Hair science draws on research that varies widely in design, population, and timeframe. These differences can produce findings that appear to conflict, making interpretation challenging.
Some studies examine short-term changes, while others observe long-term patterns. Populations studied may not reflect the diversity of real-world experiences. Outcomes measured may differ in meaning or relevance.
Anecdotal experiences feel compelling because they are personal and relatable, but they do not replace structured evidence. Understanding evidence involves asking who was studied, how long observations were made, and what conclusions were actually supported.
Evidence does not provide certainty; it provides context. As research evolves, understanding shifts. Learning to interpret claims critically supports informed, cautious engagement. This helps explain why generalised hair advice often fails to translate reliably between individuals, as discussed here. rather than certainty or scepticism.
Gentle disclaimer:
Scientific understanding evolves as evidence develops.
Suggested Reading
For related discussion on applying information in practice, see:
• Why “One-Size-Fits-All” Hair Advice Is Unreliable
• Understanding Hair Shedding vs Hair Thinning