Checked October 19, 2026 · 74 vendors

TB-500 prices (October 2026)

Synthetic fragment of thymosin beta-4 used in repair research. Below: every US vendor we track that sells TB-500, cheapest per milligram first. The lowest in-stock price this week is $2.50/mg at Bulk Peptide Supply.

Lowest per mg: $2.50
Median per mg: $7.00
Cheapest with COA: $2.50
Vendor publishes COAs: 88%

TB-500 prices, cheapest per mg

▼ cheaper / ▲ dearer than last week

1
Bulk Peptide Supply4.0
TB-500 10mg
COA
$25.00
10 mg
$2.50/mg
New
Check price
bulkpeptidesupply.com
2
Anhydrolabs1.0
TB-500 10mg
No COA
$32.17
10 mg
$3.22/mg
New
Check price
anhydrolabs.com
3
Go Alpha Labs4.2
TB-500 10mg
COA
$34.99~~$49.99~~
10 mg
$3.50/mg
New
Check price
goalphalabs.com
4
Modified Aminos6.5
TB-500 10mg
COA
$39.99
10 mg
$4.00/mg
New
Check price
modifiedaminos.shop
5
Swiss Chems7.2
TB-500 (Thymosin Beta-4) 10mg
COA3 sizes: 2 mg $23.96 · 5 mg $35.16 · 10 mg $42.36
$42.36~~$63.98~~
10 mg
$4.24/mg
New
Check price
swisschems.is
6
Transition Biotech6.5
TB-500 10mg
COA
$44.99
10 mg
$4.50/mg
New
Check price
transitionbiotech.com
7
Coffee and Peppers1.0
TB-500 10mg
No COA
$44.99~~$54.99~~
10 mg
$4.50/mg
New
Check price
coffeeandpeppers.com
8
Tydes6.0
TB-500 (Thymosin Beta 4) 25mg
COA2 sizes: 10 mg $64.99 · 25 mg $120
$120~~$125~~
25 mg
$4.80/mg
New
Check price
tydes.is
9
Drexa Labs3.5
TB-500 10mg
COA
$49.00
10 mg
$4.90/mg
New
Check price
drexalabs.com
10
Thrive Peptides6.0
TB-500 10mg
COA
$49.99~~$59.99~~
10 mg
$5.00/mg
New
Check price
thrivepeptides.us
11
Peptide Plugs8.1
TB-500 10mg
COA
$50.00
10 mg
$5.00/mg
New
Check price
peptideplugs.com
12
Pura Peptides1.0
TB-500 10mg
No COA
$50.00~~$70.00~~
10 mg
$5.00/mg
New
Check price
purapeptides.com
13
Peptidology6.0
TB-500 10.8mg
COA2 sizes: 10 mg $56.99 · 10.8 mg $55.00
$55.00
10.8 mg
$5.09/mg
New
Check price
peptidology.co
14
Skye Peptides1.0
TB-500 (Thymosin Beta-4)(43 aa) 25mg
No COA2 sizes: 10 mg $69.00 · 25 mg $129
$129
25 mg
$5.16/mg
New
Check price
skyepeptides.com
15
Kyreon6.0
TB-500 10mg
COA
$54.00
10 mg
$5.40/mg
New
Check price
kyreon.co
16
Oasis Labs6.0
TB-500 10mg
COA
$57.00
10 mg
$5.70/mg
New
Check price
myoasislabs.com
17
AminoVault4.0
TB-500 10mg
COA
$58.65~~$69.00~~
10 mg
$5.87/mg
New
Check price
aminovault.com
18
Modern Aminos5.5
TB-500 (Thymosin Beta-4) 10mg
COA2 sizes: 5 mg $34.00 · 10 mg $59.00
$59.00
10 mg
$5.90/mg
New
Check price
modernaminos.com
19
Hello Stacks6.0
THYMOSIN BETA-4 (TB-500) 10mg
COA
$59.00
10 mg
$5.90/mg
New
Check price
hellostacks.com
20
Peptide Crafters3.5
TB-500 Thymosin Beta-4 10mg
COA
$60.00
10 mg
$6.00/mg
New
Check price
peptidecrafters.com
21
Verified Peptides6.0
TB-500 Peptide (TB4) 10mg
COA
$62.00
10 mg
$6.20/mg
New
Check price
verifiedpeptides.com
22
Honest Peptide4.0
TB-500 10mg
COA
$63.00
10 mg
$6.30/mg
New
Check price
honestpeptide.com
23
Elite Research USA7.0
TB-500 Research Peptide 10mg
COA
$64.99
10 mg
$6.50/mg
New
Check price
eliteresearchlab.com
24
Blank Peptides7.8
TB-500 10mg
COA
$65.00
10 mg
$6.50/mg
New
Check price
Code CHECKED
25
Atomik Labz1.0
