Glow Blend vs TB-500
Tissue Repair
Glow Blend
Three-compound co-formulation pairing the copper-binding tripeptide GHK-Cu with BPC-157 and TB-500, studied together in extracellular matrix and tissue-remodeling contexts.
Tissue Repair
TB-500
Synthetic thymosin beta-4, a 43-amino-acid actin-sequestering peptide studied for cell migration and angiogenesis.
Side by side
| Dimension | Glow Blend | TB-500 |
|---|---|---|
| Molecular weight A 12.4× difference in mass — these are not comparable on a milligram-for-milligram basis. | 400.9 g/mol | 4963.44 g/mol |
| Size class | small molecule / short peptide | long peptide |
| CAS number | 89030-95-5 / 137525-51-0 / 77591-33-4 | 77591-33-4 |
| Research area | repair | repair |
| Sequence | Not published as a linear sequence | Not published as a linear sequence |
| Available sizes | 70mg | 5mg, 10mg |
| Entry price | $99 | $38 |
| Cost per mg Cost per milligram differs by more than 3×. Compare against the concentrations your protocol actually requires, not the headline vial price. | $1.41 | $6.40 |
Mechanism
Glow Blend
Glow combines GHK-Cu, a naturally occurring copper-binding tripeptide studied for extracellular matrix remodeling and gene expression modulation, with BPC-157 and TB-500. The three are grouped because their studied mechanisms converge on matrix turnover and repair signaling from different directions — copper delivery and collagen signaling, angiogenic cytoprotection, and actin sequestration respectively. Co-formulation is a handling convenience; each compound's evidence base stands on its own.
TB-500
Thymosin beta-4 is a 43-amino-acid peptide and the principal G-actin sequestering molecule in mammalian cells. Its central mechanism is binding monomeric actin and regulating polymerization, which underlies its research relevance to cell motility, wound models, and angiogenesis. The actin-binding domain is localized to a short internal sequence (LKKTETQ), and some suppliers sell fragments of this region rather than the full peptide — a distinction worth confirming on any COA.
Evidence quality
Mechanism is not the same as evidence. Where we have assessed the literature, the verdict is stated plainly.
TB-500
Evidence base: the actin-sequestering mechanism is well established and independently replicated. Claims specific to the LKKTETQ fragment rest on a considerably thinner literature than those for full-length Tβ4.
Full research reference →Research applications
Glow Blend
- Extracellular matrix remodeling assays
- Collagen and elastin expression profiling
- Copper-peptide gene expression modulation
- Multi-pathway repair protocol design
TB-500
- Actin polymerization and cytoskeletal dynamics assays
- Endothelial cell migration and tube formation studies
- Corneal and dermal wound model research
- Inflammatory cytokine modulation studies
Common questions
What is the difference between Glow Blend and TB-500?
Glow Blend is three-compound co-formulation pairing the copper-binding tripeptide GHK-Cu with BPC-157 and TB-500, studied together in extracellular matrix and tissue-remodeling contexts. TB-500 is synthetic thymosin beta-4, a 43-amino-acid actin-sequestering peptide studied for cell migration and angiogenesis. They differ in molecular weight (400.9 vs 4963.44 g/mol) and in the pathways they are studied against.
Which is more cost-effective per milligram, Glow Blend or TB-500?
Glow Blend is lower at approximately $1.41 per milligram at its best tier, against $6.40 for the other. Cost per milligram is only meaningful relative to the concentrations a given protocol requires, since these compounds are not used at comparable masses.
Can Glow Blend and TB-500 be studied together?
Combination designs appear in the published literature for a number of these compounds. Whether it is appropriate for a given protocol depends entirely on the model and endpoint. We supply research compounds and do not provide protocol guidance — consult the primary literature for your specific model.
How should Glow Blend and TB-500 be stored?
Store lyophilized powder at -20°C protected from light. Copper-containing peptides are light-sensitive — keep vials in the carton. Reconstituted solution stable at 2-8°C for up to 30 days. For TB-500: Store lyophilized powder at -20°C protected from light. Reconstituted solution stable at 2-8°C for up to 30 days.
Which has the stronger evidence base?
TB-500 — Evidence base: the actin-sequestering mechanism is well established and independently replicated. Claims specific to the LKKTETQ fragment rest on a considerably thinner literature than those for full-length Tβ4. Where we have not published a formal evidence assessment, treat the literature as requiring your own appraisal.
All products sold on this website are intended for research and identification purposes only. These products are not intended for human dosing, injection, or ingestion.
Comparison generated from Lyra Vital catalog data. Every specification is reconciled against the certificate of analysis for the shipped batch.