Astaxanthin is a powerful antioxidant that belongs to the carotenoid family. Carotenoids are coloured plant pigments that give fruits and vegetables their colours. Many carotenoids help to protect human cells from free radicals. Astaxanthin has been known to help prevent low-density lipoprotein oxidation in human blood and to possibly enhance the immune system. Astaxanthin is derived from marine algae and is related to beta carotene, but is more powerful than its relative at neutralizing singlet oxygen. Astaxanthin may also be able to decrease arterial blood pressure and help protect against damage caused by stroke. It is also believed to help improve memory in vascular dementia.

DHA is an omega-3 fatty acid, chemically it is a carboxylic acid with a 22-carbon chain and six cis double bonds. Its chemical formula is C22H32O2 and Mol. Mass is 328.488 g/mol. Fish oils are the primary source of DHA. Research is being done on its application in treatment of Alzheimer's disease. It is also used as a supplement by pregnant women because studies indicate that low levels of erythrocyte DHA are associated with poor retinal development, low visual acuity, and poor cognitive development. DHA is becoming popular as a supplement for infants because it promotes healthy brain development and makes infants gain weight faster.

EPA (Eicosapentaenoic Acid) is among the many omega3 fatty acids that are used by the body. It is present in fatty fish, and also in fish oil supplements, together with DHA (docosahexaenoic acid). This fatty acid is an element of a healthy diet, and reduces the hazards of heart diseases. Enhanced ingestion of EPA has positive effects on high blood pressure, coronary heart diseases, and disorders related to inflammation, like rheumatoid arthritis. If you do not get enough EPA in your diet, you need to take supplements. This fatty acid is extremely vital for proper development of children’s brains.

Fish Oil used to be regular oil derived from oily fish, it looked and smelled the part and children simply hated it, although it was good for them. Containing omega-3 fatty acids, EPA and DHA, the two precursors to eicosanoids, in some higher quality cases also omega-6 fatty acids, fish oil is perhaps one of the most important supplements given to children during their development. In recent times, the contamination of fish in the sea through mercury and dioxin, among other pollutants, has prompted the FDA to carefully review the sourced of the preferred brand product. Nevertheless, the fish oil supplements have only gained popularity for all the health benefits that are provided. The health benefits are just too numerous to list, but from the heart to brain and nervous system, the whole body profits immensely.

Omega-3 fatty acids are polyunsaturated fatty acids (PUFAs) that are considered to be an essential fatty acid. Omega 3 can be found in seafood and fishes such as tuna, and salmon. It is commonly known as fatty acid that is good for the heart. It also helps reduce the risk of cardiovascular diseases by controlling the cholesterol level and blood pressure level. It plays an important role in the efficient function of the brain. It helps in improving the cognitive functions of the brain such as memory and performance; and also aids in the behavioural function of the brain. It also fights fatigue, prevents diabetes, improves dry skin and blood circulation. It also prevents osteoporosis.