Pentylene glycol is typically used within a product to thicken it. It also adds a smooth, soft, and moisturizing feel to the product. It is naturally found in plants such as sugar beets.

The hydrophilic trait of Pentylene Glycol makes it a humectant. As a humectant, Pentylene Glycol helps draw moisture from the air to your skin. This can help keep your skin hydrated.

This ingredient is the potassium salt of coconut acid. Coconut acid is created by mixing fatty acids from coconut oil.

It is an emulsifier, surfactant, and cleanser. According to a manufacturer, it contains glycerin.

Potassium Cocoyl Glycinate is an amino acid-based surfactant and cleaning agent. This ingredient can be derived from animals or plants. It may also be synthetically created from fatty acids of the coconut and glycine.

Potassium Cocoyl Glycinate is a gentle surfactant. Surfactants help gather the dirt, oil, and other pollutants from your skin to be rinsed away. It is a mild cleanser and naturally produces foam.

Propanediol is an all-star ingredient. It softens, hydrates, and smooths the skin. 

It’s often used to:

Trehalose is a disaccharide made of two glucose molecules (glucose is sugar!). Trehalose is used to help moisturize skin. It also has antioxidant properties.

As a humectant, trehalose helps draw moisture from the air to your skin. This helps keep your skin hydrated.

Water. It's the most common cosmetic ingredient of all. You'll usually see it at the top of ingredient lists, meaning that it makes up the largest part of the product.

So why is it so popular? Water most often acts as a solvent - this means that it helps dissolve other ingredients into the formulation.