What is the difference between Cartalax and TB4-Frag?

Cartalax: Tetrapeptide bioregulator from cartilage tissue; stimulates chondrocyte proliferation and extracellular matrix synthesis; normalizes gene expression in cartilage cells TB4-Frag: Active fragment of Thymosin Beta-4; promotes actin dynamics and cell migration; activates hair follicle stem cells; modulates inflammatory signaling

Is Cartalax FDA approved?

Cartalax is not evaluated or approved by the FDA. It is discussed for research and educational purposes only, not as medical guidance.

Is TB4-Frag FDA approved?

TB4-Frag is not evaluated or approved by the FDA. It is discussed for research and educational purposes only, not as medical guidance.

How is Cartalax administered in research settings?

In research settings, Cartalax is typically administered via the subcutaneous or oral routes. PeptideBase does not provide dosing or administration instructions.

How is TB4-Frag administered in research settings?

In research settings, TB4-Frag is typically administered via the subcutaneous or topical routes. PeptideBase does not provide dosing or administration instructions.

Home›Research›Compare›Cartalax vs TB4-Frag

Peptide Comparison

Cartalax vs TB4-Frag

Name: Cartalax vs TB4-Frag — Per-mg Price Comparison
Creator: PeptideBase
License: https://peptidebase.io/terms

Both are Skin & Cosmetic peptides.

Cartalax

Ala-Glu-Asp-Arg

Skin & JointNot EvaluatedResearch Only

Half-life: Unknown

6 providers listed

Full Cartalax profile →

TB4-Frag

Thymosin Beta-4 Fragment

Skin & JointNot EvaluatedResearch Only

Half-life: Unknown

12 providers listed

Full TB4-Frag profile →

Bottom line

TB4-Frag is carried by more providers on PeptideBase (12 vs 6); otherwise the two are closely matched on the measures we track.

Quick Verdict

Cartalax

Evidence

Preclinical

TB4-Frag

Evidence

Preclinical

Which One Should You Choose?

Your goal	Better option
Stronger clinical evidence	TB4-Frag
Oral administration option	Cartalax
More provider options (6 vs 12)	TB4-Frag

Research summary only — not medical advice. Consult a qualified provider before making any decisions.

Side-by-Side Comparison

Cartalax

TB4-Frag

Mechanism Family

Skin & Cosmetic

Half-life

Unknown

FDA Status

not evaluated

Admin Routes

subcutaneous, oral

subcutaneous, topical

Availability

Research Only

Providers

6 listed

12 listed

Avail. Notes

Russian joint/cartilage peptide bioregulator (Khavinson Institute). Not FDA-approved. Not on any FDA list. Research chemical in US.

N-terminal TB-4 fragment (Ac-SDKP tetrapeptide). Distinct from full-length TB-500/Thymosin Beta-4 (Category 2). No separate FDA action on this fragment. Anti-fibrotic research use only.

Research Evidence

Cartalax

PreclinicalIn vitro · 1 key study · most recent 2023

TB4-Frag

PreclinicalAnimal · 2 key studies · most recent 2016

Research Citations

Cartalax

In vitro2023 · Advances in Gerontology

KE peptide regulates SIRT1, PARP1, PARP2 gene expression and protein synthesis in human mesenchymal stem cell…

TB4-Frag

Animal2016 · Molecular Genetics and Genomics

Role of thymosin beta 4 in hair growth

Animal2007 · Annals of the New York Academy of Sciences

Thymosin beta 4 induces hair growth via stem cell migration and differentiation

About Cartalax

Tetrapeptide bioregulator from cartilage tissue; stimulates chondrocyte proliferation and extracellular matrix synthesis; normalizes gene expression in cartilage cells

Research Areas

cartilage regenerationjoint repairchondrocyte function support

About TB4-Frag

Active fragment of Thymosin Beta-4; promotes actin dynamics and cell migration; activates hair follicle stem cells; modulates inflammatory signaling

Research Areas

hair growthwound healinganti-inflammatorytissue repair

Safety Profile

Information below reflects published research data only — not medical advice. Consult a qualified provider before use.

Cartalax

No established clinical contraindications. This is an investigational compound with limited human data and has not been evaluated by the FDA for safety in this context. Consult a qualified clinician.

TB4-Frag

No established clinical contraindications. This is an investigational compound with limited human data and has not been evaluated by the FDA for safety in this context. Consult a qualified clinician.

Price (per mg)

Cartalax

$2.75/mg

$2.06 – $3.00 range

12 vendors

View price index →Find providers →

TB4-Frag

Not enough vendor pricing yet.

Find Providers

Where to source these peptides

Providers offering

Cartalax

6 listed

Browse directory →

Providers offering

TB4-Frag

12 listed

Browse directory →

PeptideBase lists providers for educational research purposes only. Always consult a qualified healthcare professional before obtaining or using any peptide.

More Skin & Cosmetic Comparisons

Browse all peptides →

Educational research tools — not medical advice.

Cite this page

Data last updated July 20, 2026

Free to reference and republish with attribution to PeptideBase. Choose a format:

PeptideBase. (2026). Cartalax vs TB4-Frag — Per-mg Price Comparison. Retrieved July 22, 2026, from https://peptidebase.io/peptides/compare/cartalax/tb4-frag

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