Thymosin Alpha-1 10mg research vial
Thymosin alpha-1 is a natural 28 amino acid peptide first found in the thymus gland; one 10mg vial costs 3,900,000 VND ($155 USD). Thymosin alpha-1's price dates from 11 October 2026, and its two trials and review below are linked to PubMed. Thymosin alpha-1 is the active ingredient of a medicine used in a number of countries, as the 2007 review below notes. What you buy here is a research vial: not that medicine, and not approved for use in people.
What is Thymosin Alpha-1?
The thymus is the gland where immune T cells mature. Thymosin alpha-1 was first described in 1972.
Many of its human trials come from China, and they span hepatitis B and sepsis.
Thymosin alpha-1 in human trials
- Review, 2007. A review of thymosin alpha-1 as a natural regulator of inflammation and the immune system. It notes the peptide is used as a medicine in a number of countries.
- Human trial, 2005. A randomized study of 56 people with long-term hepatitis B compared it with interferon, tracking response and side effects.
- Human trial, 2013. 361 adults with severe sepsis joined a single-blind randomized trial, with deaths at 28 days as the main measure.
Read that sepsis trial next to a bigger one. A 2025 phase 3 trial in 1,106 adults with sepsis set thymosin alpha-1 against a placebo and counted deaths at 28 days, and it found no clear difference between the two groups.
How to read this
Thymosin alpha-1 has many human trials, so the work is in weighing them. The hepatitis B study compared it with interferon in 56 people. The 2013 sepsis trial had 361 adults and was single-blind. The 2025 sepsis trial was far larger, with 1,106 adults against a placebo, and it found no clear difference in deaths at 28 days. Size matters when you weigh trials: a far larger trial usually carries more weight than a smaller one.
The Thymosin Alpha-1 paper trail
The 2005 study was randomized. It set thymosin alpha-1 against interferon in long-term hepatitis B. The 2013 sepsis trial ran in the journal Critical Care. A larger 2025 phase 3 trial in 1,106 adults with sepsis ran in the BMJ. It found no clear difference in deaths at 28 days.
Sources: PubMed record 17495242 (review, 2007); A randomized, controlled, clinical study of thymosin alpha-1 versus interferon-alpha in [corrected] patients with chronic hepatitis B lacking HBeAg in China [corrected]; PubMed record 23327199 (human trial, 2013); PubMed record 39814420 (2025 phase 3 sepsis trial).
How much does Thymosin Alpha-1 cost per pack?
| Pack | Price | Per vial | Per mg |
|---|---|---|---|
| 1 vial | 3,900,000 VND ($155 USD) | 3,900,000 VND ($155 USD) | 390,000 VND ($15.50 USD) |
| 3 vials | 9,477,000 VND ($376.65 USD) | 3,159,000 VND ($125.55 USD) | 315,900 VND ($12.56 USD) |
| 5 vials | 14,040,000 VND ($558 USD) | 2,808,000 VND ($111.60 USD) | 280,800 VND ($11.16 USD) |
| 10 vials | 23,400,000 VND ($930 USD) | 2,340,000 VND ($93 USD) | 234,000 VND ($9.30 USD) |
Questions about Thymosin Alpha-1
What has research on Thymosin Alpha-1 looked at?
Immune research and human trials in hepatitis B and sepsis. A 2025 phase 3 sepsis trial in 1,106 adults found no clear difference in deaths from placebo.
What are the differences between thymalin and thymosin alpha 1?
Thymosin alpha-1 is one defined peptide, 28 amino acids long, first described in 1972. Thymalin, by contrast, is an extract: several small peptides drawn from the thymus glands of animals. Both trace back to the thymus, but their research is separate.
How big is the thymosin alpha-1 record?
Large for a peptide: 965 PubMed records came back when we searched on 18 October 2026, many of them trials from China. The biggest recent one, a 2025 sepsis trial in 1,106 adults, found no clear difference in 28 day deaths against placebo.
By Peptides Ho Chi Minh, 11 October 2026