Brittle hair comes up whenever hair lacks moisture.

If this goes uncorrected, the hair can become dry and break easily, especially at the ends.

Brittle hair can feel straw-like to the touch.

A dark haired person holding a hair brush with hair on it; they are looking at the brush with concern that their long hair is breaking or falling out.

Hazal Ak / Getty Images

The dryness that leads to brittle hair can happen because of overwashing, styling products, or blow-drying.

Hormonal imbalances, nutrition, and environmental factors can also play a role.

This article explains the signs of brittle hair and what causes it.

It also discusses how to correct dry hair and tips for preventing it.

Common causes of brittle hair include:

Can aging cause brittle hair?

Choose the Right Products

Certain products can dry your hair and cause it to become brittle.

Others can help maintain the moisture levels in your hair and help it stay healthy.

For example:

Tips for Black Hair

Black hair is more prone to damage and dryness.

If you still have brittle hair after adjusting yourhair care routine, talk to your healthcare provider.

Summary

Brittle hair lacks moisture, resulting in dullness, dryness, and frizziness.

Over-styling, washing, chemicals, and heat products often contribute to brittle hair.

Sometimes, hormonal imbalances or malnutrition can cause it.

National Library of Medicine, MedlinePlus.Dry Hair.

American Academy of Dermatology Association.Tips for Healthy Hair.

DiBaise M, Tarleton SM.Hair, nails, and skin: Differentiating cutaneous manifestations of micronutrient deficiency.Nutr Clin Pract.

2019;34(4):490-503. doi:10.1002/ncp.10321

American Academy of Dermatology Association.Black Hair: Tips for Everyday Care.