Yoyo Facotory Dark Matter Oil
If you are serious about yoyoing and are enjoying it for a long time, you will feel the difference after using oil lubrication. It's just better with oil. Dark Matter oil is intended for non-responsive yo-yos. It increases the spin time of the yoyo and also its lifespan. At the same time, it improves its quiet operation.
If your bearing is also starting to make strange noises, it needs to be lubricated. Ideally, the bearing must be removed and cleaned with technical gasoline (kerosene or gasoline for lighters). Then add 3 drops of oil to the bearing. After assembly, start yoyoing for a while to allow the oil to settle. After the oil settles, it will go like new. The oil can be applied continuously or immediately after unpacking.
The bottle should be shaken before using the oil.