In fact, they claim to produce the purest oils found anywhere, which is a huge claim to make. The truth is that oils can go from good to bad very quickly and you need to purchase them from a reputable source. For example, flaxseed oil can easily go rancid, and all oils can easily become unstable outside of whole foods. This can cause them to lose their beneficial properties. Additionally, rancid oils can produce chemicals that can cause harm to the body over time and promote diseases such as atherosclerosis and cancer. It's important to make sure you buy fresh, organic oils. The Pros- A blend of 5 oils, each known to be very beneficial to health on their own, let alone combined together- Each batch must meet a very high standard of freshness- Helps reduce inflammation in the body, which helps to prevent diseases, build a strong immune system and cure current diseases - Full of antioxidants and essential amino acids - Extremely convenient. Most vitamins cost more than 1 bottle