Home bleach is also called as:
Commonly used solutions for nightguard bleaching/home bleaching/walking bleach:

10% carbamide peroxide with or without carbopol
15% carbamide peroxide
Hydrogen peroxide (1–10%)

Indications for home bleaching/night guard bleaching 

Mild generalized staining
Age-related discolorations
Mild tetracycline staining
Mild fluorosis
Acquired superficial staining
Stains from smoking tobacco
Color changes related to pulpal trauma or necrosis
Walking bleach
Thermocatalytic bleach
Power bleach
All of the above