Ellie Dixon, from Darlaston, had the chop in a bid to raise funds for the Children's Heart federation.
The head shave was streamed live on Facebook from Clair Vanes salon in Coseley.
Originally, Ellie and her partner Nick Hall were going to take on an 874-mile marathon challenge spending 14 days cycling from John O’Groats to Land’s End in August, but due to Covid-19 they have had to reschedule the ride until 2021.
When it became safe to do so, the couple resumed their fundraising events which are in memory of their daughter, Harper, who died from congenital heart disease in July at just a few weeks old.
As well as Ellie's headshave, the pair have also hosted online raffles, charity sales and are planning a 34-mile run from Broad Street in Birmingham, to the River Severn in Worcester while dragging a tyre.
Their fundraising target is £10,000, so far almost £3,000 has been raised.
Speaking about the fundraiser, Ellie said: "Thank you so much to everyone who has shared and donated.
"Without all of you, none of what myself and Nick are doing would be possible. You’re all absolutely amazing and we will forever be grateful."
Nick, aged 35, said: “It’s all in our daughter’s memory, we wanted to leave a legacy. We’ve had so much support from people, especially when they heard about everything we had been through.
“Even my workplace, Interco, has been so supportive and sponsored us for the bike ride, the support we have had has been amazing.
“We never had any help with grieving, so this is giving us something to focus on and we are turning a negative into a positive.”
For more information visit Harper’s Bows on Facebook or visit the JustGiving page.