TB 500 - Ai-Peptides

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TB 500

Thymosin βeta-4 (43aa)

TB-500 (Thymosin Beta-4) is a 43 amino acid peptide sequence. In animal models, Thymosin Beta-4 has been shown to improve blood vessel growth, regulate wound healing, decrease inflammation, and reduce oxidative damage in the heart and central nervous system. Thymosin-beta-4 has a role in protection, tissue repair, regeneration and remodeling of injured or damaged tissues. It is also of active interest in anti-aging research.

TB-500 is a small, naturally inspired peptide researchers use to study how cells move, organize, and repair. In simple terms, it’s often discussed around cell migration and cytoskeleton dynamics—how cells “get to the right place” and lay down fresh structure in models of tissue maintenance and recovery.

In preclinical literature, TB-500 is explored for signals linked to new vessel growth, balanced inflammation, and remodeling of injured tissue. Labs watch markers tied to actin regulation, angiogenesis, and matrix organization to see how these pathways behave under defined conditions. These are research signals, not medical claims, and outcomes vary by model and protocol.

What sets our TB-500 apart is clean, verified quality. Each batch is identity-confirmed (e.g., mass spectrometry) and purity-checked by HPLC with ≥99% purity (typical). You receive a lot-specific Certificate of Analysis (COA) showing the actual test data—clear proof that what’s on the label is what’s in the vial, with impurities kept extremely low.

We prioritize consistency you can repeat. Specifications are kept tight from batch to batch and every lot is tracked, so you can reorder the analytical profile you liked and expect comparable behavior in method development, comparisons, and follow-up work.

If you value clarity, documentation, and high purity, TB-500 from AI Peptides delivers exactly that—well-characterized material with transparent proof, ready for rigorous lab use.

$165 USD
1
$157 USD 5%
5
$149 USD 10%
10
$140 USD 15%
20+

$165 USD

Out of stock

Expiry date3/12/27
Date Produced3/12/25
CAS #77591-33-4
FormulaC212H350N56O78S
M.W.4963 g/mol
REF1002-TB
Purity99% HPLC
RUOResearch Use Only

Not for human or veterinary use. Made in USA

This product is intended as a research chemical only. Not for human use. Peptides will arrive in a lyophilized (powder) form for maximum stability.

Storage Instructions:

All of our products are manufactured using the Lyophilization (Freeze Drying) process, which ensures that our products remain 100% stable for shipping for up to 3-4 months.
Once the peptides are reconstituted (mixed with bacteriostatic water), they must be stored in the fridge to maintain stability. After reconstitution, the peptides will remain stable for up to 30 days.

Lyophilization is a unique dehydration process, also known as cryodesiccation, where the peptides are frozen and then subjected to low pressure. This causes the water in the peptide vial to sublimate directly from solid to gas, leaving behind a stable, crystalline white structure known as lyophilized peptide. The puffy white powder can be stored at room temperature until you’re ready to reconstitute it with bacteriostatic water.

Once peptides have been received, it is imperative that they are kept cold and away from light. If the peptides will be used immediately, or in the next several days, weeks or months, short-term refrigeration under 4C (39F) is generally acceptable. Lyophilized peptides are usually stable at room temperatures for several weeks or more, so if they will be utilized within weeks or months such storage is typically adequate.

However, for longer term storage (several months to years) it is more preferable to store peptides in a freezer at -80C (-112F). When storing peptides for months or even years, freezing is optimal in order to preserve the peptide’s stability.

For further information on proper storage techniques, click the link below:

Peptide Storage Information

Certificate Of Analysis:

This product is intended as a research chemical only. Not for human use. Peptides will arrive in a lyophilized (powder) form for maximum stability.

Storage Instructions:

All of our products are manufactured using the Lyophilization (Freeze Drying) process, which ensures that our products remain 100% stable for shipping for up to 3-4 months.
Once the peptides are reconstituted (mixed with bacteriostatic water), they must be stored in the fridge to maintain stability. After reconstitution, the peptides will remain stable for up to 30 days.

