The lads joined Mo Bros across the world and throughout Teesside in cultivating their Mos to help raise vital funds and awareness of prostate cancer and men's health during the month formerly known as November.
Now they're asking supporters to back their efforts.
All fans have to do is click hereto join or donate to the squad.
Boro's support for Movember coincides with a year-long programme of activity in support of Prostate Cancer UK, which is the Football League's Official Charity Partner for the 2012/13 season.
One in nine men will get prostate cancer in the UK. Money raised will help more men survive the disease and have a better quality of life.
Senior Professional Development Phase Coach Jamie Clapham encouraged the lads in his squad to take part.
"We're thrilled to help Prostate Cancer UK fight the most common cancer in men," he said.
"Some very interesting top lip specimens emerged all over the club. We'd really encourage all fans to back the lads and help us raise as much as possible for Movember.
"Movember's a brilliant initiative to raise awareness of prostate cancer among our players, staff and supporters alike.
"With 250,000 men living with prostate cancer in the UK - enough to fill Wembley Stadium three times over - there's a real need to support those affected by the disease now and invest in research for the future."
Movember has also seen the return of one of the club's most famous taches as non-executive director Keith Lamb grew his back.
So far Keith's family and friend have donated almost £400 to support his efforts.