Copper peptides ( AHK-Cu , GHK-Cu ) are not DHT blockers and are not part of the big 3-they can still support scalp health as an add-on
TB-500's parent Thymosin -4 has been characterised for actin-cytoskeleton dynamics, cell migration, cardiac progenitor mobilisation, and corneal wound-healing in foundational and contemporary research (PMID 11579089, PMID 15565145, PMID 11950239)
Clean early-phase safety
Other Ingredients: Water, glycerin, ethanol, highly purified phospholipids, tocophersolan, natural mixed tocopherols
Peptides below 95% purity contain contaminants degradation products, synthesis byproducts, or incorrect amino acid sequences that introduce unknown biological activity and invalidate experimental results
Genetics testing negative, and DCIS dx- tx with mastectomy