TB-500: research, prices and suppliers

Facts

• Molecular weight: 4963 g/mol
• Amino acids: 43
• Purity specification: ≥ 99 % (HPLC, commercial standard)

Evidence

• A study in rats and mice described that the active sequence of thymosin beta-4, which also forms TB-500, influenced stem cell migration within the hair follicle. Philp et al. 2004, FASEB Journal, PMID 14657002
• A randomized, placebo-controlled clinical trial in patients with severe dry eye tested an eye-drop formulation of the full thymosin beta-4 protein and described improved signs and symptoms compared with placebo. The trial involved the full protein, not the TB-500 fragment itself. Sosne et al. 2015, Cornea, PMID 25826322

Frequently asked questions

Documented prices

Prices are recorded snapshots. Each entry states its date, currency and pack variant. Shipping, tax treatment, discount conditions and availability must be rechecked in the shop. A low price is not evidence of quality.

List prices excluding shipping and discounts. Currency and product variants must be compared separately. Availability and delivered batch have not been verified.

Questions about interpretation

Sources and data basis

These references come from the existing dataset. A link alone verifies neither a study claim nor supplier quality. Uncertainty remains explicit where records are undated or incomplete.

• Philp et al. 2004, FASEB Journal, PMID 14657002
• Sosne et al. 2015, Cornea, PMID 25826322
• PMID 14657002
• PMID 25826322

Where to go next

• BPC-157
• GHK-Cu
• Thymosin alpha 1
• Pentadeca Arginate (PDA)
• Compare documented prices
• Peptidwerk
• Particle Peptides
• Europa-Peptide
• BioCollex
• Smart Peptides
• Peak Peptide
• Beyond Peptides
• Licensed Peptides
• Bio BoostX
• Chameleon Peptides
• Protide Health
• American Peptides
• DN Lab Research
• PPX.at
• Peptide Labz
• Driada
• Hydro Research Peptides
• Peptide Shop Deutschland
• Read a COA: purity, amount and identity
• Our assessment methodology
• Look up recorded batches
• Look up terms in the glossary