can you use ghk cu topical GHK-Cu Facial Serum Topical GHK-CU
Description
More serious side effects can also include chest pain, bleeding gums, eye pain, irregular heartbeat, swelling around the face and extremities, and hives

Cell (2011) 144(5):64674

Vitamin B12 is a water-soluble vitamin, which means that excess amounts are flushed out of the body through the urine, making a vitamin B12 overdose nearly impossible

For fine lines and general skin quality on the face, topical products are a reasonable approach