#15

TB-500

TB-500 is a synthetic thymosin beta-4 fragment peptide. CAS 885340-08-9.

CAS: 885340-08-9
Class: synthetic thymosin beta-4 fragment peptide
Also listed as: tb 500, tb500, tb 500 peptide, tb500 peptide, thymosin beta 4 fragment

Best $/mg, in stock

$2.50

Vendors

Offers

113

Prices checked

Oct 21, 2026

Lyophilized vials

$/mg = price ÷ (mg per vial × vials per listing). Out-of-stock rows sort last. US search volume 39,250/mo.

MyPurePeptide10 mg$25.002.50/mgGo

IDUN Peptides10 mg ×10$299.993.00/mgGo

Go Alpha Labs10 mg$34.993.50/mgGo

IDUN Peptides10 mg ×5$179.993.60/mgGo

Panda Peptides10 mg$39.994.00/mgGo

Better Peptide10 mg$39.994.00/mgGo

Modified Aminos10 mg$39.994.00/mgGo

Peptide Titans10 mg$39.994.00/mgGo

P3 Labs10 mg$42.004.20/mgGo

Royal Peptides10 mg ×10$420.004.20/mgGo

Peak Lab Peptides10 mg ×10$432.004.32/mgGo

GMR Peptides10 mg$44.994.50/mgGo

Simply Chems10 mg$44.994.50/mgGo

IDUN Peptides10 mg$44.994.50/mgGo

Novaglo Research10 mg$45.004.50/mgGo

Peptide.Express10 mg$45.004.50/mgGo

EZ Peptides10 mg$48.004.80/mgGo

Nexen Compounds10 mg$49.004.90/mgGo

Drexa Labs10 mg$49.004.90/mgGo

Peptide Partners10 mg ×10$490.004.90/mgGo

Panda Peptides5 mg$24.995.00/mgGo

Rivn Peptides10 mg$49.995.00/mgGo

Thrive Peptides10 mg$49.995.00/mgGo

Novaglo Research5 mg$25.005.00/mgGo

Purple Peptides10 mg$53.895.39/mgGo

Peak Lab Peptides10 mg$54.005.40/mgGo

ezPeps10 mg$54.995.50/mgGo

Apex Research Co.10 mg$55.005.50/mgGo

P3 Labs5 mg$28.005.60/mgGo

Licensed Peptides Wholesale10 mg$56.885.69/mgGo

USA Premium Peptides10 mg$57.995.80/mgGo

NextGenPeps10 mg$58.005.80/mgGo

Peptide Partners10 mg ×5$290.005.80/mgGo

AminoVault10 mg$58.655.87/mgGo

Koi Peptides10 mg$59.956.00/mgGo

Peptide Titans5 mg$29.996.00/mgGo

Eppix Labs10 mg$59.996.00/mgGo

Novaglo Research2 mg$12.006.00/mgGo

Xeno Peptides10 mg$60.006.00/mgGo

Peak Lab Peptides5 mg ×10$304.006.08/mgGo

Nationwide Peptides10 mg$61.006.10/mgGo

Aurum Peptide Labs30 mg$184.996.17/mgGo

Verified Peptides10 mg$62.006.20/mgGo

Elite Research Labs10 mg$64.996.50/mgGo

Aurum Peptide Labs10 mg$64.996.50/mgGo

Rejuven8 Peptides10 mg$65.006.50/mgGo

Prime Peptides10 mg$65.006.50/mgGo

Peptide Partners10 mg ×2$130.006.50/mgGo

Bluum Peptides10 mg$69.006.90/mgGo

Peptide Depot10 mg$69.006.90/mgGo

Premier Bio Labs10 mg$69.006.90/mgGo

Kylo Peptides10 mg$69.957.00/mgGo

Avenio Bio10 mg$69.997.00/mgGo

Peptides Source5 mg$35.007.00/mgGo

Bluum Peptides5 mg$35.007.00/mgGo

Penguin Peptides10 mg$70.007.00/mgGo

PeakForm Peptides10 mg$70.007.00/mgGo

Peptides Source10 mg$70.007.00/mgGo

Practically Natty10 mg$72.007.20/mgGo

ThreeSide Peptides10 mg$75.007.50/mgGo

TNN Peptides10 mg$75.007.50/mgGo

Peak Lab Peptides5 mg$38.007.60/mgGo

PSPeptides10 mg$79.998.00/mgGo

PeakForm Peptides5 mg$40.008.00/mgGo

