Herbafriol Mucus is a food supplement with N-acetylcysteine, it is from thyme leaves, it is from primrose root, Vitamin C and Vitamin B2. Contributes to the defenses and well-being of the respiratory tract. Thyme helps with expectoration and calms a dry cough and contributes to a calming and pleasant effect on the throat, pharynx and vocal cords and to the body's natural defenses. Cowslip promotes the health of the upper respiratory tract. Vitamin C contributes to the normal functioning of the immune system and to protect cells from oxidative damage. Vitamin B2 contributes to the maintenance of mucous membranes under normal conditions. How to use Take 1 sachet a day, dissolved in water.