GHK-Cu
Skin & Connective Tissue
Not Approved (Injectable)
SkinHealingAnti-agingConnective Tissue
GHK-Cu (Glycine-Histidine-Lysine Copper Complex) is a naturally occurring tripeptide with high affinity for copper(II) ions, found in human plasma, saliva, and urine. Plasma levels decline significantly with age - from ~…
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Thymosin Alpha-1
Immune Support
Not Approved (US)
Immune SupportAnti-agingAntiviralLongevity
Thymosin Alpha-1 (TA1) is a 28-amino acid peptide naturally secreted by thymic epithelial cells, commercially available as Thymalfasin (Zadaxin). It is approved as a pharmaceutical drug in over 35 countries (including Ch…
Full Thymosin Alpha-1 profile →
Stack Compatibility & Key Differences
Both are active research compounds. See individual pages for full protocol data.
Frequently Asked Questions
What is the difference between GHK-Cu and Thymosin Alpha-1?
GHK-Cu: GHK-Cu (Glycine-Histidine-Lysine Copper Complex) is a naturally occurring tripeptide with high affinity for copper(II) ions, found in human plasma, saliva, and urine. Plasma levels decline significantly with age - from ~… Thymosin Alpha-1: Thymosin Alpha-1 (TA1) is a 28-amino acid peptide naturally secreted by thymic epithelial cells, commercially available as Thymalfasin (Zadaxin). It is approved as a pharmaceutical drug in over 35 countries (including Ch…
Can you stack GHK-Cu and Thymosin Alpha-1?
Both are active research compounds. See individual pages for full protocol data.
Which has a longer half-life, GHK-Cu or Thymosin Alpha-1?
GHK-Cu half-life: ~30 min (plasma). Thymosin Alpha-1 half-life: ~2 hours.