My guess it’s made with spray on beard fibres. Looks like it on most of his cheek.
Like this https://www.amazon.com/dp/B01IAHDXA8
No, there is actually a spray a lot of barbers use that is not bigen. Bigen is it’s own thing.
https://www.amazon.com/NHance-Barber-Fibers-Applicator-Black/dp/B01IAHDXA8