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 popular synthetic surfactant used as an emulsifier, cleansing agent, and foam booster in many hair products. It is favored by formulating chemists, as it is stable at a wide range of pH values and is compatible with many ingredients, including all of the usual surfactants.ake-home message. With their similar names, it can be confusing as to what the roles of betaine and cocamidopropyl betaine are in shampoos and conditioners. Since they are structurally very different, each one imparts unique properties to products in which they are present.