March 2016 in “The Korean Society of Beauty and Art” MSG-based hair hardener improves hair thickness, strength, and wave retention after perms.
2 citations
,
July 2012 in “PubMed” Ceramide-rich liposomes can effectively repair and strengthen damaged hair.
14 citations
,
May 2011 in “Facial Plastic Surgery Clinics of North America” Laser hair removal is effective for dark hair but needs improvement for nonpigmented or fine hairs.
August 2013 in “日本医療薬学会年会講演要旨集” Hair contains complex lipids, including cholesterol and fatty acids, similar to skin.
40 citations
,
February 2002 in “International Journal of Dermatology” Permanent hair dye damages hair but it mostly recovers after 8 weeks; using certain hair care products can help repair it.
13 citations
,
January 2014 in “Aesthetic Surgery Journal” Cyperus rotundus oil effectively reduces unwanted hair without side effects.
August 2021 in “Journal of the American Academy of Dermatology” August 2025 in “Clinical Toxicology” Hair-straightening products with glyoxylic acid may cause kidney damage.
20 citations
,
January 2003 in “Journal of oleo science” Chemical treatments and daily stresses damage hair, especially the cuticle layer.
January 2018 in “Archives of dermatology and skin care” Low level laser therapy may promote hair growth for patterned hair loss, but more research is needed.
September 2024 in “Research Square (Research Square)” Low-level laser therapy effectively treats hair loss and promotes hair growth.
April 2019 in “Digital Library of Theses and Dissertations (Universidade de São Paulo)” Hair straightening at pH 1.0 improves alignment but weakens hair more than pH 2.0.
1 citations
,
January 2017 in “Clinical approaches and procedures in cosmetic dermatology” Hair can't be reliably repaired once damaged; prevention and proper product use are key to maintaining hair health.
37 citations
,
January 1980 in “PubMed” Hair lotions with 17 alpha-estradiol can reduce hair loss but won't regrow new hair.
January 2025 in “Dermatological Reviews” Cyperus rotundus is a promising natural hair removal option with minimal side effects.
1 citations
,
February 2009 in “Journal of Investigative Dermatology” Lipase H is important for hair follicle function and shaping hair fibers.
November 2025 in “Journal of Pharmacognosy and Phytochemistry” The flaxshine hair mask effectively conditions hair using natural ingredients.
January 2013 in “Sen'i Gakkaishi” Microfibrils are key for permanent waves, and hydrolyzed keratin improves wave formation and hair condition.
4 citations
,
May 2015 in “Hair transplant forum international” The review concluded that better studies are needed to prove if Low-Level Laser Therapy devices for hair growth really work.
January 2026 in “International Journal of Biological Macromolecules” Small KP peptide improves hair without reducing agents, while larger proteins need them for better results.
October 2023 in “Journal of Molecular Liquids” A new method using imidazole-based liquids efficiently extracts keratin from yak hair.
April 2025 in “International Journal of Cosmetic Science” A new hair perming method avoids damage and lasts longer than traditional methods.
4 citations
,
March 2008 in “Journal of the American Academy of Dermatology”
May 2024 in “International Journal of Cosmetic Science” Disulfide bonds are crucial for hair's strength, especially when wet.
January 2026 in “Molecules” A new perming method is less damaging to hair and works as well as traditional methods.
4 citations
,
July 2022 in “International Journal of Cosmetic Science” Hair moisture behavior helps tell apart different chemical treatments and reveals insights into hair structure.
4 citations
,
January 2007 in “Sen'i Gakkaishi” Permed hair degrades faster and shows more damage after protease treatment compared to untreated hair.
October 2015 in “Cosmetic Dermatology” Hair styling products and tools help improve hair's look and manageability but can damage hair if used incorrectly.
January 2023 in “Our Dermatology Online” Laser hair removal is effective but may have side effects.
July 2007 in “Manuals in biomedical research”