- Who
- David Reed
- What
- 21.7 centimetre(s)
- Where
- United States (Los Angeles)
- When
The longest arm hair is 21.7 cm (8.54 in) and was achieved by David Reed (USA) at Brentview Medical Center, Los Angeles, California, USA, verified on 26 August 2017.
David made his record-breaking attempt "to impress the ladies".
