Codon optimization is a novel technique to improve protein expression level in living organism by increasing translational efficiency of target gene. BiologicsCorp provides state-of-the-art algorithms to optimize gene sequences using in-house pre-computed software from a predicted group of highly expressed genes from thousands of samples. Generally, a codon adaptation index (CAI, a widespread technique for codon usage bias analysis) of less than 0.8 calculated by our online CAI calculator is considered as codon optimization needed.