3. Beard facts
• Oval hair shaft
• Longer telogen stage/shorter growth
• Cultural differences
• Beard develops during puberty
• Is controlled by dihydrotestosterone,
• Dihydrotestosterone is produced from
testosterone, the levels of which vary with
season; thus beards grow faster in summer
4. • Beard growth is linked to stimulation of hair
follicles in the area by which continues to
affect beard growth after puberty.
• Hair follicles from different areas vary in what
hormones they are stimulated or inhibited by;
dihydrotestostorone also promotes balding.