Cell-Communicating Ingredients

Pentapeptides are a type of peptide where the peptide has five ("penta") amino acids. There are dozens of pentapeptides used in cosmetic products, with some having more research than others, though most have at least some research from the company that developed and sells the peptide (or peptide blend) to cosmetics companies. Examples of pentapeptides include myristoyl pentapeptide-10 and acetyl pentapeptide-1. Such peptides are theorized to function as cell-communicating ingredients, though this assumes they're formulated in a way that they can actually reach the target areas of cells intact, which is open to debate. Still, pentapeptides likely help boost skin's moisture content and they're not harmful ingredients.

See palmitoyl pentapeptide-3 , peptides

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About the Experts

Paula Begoun is the best-selling author of 20 books on skin care and makeup. She is known worldwide as the Cosmetics Cop and creator of Paula's Choice. Paula's expertise has led to hundreds of appearances on national and international television including:

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The Paula's Choice Research Team is dedicated to busting beauty myths and helping you solve your skincare frustrations with research-supported expert advice—so you'll have the facts you need to take the best possible care of your skin.

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