Hydroxypropyl Methylcellulose is a synthetic polymer that is quite popular in cosmetics and personal care products. It is a highly versatile ingredient that serves as a thickener, emulsifier, and stabilizer in formulations. Hydroxypropyl Methylcellulose can help in improving the texture and flow properties of products like lotions, creams and gels. It also controls the release of active ingredients and acts as a film-forming agent, protecting the skin from environmental stressors.Â