Trichologist: you can't "repair" hair from outside – 4 common mistakes

Trichologist Anna Mackojć from the Institute of Trichology debunks the widespread belief that hair can be "nourished" or "rebuilt" from the outside — the hair shaft is a dead structure, and no mask can repair it from within. She identifies four of the most common hair-care mistakes that lead to weakening and hair loss, stressing that proper care focuses on the scalp rather than the shaft itself.