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GlossaryTensile Strength

maximum stress a material endures before breaking when stretched

Tensile strength, also known as ultimate tensile strength (UTS), is the maximum amount of stress a material can withstand while being stretched or pulled before breaking. In the context of hair, it refers to the force required to break a strand of hair when it is pulled from both ends. This property is crucial for understanding the durability and resilience of hair fibers, which can be affected by factors such as chemical treatments, environmental exposure, and overall hair health.

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Evaluation Method of the Degree of Hair Damage: Measurement of Tensile Strength of Human Hair by the Multi-Point Tension Test Method

research Evaluation method of the degree of hair damage. (I). Measurement of tensile strength of human hair by "the multi-point tension test method".

1 citations , January 1987 in “Journal of Society of Cosmetic Chemists of Japan”

The method accurately measures hair damage and strength, revealing effects of cosmetics and metal correlations.

research Novel Compounds for Hair Repair: Chemical Characterization and In Vitro Analysis of Thiol Cross-Linking Agents

April 2025 in “Pharmaceuticals”

APA is a promising new compound for repairing damaged hair, outperforming Olaplex® in strength and elasticity.

Impact of Acid Straightener's pH Value on Hair Fiber Properties

research Impact of acid straightener's pH value in the hair fiber properties

3 citations , June 2019 in “Journal of cosmetic dermatology”

Lower pH straighteners change hair more but weaken it.

research Fiber-Safe Extraction of Red Mordant Dyes from Hair Fibers

13 citations , January 1995 in “Journal of the American Institute for Conservation”

Researchers developed a less damaging way to extract red dyes from wool using EDTA and DMF, preserving the fiber's strength for further analysis.

research Electrospun Scaffold of Collagen and Polycaprolactone Containing ZnO Quantum Dots for Skin Wound Regeneration

23 citations , November 2021 in “Journal of Bionic Engineering”

The new wound dressing helps skin heal faster and fights infection.

research Protective and Restorative Effects of a Bio-Based Crosslinking Complex on Chemically Damaged Hair

December 2025 in “Cosmetics”

The bio-based complex effectively repairs and protects chemically damaged hair.

Bleached Hair as a Standard Template to Evaluate the Performance of Commercial Hair Repair Products

research Bleached Hair as Standard Template to Insight the Performance of Commercial Hair Repair Products

August 2024 in “Cosmetics”

K18® and Olaplex® both effectively repair bleached hair, improving its strength, smoothness, and overall health.

research Nano Herbal Hair Spray: A Synergistic Blend For Hair care

April 2025 in “International Journal For Multidisciplinary Research”

The nano-herbal hair spray effectively strengthens hair and reduces dandruff naturally.

research Effective Penetration of the Oxidized Keratin‐Rebonding Materials Into Hair Shafts Based on Charge Conversion

November 2025 in “Advanced Healthcare Materials”

Charge-conversion chemistry improves hair-rebonding by enhancing penetration and strength.

research Mechanical properties characterization of human hair fibers cortex region by multiparametric Atomic Force Microscopy mapping

October 2021 in “Digital Library of Theses and Dissertations (Universidade de São Paulo)”

The active ingredient improves the strength of damaged hair fibers.

research Effects of Hair Follicle Stem Cells on Partial-Thickness Burn Wound Healing and Tensile Strength

38 citations , December 2019 in “Iranian Biomedical Journal”

Hair follicle stem cells help burns heal faster and stronger.

Evaluation of Sensory Parameters and Tensile Strength on Damaged Hair After Ten Washes With Mintop Shampoo: An In Vitro Study

research Evaluation of sensory parameters and tensile strength on damaged hair after ten washes with Mintop shampoo: in vitro study

October 2023 in “International journal of research in dermatology”

Mintop shampoo improved hair smoothness, shine, and strength after ten washes.

research TENSILE STRENGTH OF SCALP HAIR IN WOMEN WITH HAIR LOSS

November 2020 in “INDIAN JOURNAL OF APPLIED RESEARCH”

Women with hair loss have weaker hair that breaks more easily.

research Evaluation of hair damage treated with oxidative hair dye under influence of conditioners agents

1 citations , January 2010 in “LA Referencia (Red Federada de Repositorios Institucionales de Publicaciones Científicas)”

Conditioners improved hair protein retention and combing ease, with some providing thermal protection.

research Tensile properties of twisted hair fibers

1 citations , March 2005 in “International Journal of Cosmetic Science”

Twisting hair weakens it, but strength can be recovered at low twist levels.

research Effect of oil application, age, diet, and pigmentation on the tensile strength and breaking point of hair

6 citations , January 2016 in “International journal of trichology”

Children's hair is more elastic, but tensile strength is similar across different factors.

research Effect of Temperature and Humidity on Mechanical Properties of Rabbit Hair Fibers

October 2012 in “Advanced Materials Research”

Higher temperatures improve rabbit hair strength up to 50°C, but moisture weakens it.

research A single arm, exploratory and pilot study to evaluate the efficacy of a multi-component water-based herbal supplement in hair growth, density, follicle strength and hair fall in healthy male and female subjects

September 2021 in “IP Indian Journal of Clinical and Experimental Dermatology”

The herbal supplement improved hair growth, density, and strength without side effects.

research Effect of Aspartic Acid Intermediate Treatment on Virgin Hair by Permanent Wave

1 citations , April 2021 in “Han'gug miyong haghoeji/Journal of the Korean society of cosmetology”

Aspartic acid at 0.75% makes perms more effective and less damaging to hair.

Transplantation of Bone-Marrow-Derived Mesenchymal and Epidermal Stem Cells Contribute to Wound Healing with Different Regenerative Features

research Transplantation of bone-marrow-derived mesenchymal and epidermal stem cells contribute to wound healing with different regenerative features

36 citations , April 2013 in “Cell and Tissue Research”

Bone-marrow and epidermal stem cells help heal wounds differently, with bone-marrow cells aiding in blood vessel formation and epidermal cells in hair growth.