Despite the predominant pro-tumorigenic roles attributed to iCAFs in various studies, a cluster of tumour-restrictive iCAFs characterised by high expression of osteoglycin was identified [237]
This means that more injections would be needed with this and hence a higher cost
Even a recent 2026 review concludes the same thing that GHK-Cu appears safe but the evidence is largely preclinical and comprehensive human RCTs are lacking (Wojcieszuk et al., 2026)
For example, highly qualified dermatologists charge premium prices for their services
Glutathione reduces oxidative stress by neutralizing free radicals, helping protect cells and tissues from damage
Heres the simple explanation: Stress inside the skin stimulates more pigment Glutathione reduces stress pigment starts to even out This helps fade: Sun spots Post-acne marks General uneven tone Glutathione also helps prevent new discoloration from forming, making it ideal if you want long-lasting clarity