So what are their acai results? The acai FDA scenario is at a point where not all the acai products are considered drugs, as these acai products are not claiming  use in the cure, mitigation, treatment, or prevention of disease, as a result they are not classified as drugs but just dietary supplements, and as such they do not have to have FDA approval, only acai products which have claimed these cures have had to have approval or are deemed illegal.

Our research of the acai results, in terms of the FDA approval suggests that some products have made these claims whilst others have not, if you are looking to use acai for slimming as a supplement you have no problem, if you intend to use acai for one of the more elaborate claims, we would advise that you stick to the FDA guidelines and only consider products with FDA approval. That would of course involve  FDA approval via  scientific data submitted by a drug sponsor to demonstrate that the drug is safe and effective. Most acai distributors unfortunately have not done this.
The FDA is aware that Internet distributors may not know that the products they offer are regulated as drugs or that these drugs are not in compliance with the law. Other internet retailers are aware of the situation and have not opted to go for FDA approval as they know they can legally market acai as dietary supplements if claims about diagnosis, cure etc are not included. If mitigation, treatment, or prevention are removed from the promotional materials and the products otherwise comply with all applicable provisions of the Act and FDA regulations, there is no problem.
Under the Act, as amended by the Dietary Supplement Health and Education Act, dietary supplements may be legally marketed with truthful and non-misleading claims to affect the structure or function of the body (structure/function claims), if certain requirements are met.

In summary acai results based on FDA acai approval vary, you should have no problem purchasing acai from a legally sound source, if they are selling acai as a dietary or slimming product, just make sure that the product is a proper acai product, make sure it is not a bogus product that does not contain acai in the ingredients. If however you are looking to use acai for a greater cause, ie for the cure of diseases, acai in that regard requires FDA approval, you can expect to see the product display that FDA approval  if they have genuinely received it.