Penguin Peptides5 mg$42.008.40/mgGo

Direct Peptides10 mg ×10$889.008.89/mgGo

PSPeptides5 mg$44.999.00/mgGo

Northwest Peptides10 mg$89.999.00/mgGo

TNN Peptides5 mg$45.009.00/mgGo

Nationwide Peptides5 mg$45.009.00/mgGo

Evolve Peptides10 mg$90.009.00/mgGo

Alpha Carbon Labs10 mg$90.009.00/mgGo

Oath Research10 mg$90.009.00/mgGo

Noxa Labs20 mg$180.009.00/mgGo

Direct Peptides10 mg$99.009.90/mgGo

Northwest Peptides5 mg$49.9910.00/mgGo

Licensed Peptides10 mg$99.9910.00/mgGo

Aldera Bio Labs10 mg$99.9910.00/mgGo

Evolve Peptides5 mg$50.0010.00/mgGo

Practically Natty5 mg$50.0010.00/mgGo

Value Peptides5 mg$50.0010.00/mgGo

Noxa Labs10 mg$100.0010.00/mgGo

Trulab Peptides5 mg$51.0010.20/mgGo

BioPure Peptides10 mg$104.9910.50/mgGo

Delta Peps10 mg$105.0010.50/mgGo

SF Bay Area Peptides10 mg$108.9510.89/mgGo

Glow Peptides10 mg$109.9911.00/mgGo

True Peptides5 mg$55.0011.00/mgGo

Oath Research5 mg$60.0012.00/mgGo

Biotech Peptides10 mg$124.0012.40/mgGo

Core Peptides10 mg$140.0014.00/mgGo

Based Research10 mg$140.0014.00/mgGo

Biotech Peptides5 mg$72.0014.40/mgGo

GenoScience2 mg$30.0015.00/mgGo

Penguin Peptides2 mg$30.0015.00/mgGo

Based Research5 mg$75.0015.00/mgGo

Bench Grade Peptides5 mg$76.0015.20/mgGo

Core Peptides5 mg$78.0015.60/mgGo

BioLongevity Labs10 mg$164.9716.50/mgGo

Void Research10 mg$39.99sold out4.00/mgGo

Licensed Peptides10 mg ×10$584.95sold out5.85/mgGo

Peptide.Express5 mg$30.00sold out6.00/mgGo

True Peptides10 mg$61.00sold out6.10/mgGo

Verapep20 mg$150.00sold out7.50/mgGo

Novanta Research5 mg$52.00sold out10.40/mgGo

Verapep10 mg$117.00sold out11.70/mgGo

Seus Peptides10 mg$149.99sold out15.00/mgGo

Premier Bio Labs5 mg$78.99sold out15.80/mgGo

Seus Peptides5 mg$89.99sold out18.00/mgGo

Seus Peptides2 mg$49.99sold out25.00/mgGo

				Lab		Vendor link
MyPurePeptide	10 mg	$25.00	2.50	—	Oct 21, 2026	Go
IDUN Peptides	10 mg ×10	$299.99	3.00	—	Oct 21, 2026	Go
Go Alpha Labs	10 mg	$34.99	3.50	—	Oct 21, 2026	Go
IDUN Peptides	10 mg ×5	$179.99	3.60	—	Oct 21, 2026	Go
Panda Peptides	10 mg	$39.99	4.00	—	Oct 21, 2026	Go
Better Peptide	10 mg	$39.99	4.00	—	Oct 21, 2026	Go
Modified Aminos	10 mg	$39.99	4.00	—	Oct 21, 2026	Go
Peptide Titans	10 mg	$39.99	4.00	—	Oct 21, 2026	Go
P3 Labs	10 mg	$42.00	4.20	Bioviridian99.88%	Oct 21, 2026	Go
Royal Peptides	10 mg ×10	$420.00	4.20	—	Oct 21, 2026	Go
Peak Lab Peptides	10 mg ×10	$432.00	4.32	—	Oct 21, 2026	Go
GMR Peptides	10 mg	$44.99	4.50	—	Oct 21, 2026	Go
Simply Chems	10 mg	$44.99	4.50	—	Oct 21, 2026	Go
IDUN Peptides	10 mg	$44.99	4.50	—	Oct 21, 2026	Go
Novaglo Research	10 mg	$45.00	4.50	—	Oct 21, 2026	Go
Peptide.Express	10 mg	$45.00	4.50	Mistral Diagnostics	Oct 21, 2026	Go
EZ Peptides	10 mg	$48.00	4.80	—	Oct 21, 2026	Go
Nexen Compounds	10 mg	$49.00	4.90	—	Oct 21, 2026	Go
Drexa Labs	10 mg	$49.00	4.90	—	Oct 21, 2026	Go
