Is the date font at the bottom of the Weather Pill a dotted line or a straight line?

Straight line.

You can tell the authenticity by looking at the back of the bottle. The printing on the back of the genuine Weather Pill is very clear and the fonts do not appear to be connected together. The thickness of the fonts changes significantly. The fonts on the back of the fake Weather Pill are printed It is relatively rough, and the strokes may even appear to be connected together, and the change in thickness is very abrupt.

The small steel balls on the top of the authentic Weather Pill cover are very delicate, round, full and dense, and are arranged very neatly. The fake Weather Pill cover has gaps in the middle of the small steel beads and the workmanship is rough.