The biggest recorded blue whale was a female in the Antarctic Ocean that was 30.5 m long (more than 3.5 times the length of a double-decker bus and as long as a Boeing 737 plane) with an estimated weight of 144 tonnes (almost the same as 2,000 men).
Whether you use a boxed hair color at home or you get it done professionally at a salon, the recommended wait time before washing your hair is 24 hours.
Step 6. Refrain from washing your hair for a full 48 hours after you step out of the salon. Washing with shampoo -- and even getting your hair wet -- can disturb the hair proteins as they are locking into their shapes in those first hours.