The brands with a purity of over 90 include VivaNaturals, MegaGoldEPA1000 and CreNeuroS.

1. VivaNaturals: VivaNaturals’ fish oil contains more than 90% Omega-3 and is affordable.

2. MegaGoldEPA1000: MegaGoldEPA1000 is a pure EPA fish oil with an EPA content of more than 90% and is considered a pharmaceutical grade product.

3. CreNeuroS: CreNeuroS’ fish oil soft capsules are derived from small deep-sea anchovies. Its Omega-3 purity is as high as 97% and its EPA content is as high as 90%.