Applying conditioner in the middle of a perm process reduces hair damage.
March 2014 in “CRC Press eBooks” Some nutrients and antioxidants may improve skin and hair health, but more research is needed to confirm these benefits.
Perms can damage hair and scalp, so proper assessment and care are essential.
April 2025 in “International Journal of Cosmetic Science” A new hair perming method avoids damage and lasts longer than traditional methods.
January 2002 in “China Surfactant Detergent & Cosmetics” Shampoo D is best for fixing perm-damaged hair.
10 citations
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January 2011 in “Skin research and technology” Procyanidin oligomers can protect hair from oxidative damage and could be good for hair care products.
8 citations
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January 2009 in “Transactions of the Materials Research Society of Japan” Water-soluble wool keratin can protect human hair from damage during treatments.
December 2014 in “Nicolaus Copernicus University Repository (Nicolaus Copernicus University)” Polyquaternium-7 improves hair condition.
3 citations
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June 2008 in “Springer eBooks” Hair care products clean, protect, style, color, and change hair structure.
40 citations
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June 2013 in “Journal of cosmetic dermatology” Brazilian keratin treatments can straighten hair but may contain harmful formaldehyde.
8 citations
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May 2020 in “International journal of biological macromolecules” Certain treatments can increase protein binding to natural hair but are less effective on permed hair.
1 citations
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January 2006 High temperatures and cosmetic processes can damage hair keratin, affecting its structure and strength.
October 2024 in “Cosmetics” ATG effectively reduces hair frizz without damaging hair strength.
11 citations
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October 2020 in “PLoS ONE” Cooling can protect hair follicles from chemotherapy damage by reducing drug uptake.
2 citations
,
January 1968 in “PubMed” Sulfur-containing radioprotectors can protect hair from X-ray damage if given before exposure but worsen damage if given after.
January 2006 in “Journal of Society of Cosmetic Chemists of Japan” The new hybrid polymer improves dyed hair's color, feel, and manageability.
November 2017 in “Koubunshi rombunshuu/Kōbunshi ronbunshū” Hematin in shampoo helps repair and straighten damaged hair.
28 citations
,
January 2016 in “RSC Advances” A non-toxic formula using polycarboxylic acids strengthens and improves hair.
1 citations
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January 2004 in “Cosmetics and toiletries” Polyquaternium-64 helps damaged hair look healthy again.
9 citations
,
January 2021 in “Mediators of Inflammation” 15d‐PGJ2 cream protects against UVB-induced skin damage in mice.
2 citations
,
January 2008 in “Journal of Society of Cosmetic Chemists of Japan” PMS nanoparticles improve damaged hair by protecting and restoring its surface and color.
April 2023 in “Highlights in Science, Engineering and Technology” 12 citations
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July 2012 in “Journal of Applied Polymer Science” Botanical extracts can protect and repair bleached hair.
Chemical treatments weaken hair's thermal stability and structure.
October 2025 in “International Journal of Cosmetic Science” Conditioners improve hair manageability but don't repair damage.
June 2006 in “Journal of the American Academy of Dermatology” Clear glass lets most UV rays through, so it's important to know how well different glasses block UV to protect yourself.
January 2026 in “Colloids and Surfaces B Biointerfaces” A silicone treatment makes damaged hair more water-resistant and stronger.
August 2024 in “Journal of the Korean Society of Cosmetology” Wild peach leaf extract improves hair strength, thickness, and shine after dyeing.
4 citations
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June 2022 in “Journal of cleaner production” New eco-friendly method strengthens and sets hair using light and causes less damage.
October 2017 in “The Japanese Biochemical Society/The Molecular Biology Society of Japan” Some natural compounds might help hair grow.