| http://www.w3.org/ns/prov#value | - Examples of the substances which are generally used as a humectant include organic acid salts, polyhydric alcohols and water-soluble polymers which are liquids at ordinary temperature or are water-soluble and which are able to absorb moisture or have a function of absorbing moisture or water vapor in gas phases, and specific examples thereof include amino acids called NMF (natural moisture retenti
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