is l carnitine a thermogenic VMI Sports L-Carnitine 1500 Heat Stimulant Free Metabolic Support & Fat Loss for Men & Women | 1500mg L-Carnitine Carnitine: the claims and why

In addition, GCH1/BH4 exerts a selective inhibitory impact on nuclear receptor coactivator 4 (NCOA4)-mediated ferritin autophagy and affects iron metabolism ( The transcription factor nuclear factor erythroid 2-related factor 2 (Nrf2) controls the expression of genes associated with oxidative stress and can reliably maintain redox stability and resistance to oxidative stress

In particular, these hydrogels respond to both acidic and alkaline environments, and can be used in the treatment of both acute and chronic wounds (Zhao et al., 2021)

As to what it does in cosmetic products, we found manufacturers info claiming that it plays a role in supplying fibroblast cells (VIP skin cells that make collagen) with nutrients, in the growth and migration of cells and in wound healing

aspiration not required for subcutaneous injections

You wont find L-carnitine in plants, and your protein intake may be lower already

I dont believe U-shape (non-linear) associations that much, unless its obvious whats causing the increase in mortality or whatever and what the confounding factors are