17 research outputs found
A New Protocol to Evaluate Waterproof Effect of LipGloss
A new method to evaluate lip gloss and lipstick waterproof level according to the
COLIPA Guidelines for Evaluating Sunscreen Product Water Resistance in 2006 is proposed,
moreover the changes in color (L* value) by Skin Colorimeter® CL 400 Courage & Kazama
was measured. Tests were carried out on 20 volunteers validating the efficiency of the used
method by comparing non-waterproof lip gloss/lipstick and waterproof product results.
The results indicated that the lip gloss/lipstick were waterproofs when their mean % WPR
was lower than 50% and they were removed after two successive immersions in water for
20 minutes at 29°±2°C. Methods used to evaluate lip gloss and lipstick waterproof level has
proved effective for assessing the desired goals
Dosage of Bioactive Molecules in the Nutricosmeceutical Helix aspersa Muller Mucus and Formulation of New Cosmetic Cream with Moisturizing Effect
The present study was carried out to provide the allantoin and glycolic acid contents in the Helix aspersa Muller mucus of common Campania land (Italy) by using chromatographic method. The study continued with the formulation of a snail mucus cosmetic cream, whose ability to hydrate the skin was evaluated comparing the skin hydration and trans-epidermal water loss (TEWL) effects of a stable cosmetic preparation. The skin TEWL and skin hydration effects were measured by TEWAMETER and corneometer probe, respectively, at the beginning, after 1 hour, and 24 hours
Aloe barbadensis: A Plant of Nutricosmetic Interest
Aloe barbadensis Miller (Aloe Vera Linne) products have long been employed in health foods and for medical purposes. It has anti-inflammatory,
antifungal, antioxidant properties, which indicates excellent potential in antiaging cosmetic and skin protection
products. The objective of this study is to evaluate the antiaging efficacy of dermocosmetic formulations containing A. barbadensis
extract on young and mature skin using biophysical and skin imaging techniques. Twenty healthy adult volunteers participated in
the study, aged between 20 and 65. The cream formulation, with 10% (w/w) of A. barbadensis extract, and placebo, were applied to
the face of the volunteers. The effects were evaluated in terms of skin hydration and barrier effect by the measurement of transepidermal
water loss (TEWL), derma firmness, and elasticity. The formulation containing A. barbadensis extract significantly improves
water contained in the stratum corneum, firmness, elasticity of the skin, and decreased TEWL
Comparison between Mid-Infrared (ATR-FTIR) Spectroscopy and Official Analysis Methods for Determination of the Concentrations of Alcohol, SO2, and Total Acids in Wine
The determination of alcohol, SO2, and total acids in wine through conventional laboratory techniques have some limitations related to the amount of the samples, analytical preparation of laboratory staff, and time to carry out the analysis. In recent years, spectroscopic and chromato- graphic methods have been proposed to determinate simultaneously multiple analytical parame- ters. The new methods claim the speed of analysis and easy execution. However, they need a vali- dation process that guarantees the reliability of the results to be used in official determinations. This study aimed to evaluate the usefulness of FT-infrared reflectance (FT-IR) to quantify total acid, al- cohol, and SO2 concentration in the wines. For this purpose, 156 DOC Italian wines were tested with IR technology, and results were compared to those obtained by official analysis methods. The com- parison was performed using two non-parametric statistical methods: the Bland & Altman test and Passing & Bablok regression. Our results showed that the spectrophotometric methods make errors due to interfering contaminants in the sample that can be corrected by blank determination. There- fore, the spectrophotometric methods that use the infrared region of the electromagnetic spectrum can be used by the wine industry and regulators for the wine routine as an alternative to official methodologies
Tracking Down of a Selected Panel of Parabens: A Validated Method to Evaluate Their Occurrence in Skin Layers
A method was set up and validated to identify and quantify seven parabens in each of the three skin layers, i.e., Stratum Corneum, Epidermis, and Dermis, because, even if only some analogues are legally allowed in Europe, forbidden parabens are also detected in many personal care products and therefore can be absorbed by the skin. A solid/liquid extraction followed by a gradient elution chromatographic separation method was performed and validated according to European guidelines. Our validated method afforded the detection of all seven parabens with limit of detection values ranging from 0.026 to 0.090 μg mL−1 and recoveries ranging from 61.80 to 105.73 μg mL−1 at high and low concentration values (50.0–5.0 μg mL−1), respectively. The proposed method can help assess paraben’s skin bioaccumulation since people are repeatedly exposed to consumer goods containing parabens in their daily routine, posing a chronic risk to human health
