September 2017 in “Journal of Investigative Dermatology” HIF-1A may aid hair growth, Backhousia citriodora improves skin, autologous cells stabilize hair loss, infrared thermography assesses alopecia, and a new treatment preserves hair.
8 citations
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November 2022 in “International Journal of Cosmetic Science” Human hair varies widely and should be classified by curl type rather than race.
1 citations
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March 2019 in “International Journal of Cosmetic Science” The model predicts hair breakage based on key hair properties and helps product developers.
August 2024 in “Journal of the Korean Society of Cosmetology” Wild peach leaf extract improves hair strength, thickness, and shine after dyeing.
September 2021 in “IP Indian Journal of Clinical and Experimental Dermatology” The herbal supplement improved hair growth, density, and strength without side effects.
April 2021 in “Han'gug miyong haghoeji/Journal of the Korean society of cosmetology” Eating raw cheonggukjang improves scalp hair in middle-aged women.
42 citations
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April 2008 in “Acta materialia” Different ethnicities and treatments affect human hair strength and structure.
July 2023 in “Research Square (Research Square)” Skin's uneven surface and hair follicles affect its stress and strain but don't change its overall strength, and help prevent the skin from peeling apart.
October 2024 in “Cosmetics” ATG effectively reduces hair frizz without damaging hair strength.
June 2016 in “한국디자인문화학회지” UVA damages all hair types, especially permanently waved and colored hair.
Taking enzyme food and collagen together improves hair health in middle-aged women more than taking them separately.
5 citations
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November 2024 in “Frontiers in Nutrition” LB-P9 supplements improve hair health and satisfaction without side effects.
June 2024 in “Molecules/Molecules online/Molecules annual” Platycladus orientalis flavonoids protect balding hair from UV damage and slow hair color change.
December 2022 in “Cosmetics” The food supplement improved hair growth and strength in people with a certain type of hair loss and had no major side effects.
7 citations
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September 2020 in “International Journal of Cosmetic Science” Different sizes of keratin peptides can strengthen hair, with smaller ones possibly increasing volume and larger ones repairing damage.
1 citations
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January 2017 in “Ancient science of life/Ancient Science of Life” Vatika Enriched Coconut Hair Oil is safe and more effective than regular coconut oil for reducing hair fall and dandruff.
January 2026 in “International Journal of Peptide Research and Therapeutics” Collagen supplements improve hair health and are safe.
April 2025 in “Pharmaceuticals” APA is a promising new compound for repairing damaged hair, outperforming Olaplex® in strength and elasticity.
November 2022 in “International journal of trichology” Glyoxylic acid straighteners cause more protein loss but have similar hair strength effects as traditional alkaline straighteners.
5 citations
,
January 2018 in “International Journal of Trichology” Hair strength is similar across different scalp areas, and not affected by age, gender, or hair thickness.
1 citations
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November 2022 in “Molecules/Molecules online/Molecules annual” Low-molecular weight hyaluronate can make damaged hair stronger.
March 2026 in “Cosmetics” Type I collagen, elastin, keratin, ceramides, and melanin improve hair strength, growth, and health.
December 2025 in “Cosmetics” The bio-based complex effectively repairs and protects chemically damaged hair.
August 2024 in “Cosmetics” K18® and Olaplex® both effectively repair bleached hair, improving its strength, smoothness, and overall health.
2 citations
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September 2004 in “International Journal of Cosmetic Science” Hair quality is genetically determined and linked to its composition and strength.
41 citations
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May 2018 in “Nutrition and healthy aging” Skin aging is largely due to differences in stiffness and elasticity between skin layers, leading to wrinkles.
18 citations
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August 2017 in “PLOS ONE” Skin and its underlying fat layer act together to resist mechanical stress, and reinforcing this composite structure may help more with anti-aging than just strengthening the skin alone.
May 2023 in “Current Applied Science and Technology” Higher power CO2 laser causes more severe skin burns and damage.
January 1989 in “Clinical and Experimental Dermatology” The symposium concluded that hair growth involves complex processes, including the hair follicle life cycle, the role of the dermal papilla, hair strength, pigmentation, and the impact of diseases and treatments like minoxidil on hair and skin.
August 2025 in “Journal of Investigative Dermatology” Fibronectin is essential for hair follicle regeneration and may help rejuvenate aged skin.