TB-500 (Thymosin Beta-4) (43 AA) 10mg
No COA2 sizes: 10 mg $65.00 · 20 mg $130
$65.00
10 mg
$6.50/mg
New
Check price
atomiklabzpeptides.com
26
Prime Peptides7.0
TB-500 (TB4) 10mg
COA
$65.00
10 mg
$6.50/mg
New
Check price
primepeptides.co
27
Paramount Peptides4.5
Thymosin Beta 4 (TB500) 10mg
COA2 sizes: 5 mg $60.00 · 10 mg $68.00
$68.00
10 mg
$6.80/mg
New
Check price
paramountpeptides.com
28
FRO Peptides5.0
TB-500 – Research Peptide 10mg
COA
$69.99
10 mg
$7.00/mg
New
Check price
fropeptides.com
29
Alpha Pro Peptides7.5
TB-500 10mg
COA2 sizes: 5 mg $45.99 · 10 mg $69.99
$69.99
10 mg
$7.00/mg
New
Check price
alphapropeptides.com
30
Polaris Peptides1.0
TB-500 10mg
No COA
$70.00~~$80.00~~
10 mg
$7.00/mg
New
Check price
polarispeptides.com
31
Certified Peptides5.7
TB-500 10mg
COA
$70.00
10 mg
$7.00/mg
New
Check price
certified-pep.com
32
Prime Lab Peptides5.5
TB-500 10mg
COA2 sizes: 5 mg $45.00 · 10 mg $70.00
$70.00~~$92.50~~
10 mg
$7.00/mg
New
Check price
primelabpeptides.com
33
Felix Chemical Supply1.0
TB-500 10mg
No COA
$70.00
10 mg
$7.00/mg
New
Check price
felixchem.is
34
Peptides Source5.0
TB500 (Thymosin B4 Acetate) 10mg
COA
$70.00
10 mg
$7.00/mg
New
Check price
peptidessource.com
35
NextGenPeps8.0
TB-500 Peptide 10mg
COA
$72.00
10 mg
$7.20/mg
New
Check price
nextgenpeps.com
36
NuScience Peptides4.5
TB500 Peptide – Research-Grade Thymosin Beta-4 10mg
COA2 sizes: 5 mg $39.99 · 10 mg $74.99
$74.99~~$89.99~~
10 mg
$7.50/mg
New
Check price
nusciencepeptides.com
37
Ameano Peptides3.0
TB-500 (Thymosin Beta-4) 10mg
COA
$75.00
10 mg
$7.50/mg
New
Check price
ameanopeptides.com
38
PurePeptides2.5
Thymosin Beta 4 10mg
COA
$75.00
10 mg
$7.50/mg
New
Check price
purepeptides.bio
39
VERATIS5.0
TB-500 10mg
COA
$75.00
10 mg
$7.50/mg
New
Check price
veratisbio.com
40
Arctic Lab Supply6.0
TB-500 5mg
COA
$37.99
5 mg
$7.60/mg
New
Check price
arcticlabsupply.com
41
PSPeptides7.0
TB-500 1 10mg
COA2 sizes: 5 mg $44.99 · 10 mg $79.99
$79.99
10 mg
$8.00/mg
New
Check price
Code CHECKED
42
Amino USA4.7
TB-500 5mg
COA2 sizes: 5 mg $40.00 · 10 mg $80.00
$40.00
5 mg
$8.00/mg
New
Check price
aminousa.com
43
Protide Health6.5
TB-500 (Thymosin Beta-4) 10mg
COA
$85.00
10 mg
$8.50/mg
New
Check price
protidehealth.com
44
Pure Peptide Labs6.4
TB-500 5mg
COA2 sizes: 5 mg $44.95 · 10 mg $89.95
$44.95
5 mg
$8.99/mg
New
Check price
purepeptidelabs.shop
45
Pulse Peptide Labs2.0
TB-500 10mg
COA
$90.00
10 mg
$9.00/mg
New
Check price
pulsepeptidelabs.com
46
Rhome Research2.9
Thymosin Beta-4 10mg
COA
$94.99
10 mg
$9.50/mg
New
Check price
rhomeresearch.com
47
BioInfinity7.5
TB-500 10mg
COA2 sizes: 5 mg $55.00 · 10 mg $95.00
$95.00
10 mg
$9.50/mg
New
Check price
bioinfinity.co
48
Loti Labs3.0
Buy TB-500 - Premium Quality Peptides at Loti Labs 5mg
COA2 sizes: 2 mg $29.99 · 5 mg $49.99
$49.99
5 mg
$10.00/mg
New
Check price
lotilabs.com
49
Pinnacle Peptide Labs1.0
TB-500 [] 5mg
COA
$49.99
5 mg
$10.00/mg
New
Check price
pinnaclepeptidelabs.com
50
Licensed Peptides7.4
TB-500 (Thymosin Beta-4) 10mg
COA
$99.99~~$111~~
10 mg
$10.00/mg
New
Check price
Code Affiliate5
51
American Peptides7.6
