Supplements are items that West can consume to temporarily enhance his abilities. All supplements can be produced at the Bio Combine System after sufficient research is made. Two of each supplement can be found in the west-most room of Central Control, which is useful for beginning research. All supplements have a stack limit of 10.
It should be noted that none of these items are instantaneous. After using an item, West spends a few seconds to apply the item; after application, the item will last for its listed duration, applying effects either during or after this duration, depending on the item. The short process of applying an item does not impede West in any way, except for preventing another item from being applied; however, if West is hit while applying an item, it will not be applied and will be lost.
List of Marsmaris
Once applied, marsmari allows West to detect nearby enemies for its duration. An enemy within range has a red circle shown on it, which is visible regardless of lighting and West's line of sight. Bigger enemies will have an appropriately-sized circle. Improved versions have both increased duration and increased range.
List of Musclemaxs
Once applied, musclemax temporarily increases West's melee damage.
List of Windroids
Once applied, windroid provides West with infinite stamina and increased movement speed. Both the strength of the movement speed increase and the duration of the windroid increase with improved windroid. Note that infinite stamina does not prevent other effects of stamina use, such as increased fatigue generation.