Journal
MOLECULES
Volume 26, Issue 13, Pages -Publisher
MDPI
DOI: 10.3390/molecules26133781
Keywords
cosmeceuticals; pollution; phytochemicals; herbs
Funding
- USDA NIFA Hatch Project [02689, 02669]
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This study demonstrates the efficacy of RSP gel in reducing pollution-induced skin inflammation, lowering levels of harmful protein adducts and active metalloproteinase, as well as limiting oxidative damage. The topical application of spirulina-rosemary gel proves to be a promising approach in preventing pollution-induced skin aging and damage.
The present study investigated the effect of spray-dried algae-rosemary particles against pollution-induced damage using ex-vivo human biopsies exposed to diesel engine exhaust (DEE). For this, the complexation of hydroalcoholic rosemary extract with Chlorella (RCH) and Spirulina (RSP) protein powders was conducted. The process efficiency and concentration of rosmarinic acid (RA), carnosic acid (CA), and carnosol (CR) phenolic compounds of both products were compared. The RSP spray-dried production was more efficient, and RSP particles presented higher CR and CA and similar RA concentrations. Therefore, spray-dried RSP particles were prioritized for the preparation of a gel formulation that was investigated for its ability to mitigate pollution-induced skin oxinflammatory responses. Taken altogether, our ex-vivo data clearly demonstrated the ability of RSP gel to prevent an oxinflammatory phenomenon in cutaneous tissue by decreasing the levels of 4-hydroxynonenal protein adducts (4HNE-PA) and active matrix metalloproteinase-9 (MMP-9) as well as by limiting the loss of filaggrin induced by DEE exposure. Our results suggest that the topical application of spirulina-rosemary gel is a good approach to prevent pollution-induced skin aging/damage.
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