Who Should Avoid It Not for use on broken or infected skin Avoid eye area - may cause irritation Do not use if allergic to copper or peptides Not recommended during acute skin infections Stop Right Away If You Notice Persistent scalp irritation, itching, or burning Allergic reaction: rash, hives, swelling Increased hair shedding that doesn't improve after 4-6 weeks Signs of copper sensitivity: metallic taste, nausea Skin discoloration at application site Any unexpected adverse reactions Milder Signs to Watch For How Long Should a AHK-Cu Cycle Last
It allows for a vial to be entered multiple times with a sterile needle to draw out solution over a period of time without it becoming a petri dish for airborne contaminants
Hair Growth: AHK-Cu has also been studied for its potential to promote hair growth
Science 283 , 981985 (1999)
These small protein fragments act as signaling molecules that influence healing, inflammation, and more
Together, these effects support the repair of damaged nerves and lower pain (Guo et al., 2022