L-Tyrosine is a non-essential amino acid and plays an important role in the production of the neurotransmitters dopamine & norepinephrine as well as a precursor for adrenaline.
L-Tyrosine in more Detail
A hard training athlete\bodybuilder may benefit from supplementing with L-tyrosine as is a precursor of Dopamine which could help to counter fatigue & the stresses associated with intense & heavy workouts.
Suggested Use for L-Tyrosine
As a dietary supplement consume 0.5 grams of l-Tyrosine 1 to 2 times daily.
Acetyl L-carnitine (ALCAR) is derived from the lysine & methionine amino-acids. It is mainly synthesized in the liver and the kidneys, and must be transported for use to other tissues in the body. It is found in highest levels in tissues that use fatty acids as the main fuel, for example the skeletal and cardiac muscles.
L-carnitine and Acetyl L-carnitine have backed claims of anti-aging and nutrient regenerating properties and the effects of supplementing with them have been extensively researched in many areas including exercise performance, weight loss, treatment of Alzheimer's disease, Parkinson's, diabetic depression and many other neurological disorders.
Acetyl L-carnitine (ALCAR) in more detail
L-carnitine plays an important role in the production of energy.
It can help assist with weight-loss.
Improve your mental performance, giving you a much clearer focus.
Has anti-aging properties..
Is used to support all your bodily functions that require a high amount of energy.
Even at higher than recommended doses L-carnitine has no side-effects and is well known to be a safe supplement to use.
Suggested Use for Acetyl L-carnitine (ALCAR)
For the best results consume 1 gram to 2 grams of ALCAR up-to 2 or 3 times daily.
I don't know what they have to do with tanning, but thats what their recommended bodybuilding/sports use is. Hope this helps. Incidently you're probably paying extorionate amounts for this stuff, how much did you pay and for how many grammes?