2 citations,
July 2022 in “PubMed” Coconut oil helps with brittle hair and infestations, castor oil may improve hair shine, and argan oil lacks evidence for hair benefits.
1 citations,
January 2018 in “Jornal Brasileiro de Patologia e Medicina Laboratorial” Monilethrix causes brittle hair and hair loss, and it runs in families.
A 5-year-old girl has sparse, dry, and brittle hair but is otherwise healthy.
15 citations,
January 2011 in “International journal of trichology” Using a hot iron on wet hair can cause dry, brittle hair with air bubbles inside.
November 2021 in “Egyptian Journal of Medical Microbiology” COVID-19 protective measures led to skin irritation, hair loss, and brittle nails; using skin-friendly products and a healthy diet is recommended.