Dr. Barbara Sturm Hyaluronic Serum at Nordstrom, Size 1 Oz

Water is a common solvent used in cosmetic formulations. It helps dissolve other ingredients and provides a base for the serum. It does not have any direct benefits or risks associated with its use in skincare.

Butylene Glycol is a common humectant that helps retain moisture in the skin. It also acts as a solvent and can improve the texture of the product. While generally safe, it can cause irritation in sensitive individuals.

This ingredient is a ferment extract that can provide antioxidant and soothing properties to the skin. It may help in reducing inflammation and improving skin barrier function. Fermented ingredients are often praised for their enhanced bioavailability.

Phenoxyethanol is a preservative used to prevent microbial growth in cosmetics. It is considered safer than parabens but can cause irritation and allergic reactions in some individuals. It is generally used in low concentrations to minimize risks.

Sodium Hyaluronate is a form of hyaluronic acid known for its excellent moisture-retaining properties. It can hold up to 1000 times its weight in water, making it a powerful hydrating agent. It helps plump the skin and reduce the appearance of fine lines.

Ethylhexylglycerin is used as a skin conditioning agent and preservative enhancer. It is generally considered safe and can help improve the efficacy of other preservatives. It has a low risk of causing irritation.

Potassium is often used in skincare formulations as a pH adjuster. It helps maintain the stability and effectiveness of the product. It does not have direct skin benefits or risks.