Save time, money, the environment...and get better gel results! SYBR SafeŽ is a DNA stain that fluoresces with a bright green colour when excited with UV light. Like Ethidium Bromide, SYBR SafeŽ binds specifically to the DNA double helix. However, unlike Ethidium Bromide, SYBR SafeŽ has been engineered to be less mutagenic than Ethidium Bromide, making it much safer to use, particularly in the classroom. makes 750ml