ghk-cu injection site irritation stinging Recent post responses making me question if my reactions are normal. Worried! : r/Peptides ghk-cu subcutaneous injection sites typical – ghk cu injection site irritation

I've consulted a lot of volleyball players

NIH/3T3 cells (5 10 cells per well) were seeded onto the hydrogel surface and incubated for 24 h

GHK-Cu supports the production of proteins and lipids that reinforce the barrier, reduce transepidermal water loss (TEWL), and promote smoother, more hydrated skin

These two peptides target overlapping but distinct stages of the tissue repair process, making their combination more effective than either used alone

April 22, 2026: Removed from Category 2 On April 15, 2026, the FDA published a 503A category revision removing 12 peptides from Category 2 effective seven calendar days later (April 22)