Hair Wellness Encyclopedia
Every topic, explained from A to Z.
An ever-growing reference library covering hair, scalp, wellness and lifestyle topics. Designed to answer questions today and remain useful for years to come.
Reference entries, kept deliberately short.
Supriya Bhandary ·
Reference entry
Cortisol
Cortisol is the body's main stress hormone. Learn what it does, how prolonged stress may affect the hair cycle, and what research does and does not show.
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Supriya Bhandary ·
7 min read
Cuticle
Learn what the hair cuticle is, how it protects the hair fibre, its role in shine and manageability, and how heat, chemicals and grooming can affect it.
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