The website of Personal Care Global

Green tea extracts for hair protection

According to a new study funded by P&G and published in the Journal of Cosmetic Dermatology, Camellia sinensis (green tea) extracts can be used as treatments for hair protection. This efficacy is linked to extract concentrations of catechins.

In ‘Protection of hair from damage induced by ultraviolet irradiation using tea (Camellia sinensis) extracts’, researchers describe how they tested the power of this botanical antioxidant to prevent changes in hair protein composition and colour changes resulting from breakdown of yellow-coloured kynurenines.

Extracts were analysed by LC-MS to identify the key composition chemistries. Oxygen radical antioxidant capacity (ORAC) was used to measure the ability of the extract to react with a peroxyl radical via a hydrogen abstraction mechanism. Hair protein structural damage was measured by quantifying a biomarker peptide specific to UV-induced damage, while hair colour changes were measured with a spectrophotometer.

It was found that levels of key phytochemistry in the extracts, specifically the catechins, correlated with the prevention of UV-induced protein damage of colour changes due to kynurenine breakdown. Extracts with higher phytochemical levels also had higher ORAC scores, indicating that they were more effective antioxidants.

Upcoming Events

Cosmetorium 2022

Palau de Congressos de Barcelona
28 - 29 September

in-cosmetics Formulation Summit

Leonardo Royal Hotel, London
25 - 26 October

SEPAWA 2022

Estrel Congress Center, Berlin
26 - 28 October

in-cosmetics Asia 2022

BITEC Bangkok, Thailand
1 - 3 November 2022

Plastic Waste Free World Europe 2022

Koelnmesse, Cologne, Germany
09-10 Nov 2022

The Greener Manufacturing Show Europe 2022

Koelnmesse, Cologne, Germany
09-10 Nov 2022

Access the latest issue of Personal Care Magazine on your mobile device together with an archive of back issues.

Download the FREE Personal Care Magazine app from your device's App store

Upcoming Events

Cosmetorium 2022

Palau de Congressos de Barcelona
28 - 29 September

in-cosmetics Formulation Summit

Leonardo Royal Hotel, London
25 - 26 October

SEPAWA 2022

Estrel Congress Center, Berlin
26 - 28 October

in-cosmetics Asia 2022

BITEC Bangkok, Thailand
1 - 3 November 2022

Plastic Waste Free World Europe 2022

Koelnmesse, Cologne, Germany
09-10 Nov 2022

The Greener Manufacturing Show Europe 2022

Koelnmesse, Cologne, Germany
09-10 Nov 2022

Access the latest issue of Personal Care Magazine on your mobile device together with an archive of back issues.

Download the FREE Personal Care Magazine app from your device's App store

Step Communications Ltd, Step House, North Farm Road, Tunbridge Wells, Kent TN2 3DR
Tel: 01892 779999 Fax: 01892 616177
www.step-communications.com
© 2022 Step Communications Ltd. Registered in England. Registration Number 3893025