Your hair may lack protein due to several factors, primarily mishandled chemical treatments or a protein-deficient diet. Let's explore these causes in detail.
Chemical Damage and Heat Styling
Many sources indicate that chemical processing, such as perms, relaxers, and repeated coloring, significantly damages the hair's protein structure. Heat styling, including frequent blow-drying, flat-ironing, and curling, contributes to this damage as well. These processes weaken the hair's internal bonds, leading to a lack of protein and resulting in brittle, damaged strands. [Source: Many things can compromise the protein in your hair, including day-to-day wear and tear. However, Parker says he almost always sees a lack of protein after mishandled chemical treatments or on a client whose diet lacks protein. ]
Dietary Deficiencies
A diet lacking sufficient protein directly impacts hair health. Protein is a fundamental building block of hair, and insufficient intake can lead to weaker, thinner hair that breaks easily. [Source: Parker says he almost always sees a lack of protein after mishandled chemical treatments or on a client whose diet lacks protein. If you think your diet is to blame, be sure to make an appointment with a doctor.] If you suspect a dietary deficiency, consult a doctor or registered dietitian for personalized advice.
Signs of Protein Deficiency in Hair
Several signs can indicate your hair lacks protein:
- Limp and Stringy Hair: Instead of its natural bounce and volume, your hair might appear flat and lifeless. [Source: If you notice your hair is limp and stringy — without the normal bounce that curly and coily hair is known for — you could have a protein deficiency.]
- Increased Breakage and Snapping: Your hair might be more prone to breaking or snapping easily, particularly when dry. [Source: When my hair is dry it'll pretty much always snap right away because again it lacks natural strength.]
- Dullness and Lack of Shine: Your hair might appear lackluster and devoid of its usual shine. [Source: Dull and limp hair is a sign of protein deficiency.]
- Brittle and Bumpy Texture: Hair might feel rough and bumpy instead of smooth. [Source: If your hair strands feel dry, brittle, and bumpy on touch, fair chance you're lacking moisture.]
Addressing Protein Deficiency
Addressing hair lacking protein might involve:
- Reducing chemical treatments and heat styling: Minimize exposure to harsh chemicals and high heat.
- Improving diet: Increase protein intake through foods like lean meats, fish, eggs, beans, and nuts.
- Using protein-based hair products: Consider using conditioners and treatments specifically formulated to add protein to your hair.
