Research

Effects of a nutritional supplement containing collagen peptides on skin elasticity, hydration and wrinkles

Effects of a nutritional supplement containing collagen peptides on skin elasticity, hydration and wrinkles

Research Summary Context: Many people around the world strive to achieve younger-looking skin, often relying on promises made by topical treatments. Oral treatments for skin aging have typically been unsuccessful due to their constituents being broken down by acid and enzymes in the gut. However, several studies have shown that hydrolyzed collagen is absorbed in the gut and then delivered to the skin and joints through the bloodstream.Aims:The aim of this study was to determine whether an oral nutritional supplement drink containing hydrolyzed collagen and other specific ingredients, reported to have anti-aging properties, would have a positive effect on skin...

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Effectiveness of sunscreens and factors influencing sun protection: a review

Effectiveness of sunscreens and factors influencing sun protection: a review

Research Summary The effectiveness of sun protection depends directly on the photo-protective product employed, the way it is used, and the amount applied. Many studies report that sunscreens are often applied incorrectly, at amounts much lower than those recommended for the sun protection factor (SPF) specified on the label. When not used properly, the effectiveness of the product against sun exposure damage is significantly reduced. Currently, sunscreens are available in a variety of formulations and types, including stick (bar), aerosol, cream, lotion, oil, tanning formulations, and makeup. However, developing an effective, stable photo-protective formula that can be correctly applied regardless...

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Silicone Polymers in Skin Care

Silicone Polymers in Skin Care

Research Summary Silicone polymers have become increasingly important as ingredients in skin care products, with the trend accelerating over the last decade. While silicone compounds have existed since the 1860s, their increasing popularity in recent years is largely due to a better understanding of their unique functions. This enhanced understanding of the properties of silicone, combined with the growing ability of silicone chemists to modify these compounds, has led to more effective utilization of silicone materials in skin care formulations. Silicone polymers contribute to formulations by introducing a phase that is soluble neither in oil nor in water.These third-phase ingredients,...

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E¡ect of Long-term Use of Moisturizer on Skin Hydration, Barrier Function and Susceptibility to Irritants

E¡ect of Long-term Use of Moisturizer on Skin Hydration, Barrier Function and Susceptibility to Irritants

Research Summary Moisturizers are often used in the prevention and treatment of irritant contact dermatitis. The present study aimed to determine whether long-term daily use of a moisturizer on normal skin would affect skin barrier function, hydration state, or susceptibility to sodium lauryl sulphate.Healthy volunteers used a moisturizer on one forearm three times daily for four weeks, while the other forearm served as a control. Afterward, both forearms were challenged with a patch test of sodium lauryl sulphate. Skin barrier function was evaluated by measuring trans-epidermal water loss, and skin hydration was assessed by measuring electrical capacitance.Electrical capacitance significantly increased...

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