l carnitine im injection - Intramuscular shot L-Carnitine Injection | Levocarnitine IV

The thing with overdosing with copper, I dont think so

Biometals 23:927940 Dash S, Mohanty N (2002) Response of seedlings to heat-stress in cultivars of wheat: growth temperature-dependent differential modulation of photosystem 1 and 2 activity, and foliar antioxidant defense capacity

Changes in sleep architecture included increased lighter sleep stages (S1 and S2), decreased deep sleep stages (S3, S4), and REM sleep, as well as delayed REM sleep onset

The choice of treatment method depends on individual preferences and desired results

However, because metabolic health is complex, you should always consult your primary healthcare provider before adding any new supplement to your regimen