Smart Skin Care: Common skin care ingredients

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Common skin care ingredients -- H

Homosalate: UV radiation blocker used in sunscreens (see homosalate fact-sheet)

Hyaluronic Acid: also referred to as a "cyclic acid"; an effective humectant/moisturizing agent.

Hydroquinone: skin pigmentation lightening agent; a maximum of 2% is sold over the counter; higher concentrations available by prescription.

To view the ingredient listings starting with a particular letter, click below:

If you cannot find something in our glossary or if you require more detailed information on individual ingredients, we recommend an in-depth reference Milady's Skin Care and Cosmetic Ingredients Dictionary.