476 third-party lab reports published Code BIRTHDAY35 takes 35% off compound vials and capsules, enter it at checkout, and the build-a-kit discount stacks on top, applied automatically in the cart: 3% off 3โ€“9 · 5% off 10โ€“19 · 7% off 20+ units · solvents and lab supplies excluded. Ends Sunday, November 1. For research use only. 99.64% median purity across 269 lots 254 / 254 lots pass sterility
Birthday sale
CodeBIRTHDAY35: 35% off compound vials and capsules
Build a kit3% at 3โ€“9 ยท 5% at 10โ€“19 ยท 7% at 20+ units
TogetherEnter the code at checkout; the build-a-kit discount is added automatically
ExcludesDiluents and solvents, lab supplies and equipment ยท Ends Sunday, November 1

Code BIRTHDAY35 takes 35% off compound vials and capsules, enter it at checkout; the build-a-kit discount stacks on top: 3% at 3โ€“9 ยท 5% at 10โ€“19 ยท 7% at 20+ units.Diluents and solvents, lab supplies and equipment excluded ยท Ends Sunday, November 1 ยท Research use only

Research use only

Thymosin Alpha 1 + Thymulin

โ˜… 4.8 (739 ratings) Read research feedback โ€บ
200,000+ units shipped ยท 3 in 4 orders are reorders
9 tests ยท Batch 1668 ยท 99.70% purity
Vanguard Laboratory + Eagle Analytical Services Inc.
Verify online โ†—
Quantity
Code BIRTHDAY35 doesnโ€™t apply to this size This size is on sale at its own price. The code covers our other compound vials and capsules. Ends Sunday, November 1.

For research use only. Not intended for diagnostic or therapeutic use. We do not work with patients.

Same-day shippingOrder by 2:30 PM MST.
Every new batch testedFull panel, independent labs.
Tested in the USALabs and support stateside.
Industry discountsLabs, clinics, defense, government and public safety.

Certificate of analysis

Current batch for this size ยท tested January 14, 2026

Batch#1668
Purity99.70%
TestsEarlier standard ยท 9 tests
TestedJanuary 14, 2026

Labs on this batch: Vanguard Laboratory (ISO 17025:2017 / A2LA #6377.01.01) ยท Eagle Analytical Services Inc.

9 tests ยท 5 not on this report

IdentityUSP <621> ยท HPLC-UV/VIS
Matches reference standardVanguard
PASS
Chromatographic purityUSP <621> ยท HPLC-UV/VIS
99.70%Vanguard ยท 1 vial tested
PASS
Content: TA-1USP <621> ยท HPLC-UV/VIS
10.72 mgof 10 mg ยท 107% ยท Vanguard ยท 1 vial tested
PASS
Content: ThymulinUSP <621> ยท HPLC-UV/VIS
10.04 mgof 10 mg ยท 100% ยท Vanguard ยท 1 vial tested
PASS
Adulterant screenHPLC-UV/VIS
Not on this report
โ€”
Heavy metalsUSP <232> / <233> ยท ICP-MS
ND ยท 0.01 ppmVanguard ยท 1 vial tested
PASS
EndotoxinsUSP <85> ยท LAL
PassVanguard ยท 1 vial tested
PASS
Residual solventsUSP <467> ยท GC-MS
Not on this report
โ€”
Trifluoroacetic acid (TFA)USP <503.1> ยท ion chromatography
Not on this report
โ€”
Container closure integrityUSP <1207> ยท dye ingress
Not on this report
โ€”
SolubilityUSP <1236> ยท visual
Not on this report
โ€”
SterilityUSP <71> ยท membrane filtration
PassVanguard ยท 1 vial tested
PASS
Sterility, rapid methodalternative to USP <71> ยท ScanRDI
PassEagle Analytical
PASS
ConformityQA approval
PASSVanguard
PASS
All batchesNewest first · every batch we’ve released for this product
Batch 166820 mg Jan 14, 202699.70%9 tests On sale Showing

Common questions

From the help center · All articles ›

Tech specs

Form
Lyophilized powder
Blend
TA-1 10 mg ยท Thymulin 10 mg (20 mg)
Methods
HPLC-UV/VIS ยท ICP-MS ยท LAL ยท membrane filtration ยท ScanRDI

Important research notice. This product is sold exclusively for in-vitro laboratory and research use. It is not a drug, supplement, cosmetic, or food, and is not intended to diagnose, treat, cure, or prevent any condition. For research use only. Not intended for diagnostic or therapeutic use. We do not work with patients. By purchasing, you confirm you are a qualified researcher aged 21 or older.

0

Research use only

For research use only. Not intended for diagnostic or therapeutic use.

By continuing, you confirm that you are at least 21 years old and that any items you purchase will be used solely for research purposes.

JavaScript is required to browse after confirming. Your confirmation is recorded either way.

We can't show you the catalog

Peptidology supplies research-use-only materials to qualified researchers aged 21 and over. Certificates and company information remain open to everyone.

View certificates