Because cellulose is very crystalline, HPC must have an MS about 4 in order to reach a good solubility in water.

HPC has a combination of hydrophobic and hydrophilic groups, so it has a lower critical solution temperature (LCST) at 45 °C.

[2][3][4] HPC is used as a thickener, a low level binder and as an emulsion stabiliser with E number E463.

[6] HPC is used as a thickener, emulsifier, and stabilizer in cosmetic formulations such as shampoos, conditioners, and lotions.

Cellugel is described as "A safe, penetrating consolidant for leather book covers affected by red rot" and is produced by Preservation Solutions.