Water-Soluble Polymers in Hair Care

January 2002 in “ Springer eBooks ”

Ali N. Syed, Wagdi W. Habib, Anna M. Kuhajda

alkaline hair relaxers disulfide bonds hydrogen bonds tensile strength cuticle erosion hair fibers cationic polymers non-ionic polymers

TLDR Alkaline hair relaxers damage hair, but cationic and non-ionic polymers can help reduce this damage.

The study from 2002 examined the damaging effects of alkaline hair relaxers on excessively curly hair, particularly African-American hair. It highlighted that relaxers cause significant hair damage by breaking disulfide and hydrogen bonds, leading to a loss in tensile strength and increased susceptibility to breakage and cuticle erosion. Additionally, the study noted that hair fibers swell significantly during the highly alkaline treatment, causing radial and longitudinal cracks. To mitigate these issues, the research presented the use of cationic polymers to strengthen hair during relaxing and non-ionic polymers to control hair swelling.

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Related Research

3 / 3 results

research Effects of Perming, Combing and Stretching on Hair Keratins

November 2001 in “PubMed”

Perming, combing, and stretching damage hair by reducing keratin.

research Effects of Perming, Combing, and Stretching on Hair Keratins

January 2001

Perming, combing, and stretching damage hair by reducing keratin levels.

research Disorders of Hair Growth: Diagnosis and Treatment

26 citations , January 1994 in “McGraw-Hill eBooks”

Many hair loss conditions can be treated.