l carnitine beyond raw Raw® - Burn MF™ Metabolic Formula - 90 Capsules (30 Servings) l carnitine beyond raw Amazon.com:

Improved Membrane Permeability The cyclization of peptides contributes to the formation of intramolecular hydrogen bonds and the orientation of side chains, which in turn helps to protect polar atoms from solvent mediators, reduces intestinal, blood, and tissue degradation, decreases flexibility, reduces polar surface area, and facilitates the permeability of cell membranes

Cold muscles are less flexible and more prone to strain

If you have the money to spend, this is a great choice

This trial is particularly important because cardiovascular outcome trials (CVOTs) are increasingly required by the FDA for metabolic medications

I'm not sure if it was you or someone else but as zpped just reminded us, I had mentioned in another thread a while back that it took PGB's supplier a few tries to get it right (they actually sent sterile water instead of BAC the first time), but they have managed to get it pretty spot-on and I wouldn't hesitate to use it