Proline and its derivatives are often used as asymmetric catalysts in organic reactions, as the CBS reduction and proline catalysed aldol condensation.

Theogallin is an active ingredient in decaffeinated green tea extract, has cognition enhancing effect and antidepressive.

N-Demethyl-α-obscurine, a lycodine-type Lycopodium alkaloid, is isolated from Lycopodii Herba.