The aim of this research is the determination of the appropriate conditions
for extracting collagen by acidic method from remnants of skins of sheep, cows,
and chickens. The results showed that acetic acid is the best among the various
organic acids, for extracting collagen of these skins during 48 hours, at
concentration of 0.5 M and the ratio, acidic: skin (6:1).
Elastin and collagen loss from the dermal layer is essential cause for wrinkles in
the face. Dermal fillers is the solution for this problem and this study compared clinical improvement
degree and the duration of correction between hyaluronic acid (Matrigel) versus bovine collagen (Zyplast)
for the correction of nasolabial fold.
مساهمة في تحسين ثباتية فيتامين C في المستحضرات الجلدية: قمنا في هذا البحث بدراسة الثباتية الكيميائية للفيتامين C أو حمض الأسكوربيك في مستحضرات جلدية موضعية بتراكيز 2%
