To say to improve immunity, I do not think such a simple matter.

要说提高免疫力，我觉得不是这么简单的事情。

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CONCLUSION The Guiyuan oral liquid can improve immunity and fatigue relief.

结论：归元口服液可以提高小鼠免疫及具有抗疲劳作用。

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You can remove the eye secretions, relieve eye fatigue, improve immunity eye!

可以清除眼内的分泌物，缓解眼疲劳，提高眼睛的免疫力！

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As the tea ferments, some believe it creates a variety of health-boosting acids and enzymes that can aid digestion and improve immunity.

WSJ: High Tea Has a New Meaning

Yogurts say they will improve immunity and digestion.

FORBES: Magazine Article