Peptide Partners	10 mg ×10	$490.00	4.90	—	Oct 21, 2026	Go
Panda Peptides	5 mg	$24.99	5.00	—	Oct 21, 2026	Go
Rivn Peptides	10 mg	$49.99	5.00	—	Oct 21, 2026	Go
Thrive Peptides	10 mg	$49.99	5.00	—	Oct 21, 2026	Go
Novaglo Research	5 mg	$25.00	5.00	—	Oct 21, 2026	Go
Purple Peptides	10 mg	$53.89	5.39	—	Oct 21, 2026	Go
Peak Lab Peptides	10 mg	$54.00	5.40	—	Oct 21, 2026	Go
ezPeps	10 mg	$54.99	5.50	—	Oct 21, 2026	Go
Apex Research Co.	10 mg	$55.00	5.50	—	Oct 21, 2026	Go
P3 Labs	5 mg	$28.00	5.60	Bioviridian99.62%	Oct 21, 2026	Go
Licensed Peptides Wholesale	10 mg	$56.88	5.69	—	Oct 21, 2026	Go
USA Premium Peptides	10 mg	$57.99	5.80	—	Oct 21, 2026	Go
NextGenPeps	10 mg	$58.00	5.80	—	Oct 21, 2026	Go
Peptide Partners	10 mg ×5	$290.00	5.80	—	Oct 21, 2026	Go
AminoVault	10 mg	$58.65	5.87	Mdxbiolabs99.9%	Oct 21, 2026	Go
Koi Peptides	10 mg	$59.95	6.00	—	Oct 21, 2026	Go
Peptide Titans	5 mg	$29.99	6.00	—	Oct 21, 2026	Go
Eppix Labs	10 mg	$59.99	6.00	—	Oct 21, 2026	Go
Novaglo Research	2 mg	$12.00	6.00	—	Oct 21, 2026	Go
Xeno Peptides	10 mg	$60.00	6.00	—	Oct 21, 2026	Go
Peak Lab Peptides	5 mg ×10	$304.00	6.08	—	Oct 21, 2026	Go
Nationwide Peptides	10 mg	$61.00	6.10	Freedom Diagnostics Testing	Oct 21, 2026	Go
Aurum Peptide Labs	30 mg	$184.99	6.17	—	Oct 21, 2026	Go
Verified Peptides	10 mg	$62.00	6.20	—	Oct 21, 2026	Go
Elite Research Labs	10 mg	$64.99	6.50	—	Oct 21, 2026	Go
Aurum Peptide Labs	10 mg	$64.99	6.50	—	Oct 21, 2026	Go
Rejuven8 Peptides	10 mg	$65.00	6.50	—	Oct 21, 2026	Go
Prime Peptides	10 mg	$65.00	6.50	—	Oct 21, 2026	Go
Peptide Partners	10 mg ×2	$130.00	6.50	—	Oct 21, 2026	Go
Bluum Peptides	10 mg	$69.00	6.90	—	Oct 21, 2026	Go
Peptide Depot	10 mg	$69.00	6.90	—	Oct 21, 2026	Go
Premier Bio Labs	10 mg	$69.00	6.90	—	Oct 21, 2026	Go
Kylo Peptides	10 mg	$69.95	7.00	Optiq Health Labs99.2%	Oct 21, 2026	Go
Avenio Bio	10 mg	$69.99	7.00	Freedom Diagnostics	Oct 21, 2026	Go
Peptides Source	5 mg	$35.00	7.00	—	Oct 21, 2026	Go
Bluum Peptides	5 mg	$35.00	7.00	—	Oct 21, 2026	Go
Penguin Peptides	10 mg	$70.00	7.00	—	Oct 21, 2026	Go
PeakForm Peptides	10 mg	$70.00	7.00	—	Oct 21, 2026	Go
Peptides Source	10 mg	$70.00	7.00	—	Oct 21, 2026	Go
Practically Natty	10 mg	$72.00	7.20	—	Oct 21, 2026	Go
ThreeSide Peptides	10 mg	$75.00	7.50	—	Oct 21, 2026	Go
TNN Peptides	10 mg	$75.00	7.50	—	Oct 21, 2026	Go
Peak Lab Peptides	5 mg	$38.00	7.60	—	Oct 21, 2026	Go
PSPeptides	10 mg	$79.99	8.00	—	Oct 21, 2026	Go
PeakForm Peptides	5 mg	$40.00	8.00	—	Oct 21, 2026	Go
Penguin Peptides	5 mg	$42.00	8.40	—	Oct 21, 2026	Go
Direct Peptides	10 mg ×10	$889.00	8.89	—	Oct 21, 2026	Go
PSPeptides	5 mg	$44.99	9.00	—	Oct 21, 2026	Go
Northwest Peptides	10 mg	$89.99	9.00	—	Oct 21, 2026	Go
TNN Peptides	5 mg	$45.00	9.00	—	Oct 21, 2026	Go
Nationwide Peptides	5 mg	$45.00	9.00	Freedom Diagnostics Testing	Oct 21, 2026	Go
Evolve Peptides	10 mg	$90.00	9.00	—	Oct 21, 2026	Go
