Dimethylaminoethanol (DMAE) is similar to choline, a chemical involved in the processes of learning and memory. It has been known to be beneficial for people with autism, memory deficiency, and dementia. DMAE-H3 is a concentrated solution of the PABA (para aminobenzoic acid) salt of DMAE stabilized with benzoic acid. DMAE by itself is alkaline and caustic. Therefore, only salts and esters of DMAE are used. DMAE naturally occurs as liquid in its concentrated form. DMAE naturally occurs in fish.