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Hair straightening methods have advanced to improve effectiveness and reduce damage, but still rely on heat and chemicals.

Hair care practices like using relaxers and tight braiding can lead to permanent hair loss in black women.

This study found that repeated cycles of wetting and blow-drying hair fibers can cause cracks in the hair cuticles, particularly among individuals who frequently blow-dry their hair.

This study found that using a hair dryer at 15 cm with continuous motion causes less surface damage to hair compared to natural drying, although higher temperatures increased overall surface damage.

This abstract reviews the bubble hair abnormality caused by high-temperature styling tools and reports no new experimental results.

This review re-examines hair blowouts as a material science process, where water acts as a plasticizer altering keratin's glass-transition temperature, allowing for temporary hair shaping through a moisture-induced matrix state change under heat and tension.

This study established a model of heat-damaged hair to assess hair care products, finding that daily hair drying for a month causes notable cuticle lifting, reduced mechanical properties, and increased protein release, and the model simulates even more severe damage.

This review discusses the potential of flame retardant polyamide materials with glass fiber and graphene as a better performing alternative to acrylonitrile butadiene styrene for hair dryer housings, noting improvements in heat resistance, flame retardancy, durability, and UV resistance.

This study developed mathematical models showing that heat penetrates individual hair quickly but takes longer to reach the center of hair bundles, helping understand potential damage from high-temperature styling tools.

This review discusses the potential risks of formaldehyde in hair keratin treatments like Brazilian blow-dry, and reports no new clinical results; it emphasizes the need for greater safety assessments including occupational exposure.

Frequent hairdryer use may worsen hair fragility in people with Pili Annulati.

This report describes a classic case of bubble hair, an acquired hair shaft abnormality, in a 22-year-old woman after using a hot iron on wet hair.

This study found that plasma jets can effectively clean and oxidize human hair fibers, with argon/oxygen plasma having the strongest effects, suggesting potential as an alternative to peroxide treatment.

This study reports two cases of bubble hair deformity in young men caused by prolonged exposure to bathroom heating lamps during showers, suggesting that maintaining a safe distance from heating devices may prevent this thermal injury to hair.

This study reports that the candle flame technique "velaterapia," popular in Brazil for addressing split ends, can damage hair fibers due to bubble formation at high temperatures, despite thermal protectors providing some cuticle protection.

This study verified that a new straightening process involving a flat iron, ammonium thioglycolate, and hydrogen peroxide may permanently straighten wavy hair by eliminating disulfide bond distortions.

This article reviews various hair straightening methods, discussing their mechanisms and potential effects on hair, but it reports no new clinical results.

This study found that controlled thermal straightening can achieve irreversible smoothing of curly hair without chemicals, with effectiveness dependent on temperature and cycles, and silicone enhancing straightening quality.

This study found that massaging hair treatments into hair improved the treatment's effectiveness by reducing hair waviness and enhancing shape cohesion.

This research demonstrates that a temperature controllable medical chilling device using thermal electric cooling technology effectively maintains constant cell temperatures, potentially improving tissue viability during hair transplant procedures.

This review discusses the chemical processes involved in hair styling and straightening and reports no new results; the authors highlight pregnancy safety with hair treatments during pregnancy.

This study found that thermoporometry measurements effectively assessed hair porosity, showing that bleaching increases overall pore volume by adding smaller pores, while prolonged bleaching leads to fewer but larger pores likely due to pore-merging.

This report from Tangle Teezer and TRI Princeton indicates that their Extra Gentle brush reduces hair breakage by up to 39%, offering a therapeutic experience for users with fragile scalps.

This study examined the effects of one-time versus two-time hair bleaching in people from Padang City, finding that two-time bleaching significantly increased hair dryness and reduced elasticity compared to one-time bleaching, emphasizing the importance of considering bleaching frequency for hair health.

This study examined two cases of bubble hair deformity using light and electron microscopy, suggesting that trauma to the hair shaft may contribute to this condition.

This study found that pneumatic skin flattening (PSF) significantly reduces pain and post-treatment erythema during high-energy IPL and laser hair removal while enhancing treatment efficacy.

This study evaluated an in vitro inhalation method to assess the toxicological impacts of aerosols from heated hair products, revealing significant differences in cellular stress and IL-8 release among different test materials, which may help in developing safer products.

This study developed a portable electrospinning device that mimics hair for cosmetic thickening in a mouse model, showing performance comparable to benchtop models with added safety and cost benefits.

A woman got severe scalp burns from a salon's improper hair bleaching treatment.

This study concluded that the Spa Touch system effectively retards hair regrowth, functioning like a "light razor" for quick and cost-effective epilation.