Alpha Carbon Labs	10 mg	$90.00	9.00	—	Oct 21, 2026	Go
Oath Research	10 mg	$90.00	9.00	—	Oct 21, 2026	Go
Noxa Labs	20 mg	$180.00	9.00	—	Oct 21, 2026	Go
Direct Peptides	10 mg	$99.00	9.90	—	Oct 21, 2026	Go
Northwest Peptides	5 mg	$49.99	10.00	—	Oct 21, 2026	Go
Licensed Peptides	10 mg	$99.99	10.00	—	Oct 21, 2026	Go
Aldera Bio Labs	10 mg	$99.99	10.00	Horizon Analytical	Oct 21, 2026	Go
Evolve Peptides	5 mg	$50.00	10.00	—	Oct 21, 2026	Go
Practically Natty	5 mg	$50.00	10.00	—	Oct 21, 2026	Go
Value Peptides	5 mg	$50.00	10.00	—	Oct 21, 2026	Go
Noxa Labs	10 mg	$100.00	10.00	—	Oct 21, 2026	Go
Trulab Peptides	5 mg	$51.00	10.20	—	Oct 21, 2026	Go
BioPure Peptides	10 mg	$104.99	10.50	—	Oct 21, 2026	Go
Delta Peps	10 mg	$105.00	10.50	—	Oct 21, 2026	Go
SF Bay Area Peptides	10 mg	$108.95	10.89	—	Oct 21, 2026	Go
Glow Peptides	10 mg	$109.99	11.00	—	Oct 21, 2026	Go
True Peptides	5 mg	$55.00	11.00	—	Oct 21, 2026	Go
Oath Research	5 mg	$60.00	12.00	—	Oct 21, 2026	Go
Biotech Peptides	10 mg	$124.00	12.40	—	Oct 21, 2026	Go
Core Peptides	10 mg	$140.00	14.00	—	Oct 21, 2026	Go
Based Research	10 mg	$140.00	14.00	—	Oct 21, 2026	Go
Biotech Peptides	5 mg	$72.00	14.40	—	Oct 21, 2026	Go
GenoScience	2 mg	$30.00	15.00	—	Oct 21, 2026	Go
Penguin Peptides	2 mg	$30.00	15.00	—	Oct 21, 2026	Go
Based Research	5 mg	$75.00	15.00	—	Oct 21, 2026	Go
Bench Grade Peptides	5 mg	$76.00	15.20	—	Oct 21, 2026	Go
Core Peptides	5 mg	$78.00	15.60	—	Oct 21, 2026	Go
BioLongevity Labs	10 mg	$164.97	16.50	—	Oct 21, 2026	Go
Void Researchsold out	10 mg	$39.99	4.00	—	Oct 21, 2026	Go
Licensed Peptidessold out	10 mg ×10	$584.95	5.85	—	Oct 21, 2026	Go
Peptide.Expresssold out	5 mg	$30.00	6.00	Mistral Diagnostics	Oct 21, 2026	Go
True Peptidessold out	10 mg	$61.00	6.10	—	Oct 21, 2026	Go
Verapepsold out	20 mg	$150.00	7.50	—	Oct 21, 2026	Go
Novanta Researchsold out	5 mg	$52.00	10.40	—	Oct 21, 2026	Go
Verapepsold out	10 mg	$117.00	11.70	—	Oct 21, 2026	Go
Seus Peptidessold out	10 mg	$149.99	15.00	—	Oct 21, 2026	Go
Premier Bio Labssold out	5 mg	$78.99	15.80	—	Oct 21, 2026	Go
Seus Peptidessold out	5 mg	$89.99	18.00	—	Oct 21, 2026	Go
Seus Peptidessold out	2 mg	$49.99	25.00	—	Oct 21, 2026	Go

Other forms

Capsules, sprays, pre-mixed and IU-denominated listings. Not ranked against vials.

Modified Aminos30 mg$129.99Nasal spray4.33/mgGo

Glow Peptides0.5 mg ×30$89.95Capsules6.00/mgGo

PSPeptides10 mg$89.99Nasal spray9.00/mgGo

	Form				Lab		Vendor link
Modified Aminos	Nasal spray	30 mg	$129.99	4.33	—	Oct 21, 2026	Go
Glow Peptides	Capsules	0.5 mg ×30	$89.95	6.00	—	Oct 21, 2026	Go
PSPeptides	Nasal spray	10 mg	$89.99	9.00	—	Oct 21, 2026	Go

Every row links to the vendor page it was read from. Sizes, prices and stock are as listed by the vendor on the date checked; certificates are the vendor’s published lab reports, archived as-is. See the methodology.