Search

everythingexperts & clinicslearnfaqsresearchcommunity

for

Search:↓

This study conducted in situ tensile loading experiments with atomic force microscopy to observe how conditioning treatments affect the tensile response of virgin, chemically damaged, and mechanically damaged Caucasian hair.

This study found that low level laser therapy with a HairMax LaserComb improved hair counts and tensile strength in patients with androgenetic alopecia, particularly in males and vertex areas.

This study found that maintaining tension-force balance in a human skin equivalent improved characteristics of skin homeostasis and structure, suggesting potential as an alternative to animal models for studying skin physiology.

This study investigated the tensile response and morphological changes of different ethnic hair types using AFM, showing variations between virgin, chemically damaged, and conditioner-treated Caucasian hair under different conditions.

This study found that hair follicle stem cells could enhance burn wound healing and improve tissue tensile strength in rats.

This study found that extensive cuticle damage from diperisophthalic acid oxidation did not alter the tensile properties of human hair, suggesting that these properties are mainly due to the cortex rather than the cuticle.

In this study, children's hair showed statistically higher elasticity than elderly hair, but no significant differences were observed in tensile strength between dietary or oil application groups, or between pigmented and nonpigmented hair.

Animal hair fibers like wool and mohair are strong when dry, but vicuna fibers are very brittle.

This study found no significant difference in the tensile properties of hair from different scalp positions, suggesting that microscopic structural heterogeneities may play a role.

This study observed that the biophysical properties of hair in Caucasian females with brown hair significantly change with age, and smoking or being overweight was linked to smaller hair cross-sectional areas.

This study found that Type 3 hair oil penetrated the hair shaft more effectively than coconut oil, resulting in greater increases in hair thickness and tensile strength.

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

This study used a multi-point tension test method to evaluate hair damage over time and found it useful for assessing the effects of cosmetics and metal content on hair strength.

This narrative review from the authors discusses mechanical scalp stimulation as a potential treatment for androgenetic alopecia, suggesting it has a biologically plausible mechanism but immature clinical evidence; marketing of these devices currently outpaces their supporting data, indicating a need for better-controlled trials.

In this study, researchers developed a new 6-point scale for evaluating heat damage to hair from straighteners, finding a strong correlation between technical damage measurements and human perception of hair damage.

This study found that after using Mintop Shampoo for 10 wash cycles, significant improvements in hair detangling, combability, static reduction, shine, softness, smoothness, bounce, tensile strength, and percentage elongation were observed compared to the initial damaged state.

This study suggests that while DI water significantly impacts hair, the effects of citric acid, hydrogen peroxide, and sodium chloride in shampoo on hair remain unclear, requiring further investigation.

This study found that women with alopecia have significantly lower tensile strength in both dry and wet hair samples compared to controls, indicating increased hair breakability.

This study compared hydrolysed wheat protein, L-arginine, and hydrolysed collagen for their effectiveness in enhancing the tensile strength of heavily bleached hair.

This article discusses the social and physical significance of hair and highlights the impressive tensile strength of keratin-rich human hair, reporting no new results.

Hair fibers break by cuticle cell slipping, shape changing, cuticle fraying, and surface cracking when stretched under specific conditions.

This study found that 3D microtissue models of dermal papilla cells can enhance the ability to induce hair-follicle neogenesis in vivo, offering potential for controlled cell production in follicle regeneration.

This study investigated the role of the glycoprotein Thy-1 in hypertrophic scar formation using a murine model, finding that Thy-1 knockdown reduced scar size and encouraged functional regeneration by influencing the p38MAPK signaling pathway under high-tension conditions.

This narrative review suggests that while mechanical scalp stimulation has a plausible mechanism for aiding androgenetic alopecia, its clinical evidence is insufficient, and the marketing of stimulation devices currently outpaces their efficacy data.

In this study, a copolymer made from Tung oil and Tung free fatty acids demonstrated improved mechanical and thermal properties for hair repair, with enhanced resistance and flexibility observed in treated bleached hair, suggesting its potential as a sustainable biopolymer for cosmetic applications.

Mechanical tension worsens keloid scars by activating inflammation and fibrosis pathways.

In this study, the researchers conducted tensile tests on individual curly human hair fibers sourced from a female donor and found distinct mechanical properties under various conditions, including different strain rates and temperatures, both dry and in saline immersion.

This case series reports successful treatment of refractory folliculitis decalvans using surgical excision with second-intention healing and guarded high-tension suturing, resulting in long-term remission without recurrence over a 10–24 month follow-up period.

In this study, hair follicle stem cells were reported to accelerate burn wound healing and increase tissue tensile strength in rats.

This study found that Anigozanthos Flavidus flower extract may improve skin elasticity and reduce wrinkles by increasing essential extracellular matrix proteins in both in vitro and in vivo settings.