Flexabrasion Applied to the Evaluation of the Photodegradation of Hair Fibers
Solar radiation is a significant source of damage to hair fibers. However, the instrumental measurement of the consequences of its interaction with hair fibers’ constituents remains a challenge. In this work, the flexabrasion methodology was investigated as a potential tool to quantify the damage to...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-12-01
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| Series: | Cosmetics |
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| Online Access: | https://www.mdpi.com/2079-9284/9/1/1 |
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| author | Nathália F. de Oliveira Rima Rakshit Anthony Galliano Daiane Garcia Mercurio Elcio Cruz de Oliveira Elisabeth Costa Monteiro |
| author_facet | Nathália F. de Oliveira Rima Rakshit Anthony Galliano Daiane Garcia Mercurio Elcio Cruz de Oliveira Elisabeth Costa Monteiro |
| author_sort | Nathália F. de Oliveira |
| collection | DOAJ |
| description | Solar radiation is a significant source of damage to hair fibers. However, the instrumental measurement of the consequences of its interaction with hair fibers’ constituents remains a challenge. In this work, the flexabrasion methodology was investigated as a potential tool to quantify the damage to mechanical hair properties caused by solar rays. The in vitro experiment developed for this study simulated four initial conditions of human hair samples, which subsequently underwent different periods of exposure to the radiation emitted by a Xenon arc lamp source. The statistical analysis of the results characterized the methodology’s ability to evaluate the impact of solar radiation on the hair’s mechanical resistance. More evident effects were observed on natural fibers subjected to exposures of up to 60 h and over, corresponding to about 1.5 h per day of sun exposure in Rio de Janeiro over five months. The results point to flexabrasion as an option to evaluate the photoprotection efficacy offered by hair-care products. |
| first_indexed | 2024-04-12T22:50:27Z |
| format | Article |
| id | doaj.art-9fac2b22d1734ac188f04891cb36edc0 |
| institution | Directory Open Access Journal |
| issn | 2079-9284 |
| language | English |
| last_indexed | 2024-04-12T22:50:27Z |
| publishDate | 2021-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Cosmetics |
| spelling | doaj.art-9fac2b22d1734ac188f04891cb36edc02022-12-22T03:13:22ZengMDPI AGCosmetics2079-92842021-12-0191110.3390/cosmetics9010001Flexabrasion Applied to the Evaluation of the Photodegradation of Hair FibersNathália F. de Oliveira0Rima Rakshit1Anthony Galliano2Daiane Garcia Mercurio3Elcio Cruz de Oliveira4Elisabeth Costa Monteiro5Postgraduate Programme in Metrology, Pontifical Catholic University of Rio de Janeiro, Rio de Janeiro 22451-900, BrazilL’Oréal Research & Innovation, Mumbai 400071, IndiaL’Oréal Research & Innovation, 93400 Saint Ouen, FranceL’Oréal Research & Innovation, Rio de Janeiro 21941-972, BrazilPostgraduate Programme in Metrology, Pontifical Catholic University of Rio de Janeiro, Rio de Janeiro 22451-900, BrazilPostgraduate Programme in Metrology, Pontifical Catholic University of Rio de Janeiro, Rio de Janeiro 22451-900, BrazilSolar radiation is a significant source of damage to hair fibers. However, the instrumental measurement of the consequences of its interaction with hair fibers’ constituents remains a challenge. In this work, the flexabrasion methodology was investigated as a potential tool to quantify the damage to mechanical hair properties caused by solar rays. The in vitro experiment developed for this study simulated four initial conditions of human hair samples, which subsequently underwent different periods of exposure to the radiation emitted by a Xenon arc lamp source. The statistical analysis of the results characterized the methodology’s ability to evaluate the impact of solar radiation on the hair’s mechanical resistance. More evident effects were observed on natural fibers subjected to exposures of up to 60 h and over, corresponding to about 1.5 h per day of sun exposure in Rio de Janeiro over five months. The results point to flexabrasion as an option to evaluate the photoprotection efficacy offered by hair-care products.https://www.mdpi.com/2079-9284/9/1/1metrologyhair fibersolar radiationphotoprotectionMann–Whitney non-parametric testflexabrasion |
| spellingShingle | Nathália F. de Oliveira Rima Rakshit Anthony Galliano Daiane Garcia Mercurio Elcio Cruz de Oliveira Elisabeth Costa Monteiro Flexabrasion Applied to the Evaluation of the Photodegradation of Hair Fibers Cosmetics metrology hair fiber solar radiation photoprotection Mann–Whitney non-parametric test flexabrasion |
| title | Flexabrasion Applied to the Evaluation of the Photodegradation of Hair Fibers |
| title_full | Flexabrasion Applied to the Evaluation of the Photodegradation of Hair Fibers |
| title_fullStr | Flexabrasion Applied to the Evaluation of the Photodegradation of Hair Fibers |
| title_full_unstemmed | Flexabrasion Applied to the Evaluation of the Photodegradation of Hair Fibers |
| title_short | Flexabrasion Applied to the Evaluation of the Photodegradation of Hair Fibers |
| title_sort | flexabrasion applied to the evaluation of the photodegradation of hair fibers |
| topic | metrology hair fiber solar radiation photoprotection Mann–Whitney non-parametric test flexabrasion |
| url | https://www.mdpi.com/2079-9284/9/1/1 |
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