The invention relates to freeze-dried molded articles containing magnesium ascorbyl phosphate and alginate as well as optionally one or more active substances and/or auxiliary substances. Furthermore, the invention relates to methods for manufacturing these freeze-dried molded articles, the combination of such freeze-dried molded articles in kit-of-parts arrangements together with aqueous solutions, as well as the use of the freeze-dried molded articles and the kit-of-parts combinations for pharmaceutical and cosmetic application.