TB-500 10mg
COA
$100
10 mg
$10.00/mg
New
Check price
americanpeptides.us
52
Ascension Peptides7.4
TB-500 5mg
COA
$54.00~~$60.00~~
5 mg
$10.80/mg
New
Check price
Code AFFILIATE50OFF
53
Curo5.0
TB-500 5mg
COA
$54.00
5 mg
$10.80/mg
New
Check price
curo.you
54
Nextday Peptides5.5
TB-500 Research Peptide 10mg
COA
$110
10 mg
$11.00/mg
New
Check price
nextdaypeptides.com
55
Biotech Peptides3.0
TB-500 (Thymosin Beta-4) 10mg
COA2 sizes: 5 mg $72.00 · 10 mg $124
$124
10 mg
$12.40/mg
New
Check price
biotechpeptides.com
56
Cernum Biosciences2.5
TB-500 10mg
COA2 sizes: 5 mg $79.99 · 10 mg $130
$130
10 mg
$13.00/mg
New
Check price
cernumbiosciences.com
57
Peptide Partners4.5
TB-500 TB4 10mg
COA
$130~~$230~~
10 mg
$13.00/mg
New
Check price
peptide.partners
58
Warrior Makers6.1
TB-500 (Thymosin Beta-4) 10mg
COA
$139
10 mg
$13.90/mg
New
Check price
warrior-makers.com
59
Sports Technology Labs5.5
TB-500 5mg
COA
$69.99
5 mg
$14.00/mg
New
Check price
sportstechnologylabs.com
60
Core Peptides6.5
TB-500 (Thymosin Beta 4) 10mg
COA2 sizes: 5 mg $78.00 · 10 mg $140
$140
10 mg
$14.00/mg
New
Check price
corepeptides.com
61
Based Research4.0
Thymosin Beta 4 (TB500) 10mg
COA2 sizes: 5 mg $75.00 · 10 mg $140
$140
10 mg
$14.00/mg
New
Check price
based-research.com
62
Masters Peptides (M-Peptides)3.5
Thymosin Beta 4 (TB500) 10mg
COA2 sizes: 5 mg $76.00 · 10 mg $141
$141
10 mg
$14.10/mg
New
Check price
mpeptides.com
63
Raw Amino1.0
TB-500 10mg
No COA2 sizes: 5 mg $78.00 · 10 mg $152
$152
10 mg
$15.20/mg
New
Check price
rawamino.com
64
BioLongevity Labs5.5
TB-500 10mg
COA
$165
10 mg
$16.50/mg
New
Check price
biolongevitylabs.com
65
Peptide Pros2.0
TB-500 (Thymosin B4) 2mg
COA
$37.25~~$47.99~~
2 mg
$18.63/mg
New
Check price
peptidepros.net
66
Peptara Labs6.5
TB-500 10mg
COA
$220
10 mg
$22.00/mg
New
Check price
peptaralabs.io
67
Steady Meds5.5
TB500 （TB10） 10mg (per vial, 10-vial kit $110)
COA3 sizes: 2 mg $5.10 · 5 mg $6.00 · 10 mg $11.00
$11.00
10 mg
$1.10/mg
New
Check price
steadymeds.com
68
HealthTide Biotech1.0
TB500Thymosin B4 Acetate） 20mg (per vial, 10-vial kit $230)
No COA3 sizes: 5 mg $7.00 · 10 mg $12.00 · 20 mg $23.00
$23.00
20 mg
$1.15/mg
New
Check price
health-tides.com
69
Uther4.0
TB-500 (10 Vials / Kit) 10mg (per vial, 10-vial kit $130)
COA
$13.00
10 mg
$1.30/mg
New
Check price
utherpeptide.com
70
SaiyanMed6.0
TB-500 (Thymosin Beta-4) 10mg (per vial, 10-vial kit $184)
COA2 sizes: 5 mg $10.30 · 10 mg $18.40
$18.40
10 mg
$1.84/mg
New
Check price
saiyanmed.com
71
Chimera Peptides3.0
TB500 (Thymosin Beta-4) 10mg (per vial, 10-vial kit $204)
COA3 sizes: 2 mg $9.50 · 5 mg $13.00 · 10 mg $20.40
$20.40
10 mg
$2.04/mg
New
Check price
chimera-peptides.com
72
Glacier Aminos6.4
TB-500 (10-Pack) 10mg (per vial, 10-vial kit $442.42)
COA
$44.24
10 mg
$4.42/mg
New
Check price
glacieraminos.shop
–
Southern Aminos2.5
TB-500 10mg
No COAOut of stock
$48.00~~$60.00~~
10 mg
$4.80/mg
New
Check price
southernaminos.com
–
LabFirst Peptides6.0
TB-500 10mg
COAOut of stock2 sizes: 5 mg $54.00 · 10 mg $75.00
$75.00
10 mg
$7.50/mg
New
Check price
labfirstpeptides.com

