Reviewed by PeptideGuide Research Team|Last updated February 15, 2026
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Side-by-Side Comparison
Property
TB-500
GHK-Cu
Name
TB-500
GHK-Cu
Peptide Class
Regulatory peptide
Copper-binding peptide
Category
Recovery and Repair
Recovery and Repair
Dosage Range
2-5 mg per week
Varies based on formulation and application
Half-Life
2-3 days
N/A
FDA Status
Not approved
Not FDA-approved for systemic use
Safety Rating
Research Only
Generally Well-Tolerated
Cost Estimate
$150-300/month
$100-200/month
TB-500
TB-500, also known as Thymosin Beta-4, is a regulatory peptide primarily used for its recovery and repair properties. It is known to promote cell migr...
View full profile →GHK-Cu
GHK-Cu, or Glycyl-L-histidyl-L-lysine-Copper(II), is a copper-binding peptide renowned for its role in skin repair and anti-aging treatments. It enhan...
View full profile →