To evaluate allergic and irritative effects of 64 decorative cosmetic products, a study using patch test was conducted on 205 volunteers comprising of 78 persons having been in frequent contact or having been brought into contact (2 weeks previously) and 127 persons who had little or no contact with the tested products. Patch test on the back of volunteers were carried out for decorative cosmet…
Phenomenon related to skin aging among others are wrinkles, increase in dryness of the skin, decrease in skin flexibility, elasticity and smoothness of the skin. The skin's most important role is its function as a barrier to prevent water loss, electrolyte and skin component loss, as well as to prevent the absorption on injurious substances. Therefore, keeping the correct balance of water in th…
To evaluate the allergic and irritation effects of skin care cosmetic products, a patch test was carried out. The main problem of this study is that a large number of cosmetics are currently available in the market and that quite many consumers have complained about side effects the cosmetic, besides, some cosmetic producers claim their products to be hypo-allergenic without showing authentic d…