Hydroxypropyl Cyclodextrin- A plant- derived or synthetic carbohydrate that functions as a chelating agent.
Hydroxypropyl Starch Phosphate- A plant-based or synthetic starch ingredient that functions as a thickener or bulking agent in cosmetics.
Hyssop- Fragrant plant extract that may have some beneficial properties.
Hydroxyethylpiperazine Ethane Sulfonic Acid- Also known by the acronym HEPES, hydroxyethylpiperazine ethane sulfonic acid is a buffering ingredient.
Hydroxyethyl Acrylate/Sodium Acryloyl Dimethyl Taurate Copolymer- A polymer that functions as a stabilizer, thickening agent, and opacifying agent.
Hydrolyzed Vegetable Protein- Composed of various protein substances derived from vegetables and broken down by water.
Hydrolyzed Wheat Protein- Protein fraction from wheat that has been hydrolyzed.
Hydrophilic- Attracting or associating with water.