does l-carnitine make you retain water Role of carnitine in disease | Nutrition & Metabolism L-Carnitine: Benefits, Uses, and Side
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Aug 12 2016;17(8)doi:10.3390/ijms17081328 Desouza C, Chatterjee R, Vickery EM, et al

May improve fat loss L-carnitine is often used as a diet aid because it supports the transportation of fatty acids into the energy-producing mitochondria

In general, many researchers believe PQQ is safe
They also usually come with some pretty funky digestive side effects that most would rather avoid

Inhibition study of raw garlic juice and allicin against high-TMAO producer gut microbiome and BB/TMA-producing bacteria Garlic juice was prepared as described above, following which it was sterilized by filtration through 0.22-m polyvinylidene fluoride membranes

L-Carnitine is stimulant-free and does not elevate heart rate or body temperature, making it safer to use in Pakistans warmer months than stimulant-based fat burners