Study summary · research use only
Developing Plant Exosomes as an Advanced Delivery System for Cosmetic Peptide
Plain-language summary
Paraphrased from the published abstract below — not a verdict on whether anything works.
This study developed a plant-exosome (pExo) delivery system called NanoGlow to improve skin penetration of cosmetic peptides such as acetyl hexapeptide-8, using in vitro cellular absorption and skin penetration models plus in vivo tissue slice studies (species not specified). The authors report pExo carriers improved peptide penetration into the skin compared to free peptides in the in vitro models, and that pExo carriers delivered acetyl hexapeptide-8 to the skin's dermis more than free peptides in the tissue slice studies. The authors describe the NanoGlow approach, which combines chemical activation and physical proencapsulation, as suitable for large-scale production, and report their cosmetic skincare effect analysis indicated pExo-loaded peptides showed greater effects than free peptides.
Abstract
Peptides are a promising skincare ingredient, but due to their inherent instability and the barrier function of the skin's surface, they often have limited skin absorption and penetration, which can significantly hinder their skincare benefits. To address this, a novel technique called NanoGlow has been introduced for encapsulating peptide-based cosmetic raw materials into engineered nanosized plant-derived exosomes (pExo) to achieve the goal of a healthier and more radiant skin state. In this approach, pExo served as carriers for cosmetic peptides across the intact skin barrier, enhancing their biological effectiveness in skin beauty. The NanoGlow strategy combines chemical activation and physical proencapsulation, boasting a high success rate and straightforward and stable operation, making it suitable for large-scale production. Comprehensive analysis using in vitro cellular absorption and skin penetration models has demonstrated that the nanosized pExo carriers significantly improve peptide penetration into the skin compared to free peptides. Furthermore, in vivo tissue slice studies have shown that pExo carriers efficiently deliver acetyl hexapeptide-8 to the skin's dermis, surpassing the performance of free peptides. Cosmetic skincare effect analysis has also indicated that pExo-loaded cosmetic peptides deliver superior results. Therefore, the NanoGlow technique harnesses the natural size and properties of pExo to maximize the bioavailability of cosmetic peptides, holding great promise for developing advanced peptide delivery systems in both the cosmetic and medical drug industries.
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