Development of sunscreen products containing passion fruit seed extract

Application of sunscreen is the most established method of protecting skin from premature aging and photoaging. In this study, the passion fruit seed extract, enriched with biologically beneficial phenolics, was formulated into sun-protective makeup product. The UVB protection of concealer mousse was found have twofold higher sun protection factor (SPF) than the liquid foundation (15.48 ± 1.60 and 5.88 ± 0.30, respectively). The SPF of concealer mousse as well as the liquid foundation containing 0.1% and 0.3% of the passion fruit seed extract were 18.75 ± 0.28, 18.99 ± 0.71 and 9.32 ± 0.88, 9.77 ± 1.37, respectively. Therefore, the concealers with a similar sun-protective efficacy (p>;0.05) were included for stability test accordingly. The sun-protective efficacy did not significantly shift (p>;0.05) because the 0.1% and 0.3% passion fruit extract concealers had SPF of 18.09 ± 1.48 and 18.60 ± 1.21. The concealers exhibited UVA photoprotection with a boot star rating of 4 and a critical wavelength wider than 370 nm. The safety of 0.1% passion fruit extract concealer mousse was assessed. It did not cause skin irritation when assessed in human volunteers. This sunscreen makeup product provides UVA and UVB protection and is therefore suitable for daily application

Development of sunscreen products containing passion fruit seed extract

Abstract Application of sunscreen is the most established method of protecting skin from premature aging and photoaging. In this study, the passion fruit seed extract, enriched with biologically beneficial phenolics, was formulated into sun-protective makeup product. The UVB protection of concealer mousse was found have twofold higher sun protection factor (SPF) than the liquid foundation (15.48 ± 1.60 and 5.88 ± 0.30, respectively). The SPF of concealer mousse as well as the liquid foundation containing 0.1% and 0.3% of the passion fruit seed extract were 18.75 ± 0.28, 18.99 ± 0.71 and 9.32 ± 0.88, 9.77 ± 1.37, respectively. Therefore, the concealers with a similar sun-protective efficacy (p>0.05) were included for stability test accordingly. The sun-protective efficacy did not significantly shift (p>0.05) because the 0.1% and 0.3% passion fruit extract concealers had SPF of 18.09 ± 1.48 and 18.60 ± 1.21. The concealers exhibited UVA photoprotection with a boot star rating of 4 and a critical wavelength wider than 370 nm. The safety of 0.1% passion fruit extract concealer mousse was assessed. It did not cause skin irritation when assessed in human volunteers. This sunscreen makeup product provides UVA and UVB protection and is therefore suitable for daily application

Formulation and development of a body gel scrub using Areca catechu L. seed extract and microbeads

The purpose of this study was to develop and evaluate an antioxidant body gel scrub formulation including Areca seed extract and Areca beads. The Areca seed ethanol extract had an IC50 of 183.30 µg/ml, a radical scavenging activity of 49.196%, and a total phenolic content of 21.21 ± 2.32 µg/ml. With a pH of 6.98 at 25 °C and a viscosity of 5,590.457 cP, the optimized formulation contained 1% w/w Areca seed extract, 5% w/w polyvinyl alcohol, 0.5% w/w Carbomer Ultrez 21, and 5% w/w Areca microbeads. The formulation had a radical scavenging efficiency of 68.66%. Stability tests were carried out under accelerated heating cooling conditions at 40 ± 2 °C, 75 % RH for 48 hours, followed by 4 °C for 48 hours each cycle for 24 days (6 cycles) and 30 days for 4 °C and 30 ± 2 °C, 75% RH, and no significant changes in physical or chemical properties were observed. This body gel scrub formulation shows potential for use in skincare applications due to its antioxidant activity and stability

FePt3 nanosuspension synthesized from different precursors – a morphological comparison by SAXS, DLS and TEM

Annealed iron-platinum (FePt) is ferromagnetic in a nanoscale regime which is necessary for energy and data storage, whereas the as-synthesized form of FePt-based nanoparticles exhibits superparamagnetism useful for biomedical applications. In this study, as-synthesized nanosuspensions from the reaction of Pt(acac)2 with Fe(acac)3 and Fe(hfac)3 are compared. X-ray diffraction (XRD) peaks for both samples are assigned to the FePt3 phase. As shown by transmission electron microscopy (TEM) and small angle X-ray scattering (SAXS), nanoparticles synthesized by using Fe(acac)3 have a smaller average diameter, but larger polydispersity index and particle agglomerations. On the other hand, the nanoparticles synthesized by using Fe(hfac)3 can self-assemble into a longer range of patterned monolayer. Dynamic light scattering (DLS), measuring the size of cluster of nanoparticles as well as oleic acid and oleylamine at their surface, confirms that larger agglomerations in the sample were synthesized by using Fe(acac)3. In addition to the size distribution, magnetic properties were influenced by the composition of these nanoparticles