The launch of the know-how at St Pancras station is geared toward easing congestion.
To take part, passengers should use an app earlier than journey to scan their identification doc and confirm their face and ticket.
On the station they stroll in entrance of a display screen and have their face detected.
If they’re permitted they will proceed by means of doorways which open robotically.
The SmartCheck system, developed by iProov, is on the market to Enterprise Premier and Carte Blanche passengers.
Baggage are nonetheless being scanned by safety workers and French border officers are persevering with to examine passports.
It emerged earlier this 12 months that Eurostar was being pressured to go away lots of of seats empty on trains to and from London to keep away from lengthy queues at stations.
The scenario has since improved however dozens of seats should not being supplied on the market on some companies.
Enhanced post-Brexit checks carried out by French border officers have considerably elevated the time it takes to course of passengers on the station.
Eurostar chief govt Gwendoline Cazenave mentioned: “Offering a seamless station expertise to our clients is a precedence for Eurostar.
“We proceed searching for options to extend capability in stations and simplify the passengers’ flows.
“SmartCheck in St Pancras Worldwide station is an answer for a sooner and seamless check-in expertise.
“By introducing SmartCheck, we turn into the primary rail journey operator to undertake biometric face verification.
“This innovation will improve our buyer departure journey, which is essential to supply Eurostar’s distinctive journey expertise.”
Andrew Bud, chief govt of iProov, mentioned: “The rollout of SmartCheck in Eurostar’s Enterprise Premier check-in at London St Pancras is critical as a result of it clearly demonstrates how facial biometric know-how can be utilized to handle border management in a better and extra environment friendly method, to learn each organisations and passengers at scale.
“By making a biometric hall, we’re transferring safety checks away from the station, saving treasured time and area on the border, streamlining the boarding course of to at least one that’s far sooner, extra handy, much less crowded and worrying, but much more safe.”
Heathrow Airport started trialling facial biometric scanners in 2019 however the undertaking was dropped when passenger numbers collapsed because of the coronavirus pandemic.