Lyophilization is a unique dehydration process, also known as cryodesiccation, where the peptides are frozen and then subjected to low pressure. This causes the water in the peptide vial to sublimate directly from solid to gas, leaving behind a stable, crystalline white structure known as lyophilized peptide. The puffy white powder can be stored at room temperature until you’re ready to reconstitute it with bacteriostatic water.

Once peptides have been received, it is imperative that they are kept cold and away from light. If the peptides will be used immediately, or in the next several days, weeks or months, short-term refrigeration under 4C (39F) is generally acceptable. Lyophilized peptides are usually stable at room temperatures for several weeks or more, so if they will be utilized within weeks or months such storage is typically adequate.

However, for longer term storage (several months to years) it is more preferable to store peptides in a freezer at -80C (-112F). When storing peptides for months or even years, freezing is optimal in order to preserve the peptide’s stability.

For further information on proper storage techniques, click the link below:

Peptide Storage Information

This product is intended as a research chemical only. Not for human use. Peptides will arrive in a lyophilized (powder) form for maximum stability.

Storage Instructions:

All of our products are manufactured using the Lyophilization (Freeze Drying) process, which ensures that our products remain 100% stable for shipping for up to 3-4 months.
Once the peptides are reconstituted (mixed with bacteriostatic water), they must be stored in the fridge to maintain stability. After reconstitution, the peptides will remain stable for up to 30 days.

Lyophilization is a unique dehydration process, also known as cryodesiccation, where the peptides are frozen and then subjected to low pressure. This causes the water in the peptide vial to sublimate directly from solid to gas, leaving behind a stable, crystalline white structure known as lyophilized peptide. The puffy white powder can be stored at room temperature until you’re ready to reconstitute it with bacteriostatic water.

Once peptides have been received, it is imperative that they are kept cold and away from light. If the peptides will be used immediately, or in the next several days, weeks or months, short-term refrigeration under 4C (39F) is generally acceptable. Lyophilized peptides are usually stable at room temperatures for several weeks or more, so if they will be utilized within weeks or months such storage is typically adequate.

However, for longer term storage (several months to years) it is more preferable to store peptides in a freezer at -80C (-112F). When storing peptides for months or even years, freezing is optimal in order to preserve the peptide’s stability.

For further information on proper storage techniques, click the link below:

Peptide Storage Information

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Use our Peptide Reconstitution Calculator. Simply select your parameters to accurately calculate dosages.

1

mg =

100

mcg(µg)
Determines peptide concentration
Common Amounts: GLP-1s: 2–3mL, Peptides: 3mL

PEPTIDE DOSE

0.1 mg

DRAW SYRINGE TO

5 units

YOUR VIAL CONTAINS

10 doses

CONCENTRATION

2 mg/mL

Dose of Peptide

0.1 mg = 100 mcg(ÎĽg)

Peptide Strength

Bacteriostatic Water

Determines peptide concentration
Common Amounts: GLP-1s: 2mL to 3mL Peptides: 3mL

FAQ:

What is the purity of your peptides, and how can I verify their quality?

All Ai-Peptides products are manufactured in the USA under strict quality control. Each peptide is analyzed using HPLC and Mass Spectrometry to confirm identity and purity, typically ≥99%. Every batch comes with a Certificate of Analysis (COA) you can view to verify authenticity and research-grade quality.

Our peptides are shipped lyophilized (powder form) for maximum stability. Store them in a cool, dry place until use. For long-term preservation, keep them refrigerated or frozen. Once reconstituted with a suitable research-grade solvent, keep the solution cold and protected from light to maintain integrity.

All products on our website can be purchased in any quantity available, from a single vial to larger amounts, simply by adjusting the quantity in your cart. We do not currently offer special wholesale pricing or custom bulk arrangements.

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