Topical GHK-Cu is generally well tolerated, but patch testing is advised
Therefore, there must be common endogenous mechanisms beyond and outside of the mentioned systems: dopamine, serotonin, glutamate, GABA, adrenergic/noradrenergic system, acetylcholine, and NO-systems
It's the first step in your SkinFitness journey, and there's absolutely no pressure to commit
MEDICAL SAFETY NOTICE: This article is educational only and does not provide medical advice, dosing instructions, or a recommendation to inject GHK-Cu
Not always, because better depends on your goal and how your skin reacts, and injections add more risk and more cost than a topical bottle
What are the different forms of Glutathione and which is best