A dose of 0.5 milligrams of melatonin has been taken under the tongue for six days. For seizure disorders, doses of melatonin taken by mouth were 3-10 milligrams daily for 2-4 weeks to three months. For sleep (general), doses of melatonin taken by mouth were 0.3-10 milligrams.
The degradation of the synthetic, amphoteric surfactant, cocamidopropyl betaine (CAPB) and its toxicity to the marine macroalga, Ulva lactuca, has been evaluated using several different physiological test end-points over different periods of exposure up to 120 h.ell membrane damage, estimated from measurements of ion leakage, was detected only at a concentration of 40 mg l(-1) after 48 h of exposure to CAPB but by 120 h damage was evident at all measured concentrations above 10 mg l(-1).
Cocamidopropyl betaine is a surfactant that comes from coconut oil, and it's a common ingredient in many liquid skin cleansers [source: Reitschal ]. Surfactants are detergents that allow water to wash away the oil and dirt from your skin by decreasing the surface tension of water and making it easier to wet your face.f using cosmetics that contain cocamidopropyl betaine cause your skin to redden, itch or flake, talk to a dermatologist -- the surfactant can cause contact dermatitis [source: Reitschal ]. Understanding the functions of skin cleanser ingredients can help you make informed product choices.