could be a misspelling of 'perspirent' (causing sweat) or 'persuadent' (persuasive)

Persperent

Unveiling the Truth Behind Perspirant: The Science of Sweat and Health

Perspirent, commonly known as sweat, plays a crucial role in regulating body temperature and eliminating toxins from the body. It is primarily composed of water, electrolytes, and small amounts of waste products. Sweat itself is odorless; however, when it comes into contact with bacteria on the skin's surface, it can produce an unpleasant smell...