16 BRIGHT LEDs and 3 ADAPTERS for iPhone, USB, Android (compatible with 4G or newer). Never needs batteries.

HARVARD MAGAZINE on LED Blue Light Therapy "...discovery with important implications for preventing and treating periodontal disease..."

HARVARD MAGAZINE on LED Blue Light Therapy "Black-pigmented bacteria are also to blame for halitosis, and light therapy gets at its root cause by killing the bacteria, rather than simply masking their odor as mints and mouthwashes do.

SCIENTISTS at The FORSYTHE INSTITUTE have found that blue light can be used to selectively suppress certain bacteria commonly associated with destructive gum disease.

Also a TEETH WHITENING LIGHT, works with any teeth whitening gel or teeth whitening strips (sold separately). Try Starlite's 44% Made in the USA Carbamide Peroxide.