They mentioned weakness on one side, nightmares, dizziness, anxiety, insomnia, restlessness, numbness, nausea, muscle spasms, tingling, itching, acne, psoriasis, eczema, heart palpitations, leg cramps, blurred vision, hair loss, and not being able to concentrate or to stand noise
And honestly, its a pretty big deal
The heart rate was considerably lower at 3 and 4 min, indicating improved cardiovascular efficiency
(9) Fangru Jiang, Yanan Wu, Zhe Liu, Minhua Hong, and Yi Huang (2023) Synergy of GHK-Cu and hyaluronic acid on collagen IV upregulation via fibroblast and ex-vivo skin tests Journal of Cosmetic Dermatology, 2023 Sep, Volume 22 (Issue 9), Pages 2598-2604
All compounds are for in vitro laboratory and scientific research use only Testing Workflow How Every Batch Is Tested Every production batch undergoes rigorous laboratory testing before being approved for research use