2, with the eyes: pure L-carnitine is a white crystal, scooped out with a spoon, completely exposed to the air, and began to melt in less than a minute. L-carnitine is very hygroscopic and difficult to store, which is why L-carnitine is basically made into capsules. It can also explain that the popular L-carnitine coffee and fruit tea are not desirable. They absorb moisture so easily, how do you usually preserve them? You can stick them on your fingers, and they will immediately start to melt for 65,438+0 minutes. You can only see water. Rub them gently to see the water quality that completely turns into oil.
3. Taste with your mouth: it is basically tasteless and slightly sweet when you drink it. If the L-carnitine you bought has a sour taste, it means L-carnitine tartrate. This is a stable state of L-carnitine, and the effect is exactly the same as that of L-carnitine, but the content of L-carnitine after adding tartaric acid is not 100%, so it is also qualified for storage convenience.
4, experience: after taking it, the exercise is several times more than usual, because L-carnitine will lead to increased perspiration, please pay attention to hydration.
5, water: take a spoonful into the water, about less than a minute, the water will be completely dissolved, without any impurities, the color of the water has not changed, colorless and tasteless.