13 citations
,
September 2017 in “International Journal of Cosmetic Science” Thioglycerol treatment at pH 9.0 with ammonia causes less hair damage and better waving than thioglycolic acid.
2 citations
,
July 2019 in “Cosmetics” Beautiful hair is flexible and elastic due to its unique double-layered structure and can be enhanced with succinic acid treatment.
Human hair can almost fully recover its structure within about 1,000 minutes after being stretched.
75 citations
,
November 1965 in “Textile research journal” Papain and bisulfite break down human hair by dissolving parts of it.
1 citations
,
November 2023 in “Cosmetics” Surfactants damage hair, but sealing the cuticle can prevent this.
January 2021 in “Lecture notes in mechanical engineering” High temperatures, acidic conditions, and too much coconut oil damage hair, while a pH of 5 to 7 keeps it healthy.
Modern hair styling products don't repair hair but improve its surface and stability.
11 citations
,
October 2020 in “PLoS ONE” Cooling can protect hair follicles from chemotherapy damage by reducing drug uptake.
August 2024 in “Cosmetics” K18® and Olaplex® both effectively repair bleached hair, improving its strength, smoothness, and overall health.
34 citations
,
December 2009 in “Journal of the American Academy of Dermatology” Improper use of ceramic flat irons can cause severe hair damage.
2 citations
,
February 2016 in “Journal of sol-gel science and technology” A small molecule can strengthen fine hair, making it more resistant and natural-feeling.
13 citations
,
March 2006 in “International Journal of Cosmetic Science” The study found that a polymer treatment changes the charge on hair surfaces, making bleached hair smoother and less porous.
August 2025 in “Applied Sciences” Peroxide-rich plasma-activated water is gentler on hair than nitrate-rich formulations.
58 citations
,
March 1985 in “Journal of The American Academy of Dermatology” The document concludes that electrolysis and thermolysis can permanently remove hair but calls for better regulation to ensure safety, and notes a possibility of hair regrowth and rare complications.
3 citations
,
June 2023 in “ACS sustainable chemistry & engineering” The study found a green method for strengthening hair works on all hair colors and is eco-friendly.
5 citations
,
June 2013 in “Fashion business” Rosehip extract improves hair wave, thickness, and color vibrancy.
11 citations
,
June 2018 in “Annales de dermatologie et de vénéréologie” Hair care products can cause skin irritation and allergies.
8 citations
,
January 1968 DMSO causes reversible swelling in hair but has a complex, less reversible effect on skin.
13 citations
,
June 2011 in “International Journal of Cosmetic Science” Human hair absorbs calcium and magnesium from tap water, affecting its structure and styling properties.
107 citations
,
September 1968 in “Archives of Dermatology” Using hot combs can cause permanent hair loss on the scalp's crown.
19 citations
,
April 2021 in “Journal of Cosmetic Dermatology” The treatment with silk proteins and linseed polysaccharides effectively protects and repairs chemically damaged hair.
February 2025 in “Biomimetics” The shampoo straightens hair while keeping it healthy and less damaged.
January 2008 in “대한미용학회지” UV exposure severely damages hair, making it rough and weak.
15 citations
,
January 2003 in “Lasers in Surgery and Medicine” Cold air and a chilled sapphire window both protect the skin during laser treatments, and work better with water or gel, especially for darker skin.
June 2025 in “Cancer Management and Research” Improving hair health and managing conditions can enhance scalp cooling effectiveness in preventing hair loss during chemotherapy.
11 citations
,
January 2000 in “Journal of cosmetic science” Hydrolyzed wheat proteins penetrate all hair types effectively.
June 2017 in “University of the Arts London Research Online (University of the Arts London)” Polymers help reduce damage and improve bleached hair when used during or after bleaching.
9 citations
,
July 2014 in “Skin research and technology” Stretching damages Caucasian hair's structure more easily than Asian hair.
July 2022 in “Siriraj Medical Bulletin” The conditioner effectively strengthens and smooths hair, offering a natural alternative.
October 2015 in “Cosmetic Dermatology” Hair styling products and tools help improve hair's look and manageability but can damage hair if used incorrectly.