A synthetic 28-amino-acid immune-modulating peptide (thymalfasin) studied mainly in chronic hepatitis B, sepsis, and other infectious-disease settings rather than as a general immune booster. Compare Thymosin alpha-1 prices from $30 across 58 indexed vendors, with per-mg pricing and third-party COA verification.
| Vendor | Dose | Price | Per mg | Lab COA |
|---|---|---|---|---|
| HK Qiangtai | 2 mg | $30 | $15/mg | — |
| Zhuoyue Peptide | 2 mg | $42.85 | $21.43/mg | — |
| VendorPep | 2 mg | $43.6 | $21.8/mg | — |
| Chengtong Peptide | 2 mg | $45 | $22.5/mg | — |
| Homopeptide | 2 mg | $48 | $24/mg | — |
| THS Peptide | 2 mg | $50 | $25/mg | Yes |
| QYC (Amy) | 2 mg | $50 | $25/mg | — |
| TRANMOO | 2 mg | $63 | $31.5/mg | — |
| AMSpeps | 5 mg | $69 | $13.8/mg | — |
| Guangsheng (Lyla) | 5 mg | $72 | $14.4/mg | — |
| Zhuoyue Peptide | 5 mg | $72.85 | $14.57/mg | — |
| VendorPep | 5 mg | $73.2 | $14.64/mg | — |
| QYC (Amy) | 5 mg | $75 | $15/mg | — |
| Rayshine Peptide | 5 mg | $75 | $15/mg | — |
| HK Qiangtai | 5 mg | $75 | $15/mg | — |
| GanZhu Peptide （Verna） | 5 mg | $75 | $15/mg | — |
| QH Peptide | 5 mg | $76 | $15.2/mg | — |
| LB Peptide | 5 mg | $78 | $15.6/mg | — |
| Homopeptide | 5 mg | $80 | $16/mg | — |
| QSC (Tracy) | 5 mg | $80 | $16/mg | — |
| Tanran Peptide | 5 mg | $80 | $16/mg | — |
| Genxell | 5 mg | $80 | $16/mg | — |
| Chengtong Peptide | 5 mg | $80 | $16/mg | — |
| THS Peptide | 5 mg | $83 | $16.6/mg | Yes |
| JM Peptide | 5 mg | $85 | $17/mg | — |
| XBT Peptides | 5 mg | $85 | $17/mg | — |
| Xjun Peptide | 5 mg | $85 | $17/mg | — |
| TB-Peptide | 5 mg | $88 | $17.6/mg | — |
| BOC Peptide | 5 mg | $88 | $17.6/mg | — |
| AD Peptide | 5 mg | $90 | $18/mg | — |
| TR Peptide | 5 mg | $90 | $18/mg | — |
| TP Peptide | 5 mg | $90 | $18/mg | — |
| Jinhe Biotechnology Global (JBG) | 5 mg | $90 | $18/mg | — |
| Guangzhou Pengjiao Trading Co., Ltd. | 5 mg | $93.1 | $18.62/mg | Yes |
| MKM Peptides | 5 mg | $95 | $19/mg | Yes |
| LKZ Peptide | 5 mg | $95 | $19/mg | — |
| APM Peptide | 5 mg | $95 | $19/mg | — |
| CGL Peptide | 5 mg | $95 | $19/mg | — |
| GHK Peptide Factory | 5 mg | $95 | $19/mg | — |
| APKX | 5 mg | $99 | $19.8/mg | — |
| Andy-Peps-Studio(APS) | 5 mg | $100 | $20/mg | — |
| MT Meipept | 5 mg | $100 | $20/mg | — |
| WBS | 5 mg | $100 | $20/mg | — |
| QST | 5 mg | $100 | $20/mg | — |
| SPB International | 5 mg | $100 | $20/mg | — |
| RL Peptide | 5 mg | $100 | $20/mg | — |
| ERP Peptide | 5 mg | $100 | $20/mg | — |
| HKKR (Mary) | 5 mg | $100 | $20/mg | — |
| TRANMOO | 5 mg | $104 | $20.8/mg | — |
| Aishi Biochem | 5 mg | $105 | $21/mg | — |
| HMMpeptide (Molly) | 5 mg | $105 | $21/mg | — |
| HHM Peptide | 5 mg | $105 | $21/mg | — |
| LylaHM peptide(Heman peptide) | 5 mg | $105 | $21/mg | — |
| HMM Peptide | 5 mg | $105 | $21/mg | — |
| PPHK (Ella) | 5 mg | $105 | $21/mg | — |
| LTP Peptides | 5 mg | $107 | $21.4/mg | — |
| ZLZ Sunny peptides | 5 mg | $109 | $21.8/mg | — |
| ZhuoYan lab | 5 mg | $109 | $21.8/mg | — |
| XH-Peptides | 5 mg | $110 | $22/mg | — |
| APM Peptide | 5 mg | $115 | $23/mg | — |