Potent - getting strength or electric power better than normal or predicted; "a strong radio signal"; "solid medicine"; "a solid gentleman" The phrase 'the strongest' is appropriate, although 'quite possibly the most robust' is incorrect. In English, the superlative method of the adjective 'potent' is 'strongest.' Accurate spelling is vital https://vapeandchews.com/product/strongest-cbd-disposable-vape-uk/