im from australia and it gets hot in summer here so i was wondering will wearing deoderant affect how the pheros work?
No they will not. They will be less effective outdoors due to wind dispersion. You can pretty much forget them at the beach or pool.
Note: Do not apply pheros to your armpits. Trust me.
Hot weather can cause pheromones to burn off quicker so reapplication may be needed more often.
hot steamy (humid) days are good for pheromones as they tend to hang around you better, and disperse in higher levels.