Prices are the vendor's list price for one vial on the check date, in USD, before shipping. Ranked by price per mg; vendors that only sell multi-vial kits are listed after single-vial prices, at the per-vial price; sponsorship never changes the order. Links marked "Check price" may earn us a commission.

TB-500 price history

Price history starts with our first weekly check. Each re-check adds a point here, so the chart fills in week by week.

Research use only. The compounds referenced on this page are sold for laboratory research purposes only. They are not drugs, foods, cosmetics or dietary supplements, and they are not approved by the FDA for human or veterinary use. Nothing on this page is medical advice. PeptideChecked does not sell peptides, does not provide dosing guidance, and does not recommend the use of any compound in humans.

FAQ

TB-500 price questions

Where is TB-500 cheapest?

On October 19, 2026, the lowest TB-500 price per mg among in-stock vendors was Bulk Peptide Supply at $2.50/mg ($25.00 for 10 mg).

How much does TB-500 cost per mg?

The median across 66 in-stock vendors was $7.00 per mg on October 19, 2026, with a range of $2.50 to $22.00.

How often are these prices checked?

Weekly. We read each price from the vendor's own product page and save every check, so each row shows the change since last week.

What does the COA badge mean?

The vendor publishes certificates of analysis (lab reports) for its products on its own site. 88% of the in-stock offers above come from vendors that do. Check that a report exists for the exact product and lot you order: a COA shows what a lab measured for one batch, not a guarantee about the vial you receive.