asked a genuinely technical question about pre-dispatch storage and got a reply with numbers in it, inside 4 hours.
z.antonsen91/100
Third order and it went the same way as the first two. Predictable in the way you want a supplier to be.
g.zielinski95/100
Shipped with a stated storage recommendation and a shelf-life figure tied to it, without my asking.
v.wojcik95/100
5 lots logged now, purity 97.8 to 98.2%. A band that tight is worth more to me than one spectacular number.
a.petrescu95/100
Regional stock makes the difference — dispatched within Germany, day 5, cold pack still hard on arrival.
z.mwangi91/100
Fair pricing for the documentation standard, and delivery landed on day 4 as quoted.
to.adeyemi95/100
Reordered on the strength of the last one and got an identical result. Repeatability is the product.
i.dahlberg91/100
Domestic dispatch from their stock in the United Kingdom. Straightforward, day 5, exactly as quoted.
k.petrov91/100
Everything about the order was routine in the best sense — quoted 4 days, arrived in 4.
Block 12