← All compoundsBuy at AMP Peptides →Buy at AMC Essentials →Buy at Felix Chemical Supply →Buy at Solyn Peptides →Buy at Solution Peptides →Buy at One Day Compounds →Buy at AlgoRX →Buy at Peptidology →Buy at Lab Sourced →Buy at Nano Blue Labs →Buy at RefillPen →Buy at Good Labs →Buy at Southern Aminos →Buy at LA Peptides →Buy at Flawless Compounds →Buy at Peptira →Buy at Biocase Innovations →Buy at FITSKNS →Buy at Throne →Buy at Glow Aminos →Out of stockOut of stock
peptide42 sources in stock
Thymosin Alpha-1
Immune-regulating peptide. Derived from thymus gland.
Immune researchInfection response research
For research use only · Not for human consumption
/ compare by size
Every source for Thymosin Alpha-1
Affiliate disclosure: purchases through links below may earn us a commission. Rankings are never sold — methodology · full disclosure
Size:
20 sources for 5mg·cheapest $35.00 at AMP Peptides·$7.00/mg
Rank
Source
Trust Score
Price
$/mg
Buy
#1
AMP PeptidesBEST
★ 4.8
$35.00
$7.00/mg
#2
AMC Essentials
★ 4.6
$39.99
$8.00/mg
#3
Felix Chemical Supply
★ 4.5· price unverified
$70.24
$14.05/mg
#4
Solyn Peptides
★ 4.5· price unverified
$73.42
$14.68/mg
#5
Solution Peptides
★ 4.6· price unverified
$87.40
$17.48/mg
#6
One Day Compounds
★ 4.6· price unverified
$121.43
$92.15
$18.43/mg
#7
AlgoRX
★ 4.7· price unverified
$109.30
$92.35
$18.47/mg
#8
Peptidology
★ 4.8· price unverified
$96.45
$19.29/mg
#9
Lab Sourced
★ 4.7· price unverified
$98.18
$19.64/mg
#10
Nano Blue Labs
★ 4.6· price unverified
$105.82
$21.16/mg
#11
RefillPen
★ 4.5· price unverified
$108.51
$21.70/mg
#12
Good Labs
★ 4.7· price unverified
$137.86
$116.59
$23.32/mg
#13
Southern Aminos
★ 4.6· price unverified
$152.75
$116.95
$23.39/mg
#14
LA Peptides
★ 4.6· price unverified
$117.89
$23.58/mg
#15
Flawless Compounds
★ 4.7· price unverified
$124.27
$24.85/mg
#16
Peptira
★ 4.6· price unverified
$130.60
$26.12/mg
#17
Biocase Innovations
★ 4.6· price unverified
$136.66
$27.33/mg
#18
FITSKNS
★ 4.6· price unverified
$141.73
$28.35/mg
#19
Throne
★ 4.7· price unverified
$143.27
$28.65/mg
#20
Glow Aminos
★ 4.5· price unverified
$172.86
$147.21
$29.44/mg
#21
RetaOneLabs
★ 4.7· price unverified
$74.81
$14.96/mg
#22
Modified Aminos
★ 4.5· price unverified
$83.63
$16.73/mg
🏆Our pick for Thymosin Alpha-1
Ascension Peptides
10mg · USA · Card / Crypto / Zelle
- ✓Third-party tested (Janoshik)
- ✓COAs provided — Per-batch core, quarterly bonus
- ✓Best $/mg in stock right now
- ✓4.8★ community rating
Also solid
/ research index
The research base
Research Maturity
★★★★☆
4/5 — Volume of studies
Evidence Strength
★★★★☆
4/5 — Quality of evidence
80+ studies. Approved in 35+ countries for immune research.
/ mechanism of action
How it works
T-cell maturation and immune response modulation.
/ research dosing
Common research protocols
Range
1.6 mg, 2x weekly
Frequency
2x weekly (e.g., Mon/Thu)
Route
Subcutaneous
Cycle
8-12 weeks per cycle
Research notes
FDA-approved in some countries as Zadaxin. Standard immune research dose is 1.6mg twice weekly. Well-tolerated profile.
References
FOR RESEARCH USE ONLY. Doses listed are compiled from published research literature, FDA-approved drug labels, and well-documented research community practice. Not medical advice.
/ standalone use
As a solo compound
Standard standalone use.
/ side effects
What to know
Minimal. Very safe profile.
/ timeline
Realistic expectations
Effects observed within weeks
FOR RESEARCH USE ONLY. Thymosin Alpha-1 is intended for laboratory research and not for human consumption.