It's incidental. The elixir's effect is ungentle.

Duration:1 action 110 minutes

Object touched; 60-ft. radius of bright light.

Duration:10 min./level
Range: Touch
Counter: Will negates

The subject can climb and travel on vertical surfaces or even traverse ceilings as well as a spider does. The affected creature must have its hands free to climb in this manner. The subject gains a climb speed of 20 feet; furthermore, it need not make Climb checks to traverse a vertical or horizontal surface (even upside down). A spider climbing creature retains its Dexterity bonus to Armor Class (if any) while climbing, and opponents get no special bonus to their attacks against it. It cannot, however, use the run action while climbing.

DC: 16, Will negates
Duration: 1 action 110 minutes or until discharged Touch

Creature touched; Subject immune to most ranged attacks.

DC: 16, Will negates or Fortitude negates
Duration:Long (840 ft.)
Damage:1 action 1d4+1 rounds or 1d4+1 rounds after creatures leave the cloud

Turns fire into blinding light or choking smoke

Duration: Close (25 ft. + 5 ft./2 levels)
Damage:Each ray requires a ranged touch attack to hit and deals 4d6 points of fire damage.

You blast your enemies with fiery rays. You may fire one ray, plus one additional ray for every four levels beyond 3rd (to a maximum of three rays at 11th level). The rays may be fired at the same or different targets, but all bolts must be aimed at targets within 30 feet of each other and fired simultaneously.