Olaplex can be used as a stand-alone treatment to re-boot heat-damaged and coloured hair like mine, but it can also be used as part of the colouring process, which is its real selling point. The three-step programme works by repairing bonds within the hair shaft, known as disulphide bonds.
The urea and water are released from the liver cells to the bloodstream and transported to the kidneys where the blood is filtered and the urea is passed out of the body in the urine.Urea is very soluble and a small molecule, so it is relatively easily passed out by the kidneys as a solution in water.xcretion and the liver Excretion in mammals Excretion is the removal of potentially harmful or toxic substances from the body. These substances are usually waste materials produced by complex chemical reactions taking place in living cells. Enzymes catalyse the reactions.
The kidneys. Nitrogenous waste from the blood is excreted in the form of urine. Kidney In mammals, the kidneys and bladder are responsible for removing excess nitrogen in the â¦ form of Urea.  .he waste products must be cleaned up to blood waste then leaves  the body in the urine the digestive system and kidneys work  together to provide nutrients and remove.