V Congress of the Portuguese Society of Cosmetological Sciences - Proceedings

The document summarizes findings from the V Congress of the Portuguese Society of Cosmetological Sciences, highlighting advancements in cosmetology and dermatology. Key points include the benefits of lipid nanoparticles in cosmetic formulations for skin hydration and barrier function, the classification challenges of cosmeceuticals and bio-products, and the potential of ultradeformable vesicles for dermal therapies. It also covers the encapsulation of solar filters for photoprotection, the role of hair follicle quality in transplants, and the use of ionic liquids and liposomal carriers for drug solubility and stability. Additionally, it presents studies on skin aging, innovative sunscreen formulations, and the safety and efficacy of novel topical formulations. One study involving 53 volunteers demonstrated the non-irritant and hydrating effects of Pickering emulsions, while another with 12 volunteers showed the biocompatibility and antioxidant activity of tea-containing emulsions. Lastly, a study with 30 volunteers found that creams with Solid Lipid Nanoparticles (SLN) and Nanostructured Lipid Carriers (NLC) improved skin hydration and reduced Transepidermal Water Loss (TEWL).