T4 (Levothyroxine)
28
Vendors
65
Samples
7.0
Average score
24 May 2026
Latest assay
| № | Vendor | Rating | Samples | Avg | Min | Max | Most recent |
|---|---|---|---|---|---|---|---|
| 1 | Tianjin Finder Chemical TFC | A | 6 | 10.0 | 9.9 | 10.0 | 16 Apr 2026 |
| 2 | Homopeptide | A | 4 | 9.9 | 9.9 | 10.0 | 24 May 2026 |
| 3 | Qingdao Sigma Chemical QSC | A | 3 | 9.3 | 8.6 | 10.0 | 21 May 2026 |
| 4 | Nantong Guangyuan Chemical GYC | A | 7 | 8.8 | 7.3 | 9.6 | 24 May 2026 |
| 5 | Wuhan Wansheng Bio (WWB) | A | 6 | 8.6 | 7.0 | 9.5 | 24 May 2026 |
| 6 | Shanghai Sigma Audley SSA | A | 4 | 8.2 | 7.3 | 9.5 | 24 May 2026 |
| 7 | Glbiochem (Shanghai) | A | 3 | 7.9 | 7.5 | 8.3 | 25 May 2026 |
| 8 | Bulk Peptide Wholesale | X | 1 | 10.0 | 10.0 | 10.0 | 3 Jun 2025 |
| 9 | Peptide Technologies | X | 1 | 10.0 | 10.0 | 10.0 | 28 Mar 2025 |
| 10 | Hunan Ruiwang Technology Center | X | 1 | 9.1 | 9.1 | 9.1 | 6 May 2025 |
| 11 | Shanghai Leader Peptide Biotechnology | X | 1 | 8.6 | 8.6 | 8.6 | 6 May 2025 |
| 12 | ZZQ Peptides | X | 1 | 8.6 | 8.6 | 8.6 | 16 Mar 2025 |
| 13 | Top Peptide | X | 1 | 8.6 | 8.6 | 8.6 | 25 Apr 2025 |
| 14 | Pure Tested Peptides | X | 1 | 7.8 | 7.8 | 7.8 | 2 Apr 2025 |
| 15 | Welon Peptide Solutions | X | 1 | 7.6 | 7.6 | 7.6 | 16 Mar 2025 |
| 16 | SRY Labs | B | 10 | 7.5 | 5.6 | 10.0 | 17 May 2026 |
| 17 | Huaian Hanyou Peptide | X | 1 | 7.5 | 7.5 | 7.5 | 24 Apr 2025 |
| 18 | Haikou Mingheng Technology | X | 1 | 7.1 | 7.1 | 7.1 | 14 Jan 2025 |
| 19 | Mix Peptides | D | 2 | 6.6 | 5.0 | 8.2 | 20 May 2026 |
| 20 | Kerisite Shenzhen International | X | 1 | 6.4 | 6.4 | 6.4 | 7 May 2025 |
| 21 | Yimei | B | 3 | 5.9 | 4.9 | 6.5 | 24 May 2026 |
| 22 | Accelerate Labs | A | 2 | 5.4 | 5.2 | 5.6 | 19 Jan 2026 |
| 23 | Oasis Peptides | X | 1 | 5.4 | 5.4 | 5.4 | 25 Apr 2025 |
| 24 | Hangzhou Youngpeptide Biotechnology HYB | X | 1 | 5.4 | 5.4 | 5.4 | 2 Apr 2025 |
| 25 | Amplified Amino | X | 1 | 5.0 | 5.0 | 5.0 | 8 Jul 2025 |
| 26 | Chimera Peptides | X | 1 | 4.0 | 4.0 | 4.0 | 24 Apr 2025 |
| 27 | Coastal Peptides | X | 1 | 3.7 | 3.7 | 3.7 | 25 Apr 2025 |
| 28 | Amino Amigos | X | 1 | 3.3 | 3.3 | 3.3 | 28 Mar 2025 |