Lipids As Active Substances In Pharmaceuticals In this section, we are going to carry out a study of lipids, in function of their biological activity, as active substances for the elaboration of pharmaceuticals, cosmetics or nutritional supplements. 1.Triglycerides Vegetable oils Borage oil Borage oil is a important vegetable oil . Borage oil is usedl in the treatment of rheumatoid arthritis, atopic eczema and diabetic neuropathy, as well as in the reduction of cholesterol levels. Canola Oil It is the oil from canola.Health practitioners and dieticians have praised the fatty acid profile of canola, labelling it the oil with the best fatty acid ratio. Research indicates the fatty acid composition of canola oil is most favourable in terms of health benefits and as part of a nutritionally balanced diet. Olive Oil It increases the plasma HDL cholesterol concentration, but decreases the plasma LDL cholesterol concentration. Moreover, olive oil is diminishes the systolic and diastolic blood pressures in hypertensive patients .In other study, it has been reported that virgin olive oil protects mitochondrial membranes from aged rats against the free radical insult. Fish oils Fish oils are very beneficial to our health. In people with coronary heart disease, fish oils may reduce the risk of thrombosis, reduce the pain of angina and improve cardiac function. There is even preliminary evidence that they may inhibit the development of atherosclerosis. Shark Liver Oil It is obtained from the liver taken from deep sea sharks. It is used to combat viral infections such as colds and influenza as an antiseptic to heal wounds. Alkylglycerols is found in shark oil. The alkoxyglycerols helps the body protect against all three types of common offenders including bacterial, fungal and viral infections. These natural immune supporting nutrients also help the immune system fulfill its role of warding off the progression of other degenerativeconditions:AIDS, cancer,auto-immune disorders and allergic reactions.