An Extract from Ficus carica Cell Cultures Works as an Anti-Stress Ingredient for the Skin
Psychological stress activates catecholamine production, determines oxidation processes,
and alters the lipid barrier functions in the skin. Scientific evidence associated with the detoxifying
effect of fruits and vegetables, the growing awareness of the long-term issues related to the use of
chemical-filled cosmetics, the aging of the population, and the increase in living standards are the
factors responsible for the growth of food-derived ingredients in the cosmetics market. A Ficus carica
cell suspension culture extract (FcHEx) was tested in vitro (on keratinocytes cells) and in vivo to
evaluate its ability to manage the stress-hormone-induced damage in skin. The FcHEx reduced the
epinephrine (−43% and −24% at the concentrations of 0.002% and 0.006%, respectively), interleukin
6 (−38% and −36% at the concentrations of 0.002% and 0.006%, respectively), lipid peroxide (−25%),
and protein carbonylation (−50%) productions; FcHEx also induced ceramide synthesis (+150%)
and ameliorated the lipid barrier performance. The in vivo experiments confirmed the in vitro test
results. Transepidermal water loss (TEWL; −12.2%), sebum flow (−46.6% after two weeks and
−73.8% after four weeks; on the forehead −56.4% after two weeks and −80.1% after four weeks),
and skin lightness (+1.9% after two weeks and +2.7% after four weeks) defined the extract’s effects
on the skin barrier. The extract of the Ficus carica cell suspension cultures reduced the transepidermal
water loss, the sebum production, the desquamation, and facial skin turning to a pale color from
acute stress, suggesting its role as an ingredient to fight the signs of psychological stress in the skin
Monitoring of Pollutants Content in Bottled and Tap Drinking Water in Italy
The concentration levels of thirteen organic pollutants and selected heavy metals were investigated in 40 plastics bottled and tap water samples. Some of the selected contaminants have an ascertained or suspected endocrine disrupting activity, such as Bisphenol A (BPA) and its analogs, and Bis 2-ethylhexyl phthalate (DEHP), which are used by industries as plasticizers. The most frequently detected pollutants were Bisphenol AF (BPAF) (detection frequency (DF) = 67.5%, mean 387.21 ng L−1), DEHP (DF = 62.5%, mean 46.19 µg L−1) and BPA (DF = 60.0%, mean 458.57 ng L−1), with higher concentration levels found in tap waters. Furthermore, a possible level of exposure to thirteen pollutants via drinking water intake was calculated. Our findings show that, even though the occurrence of contaminants and heavy metals in drinking waters does not pose an immediate, acute health risk for the population, their levels should be constantly monitored and “hard-wired” into everyday practice. Indeed, the health impact to the continuous and simultaneous intake of a huge variety of xenobiotics from various sources by humans is complex and still not fully understood
Dermocosmetic evaluation of a nutricosmetic formulation based on Curcuma
Endogenous and exogenous factors can alter the skin layer and appearance, determining skin aging. The extracts and isolated molecules from food matrixes can be used to
formulate “healthy” antiaging cosmetics. Two different cosmetic approaches can be
used to achieve the antiaging effect. It is possible to use topical products based on
food extract (cosmeceutical approach) or take a food supplement and apply a topical
cosmetic product based on food extract on the surface to be treated (nutricosmetic
approach). This work evaluated in vivo the antiaging potential of a nutricosmetic formulation (cream + food supplement) and a cosmeceutical cream based on Curcuma.
The choice of the commercial Curcuma extract to be used for experimental purposes
was based on the curcuminoid content determined by an HPLC test. Curcuminoids
are the bioactive compounds responsible for Curcuma's antioxidant and antiinflammatory properties. Their levels in Curcuma extracts vary according to the storage condition, variety, and pedoclimatic cultivation conditions. The Tewameter® TM300 was
used to evaluate the Trans Epidermal Water Loss (TEWL), the Corneometer® CM
825 to determine the moisturizing effect, the Cutometer® to estimate the skin firmness and elasticity, the Dermascan to assess the collagen index, and the Visioface®
1000D to evaluate the wrinkles. The nutricosmetic product showed potential as moisturizing, anti-age, and anti-wrinkle action better than the cosmeceutical product alon