Grape seed extract for skincare
Studying the benefits of an extract from Sauvignon Blanc grape seeds has revealed both sun protection and anti-ageing properties.
The extract is a by-product from wine production, manufactured by Marlborough-based company New Zealand Extracts Ltd., who commissioned AgResearch to undertake the studies.
The AgResearch team initially demonstrated in a clinical trial that the Oxifend® grape seed extract can provide anti-ageing benefits to the skin, and more recent investigations have shown a protective effect at the protein level, mitigating oxidative damage.
The study used technologies developed for mapping UV damage in wool keratins and meat collagens to evaluate the protective effect on skin keratins and collagens.
Damage at the molecular level was reduced when the extract was applied to the skin. Scientists were able to look at oxidative damage across the skin proteins including amino acids that are particularly sensitive to UV damage. Preliminary results indicated a significant reduction in the level of oxidation in the skin proteins.
New Zealand Extracts use a unique water-based extraction process that maximises the beneficial properties of the grape seed ensuring no chemicals or other agents affect the properties of the extract. They are expecting considerable interest from skincare companies.