Understand the source comparison
EGF versus FGF (fibroblast growth factor)
FGF and EGF are both growth factors, but they target different cell populations. EGF primarily acts on ectodermal cells, which include keratinocytes, epidermal cells, and epithelial cells lining the gut and respiratory tract. FGF primarily targets mesodermal a
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- FGF and EGF are both growth factors, but they target different cell populations. EGF primarily acts on ectodermal cells, which include keratinocytes, epidermal cells, and epithelial cells lining the gut and respiratory tract. FGF primarily targets mesodermal and endodermal cells, including fibroblasts, chondrocytes, and endothelial cells.
- In practical terms, EGF is more effective for surface-level repair, re-epithelialization, barrier function, and epidermal regeneration. FGF is more effective for deeper tissue repair, angiogenesis in the dermis, and fibroblast-mediated collagen synthesis. The ideal wound healing or anti-aging approach uses both, which is why multi-growth-factor formulations have gained popularity. Understanding this distinction helps you choose the right peptide formula for your specific goals.