On 17 March 1800, the regiment was renamed to Lifeguards of His Imperial Highness Konstantin Pavlovich (Лейб-гвардии Его Императорского Высочества Константина Павловича), and then on 28 May of the same year to Lifeguard of His Imperial Highness Nikolai Pavlovich (Лейб-гвардии Его Императорского Высочества Николая Павловича).

Throughout its history under the Russian Empire, the regiment wore the standard uniform of the Infantry of the Imperial Guard, which from 1683 to 1914 was predominantly of a dark green (eventually verging on black) colour.

The main distinctions of the Izmaylovsky Regiment were the red facings (plastron, cuffs and shoulder straps) edged in white piping.

[3] In 1912, in recognition of its long and distinguished record, officers of the regiment were authorised to wear a large metal gorget of a design dating from 1732.

For the Izmaylovsky Regiment conscripts were selected on the basis of their hair colour (brown), and beards (the latter being required for the first company of each battalion only).