La vitamine D aide à hydrater la peau

[Nutrimuscle-Conseils]

Assessing the Relationship between Vitamin D3 and Stratum Corneum Hydration for the Treatment of Xerotic Skin
Nutrients 2012, 4(9), 1213-1218 Meghan Russellemail

Vitamin D3 has been called the “sunshine” vitamin since the formation of vitamin D is mediated by exposure to sunlight. Vitamin D3 is linked to many health benefits, however serum levels of vitamin D3 have been decreasing over the last few decades and the lower levels of vitamin D3 may have consequences on normal physiology. We investigated the association between serum 25-hydroxyvitamin D (25(OH)D) levels and stratum corneum conductance as well as the effect of topical application of cholecalciferol (vitamin D3) on dry skin. Eighty three subjects were recruited and blood serum levels and skin conductance measurements were taken after a one week washout. A correlation was observed between vitamin D levels and skin moisture content, individuals with lower levels of vitamin D had lower average skin moisture. Subsequently, a 3-week split leg, randomized, vehicle controlled clinical study was conducted on a subset of 61 of the above individuals who were identified with non-sufficient vitamin D serum levels. Topical supplementation with cholecalciferol significantly increased measurements of skin moisturization and resulted in improvements in subjective clinical grading of dry skin. Taken together our finding suggest a relationship between serum vitamin D3 (25(OH)D) levels and hydration of the stratum corneum and further demonstrate the skin moisture benefit from topical application of vitamin D3.

[Nutrimuscle-Conseils]

Effect of intake of selected nutrients on skin firmness and elasticity in women
Aleksandra Podgorska Front. Nutr., 11 November 2024

Introduction: The proper functioning of the skin is influenced by a proper diet. The purpose of this study was to determine the effect of selected nutrients on selected skin parameters.

Methods: The study group included 59 women, who were divided into two age groups (under and over 40  years old). A three-day 24-h dietary interview was conducted among the study women and skin parameters were assessed using the Courage + Khazaka method.

Results: The results showed LA, ALA, Dietary fiber, Na, K, Mg, Zn, Cu, Vitamin E, Thiamine, Riboflavin, Folates, Vitamins B6, B12 and C correlated with skin elasticity. On the other hand, skin elasticity is influenced exclusively by vitamin D acted on skin firmness.

Conclusion: The results obtained indicate that a diet rich in appropriate nutrients has a positive effect on the proper maintenance of important skin parameters.

[Nutrimuscle-Diététique]

Traduction de l'étude

Effet de l'apport de nutriments sélectionnés sur la fermeté et l'élasticité de la peau chez les femmes
Aleksandra Podgorska Front. Nutr., 11 novembre 2024

Introduction : Le bon fonctionnement de la peau est influencé par une alimentation appropriée. Le but de cette étude était de déterminer l'effet de nutriments sélectionnés sur certains paramètres cutanés.

Méthodes : Le groupe d'étude comprenait 59 femmes, qui ont été divisées en deux groupes d'âge (moins et plus de 40 ans). Un entretien diététique de 24 heures sur trois jours a été mené auprès des femmes de l'étude et les paramètres cutanés ont été évalués à l'aide de la méthode Courage + Khazaka.

Résultats : Les résultats ont montré que les LA, ALA, fibres alimentaires, Na, K, Mg, Zn, Cu, vitamine E, thiamine, riboflavine, folates, vitamines B6, B12 et C étaient corrélés à l'élasticité de la peau. En revanche, l'élasticité de la peau est influencée exclusivement par la vitamine D agissant sur la fermeté de la peau.

Conclusion : Les résultats obtenus indiquent qu’une alimentation riche en nutriments appropriés a un effet positif sur le bon maintien des paramètres cutanés importants.