Hydroxypropylmethylcellulose (HPMC) is a modified cellulose polymer. It is an off-white powdered substance with a variety of physical and chemical properties. Hydroxypropylmethylcellulose can be used in different industries and can also replace gluten and gelatine in vegan products.
Boric acid, with the chemical formula H₃BO₃, is a white powdery crystal or a scaly shiny crystal with a triclinic axis. It feels slippery and has no taste. It is soluble in water, alcohol, glycerin, ether and essential oils, and the aqueous solution is weakly acidic.