Ingredient Dictionary

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adenine

Component of DNA that carries genetic information to the cell. Read More »

Categories: Skin-Identical/Repairing Ingredients

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amino acid

Fundamental constituents of all proteins found in the body, such as: alanine, arginine, asparagine,... Read More »

Categories: Antioxidants, Skin-Identical/Repairing Ingredients

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aquaporins

Group of 13 different cellular membrane proteins that form water channels in living things to... Read More »

Categories: Skin-Identical/Repairing Ingredients

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aspartic acid

See amino acid

Categories: Antioxidants, Skin-Identical/Repairing Ingredients

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beta-sitosterol

Plant extract, similar to cholesterol, that can have antimicrobial properties (Source: Journal of... Read More »

Categories: Anti-Irritants, Plant Extracts, Skin-Identical/Repairing Ingredients

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Butyrospermum parkii

See shea butter

Categories: Plant Extracts, Emollients, Skin-Identical/Repairing Ingredients

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Buxus chinensis

See jojoba oil

Categories: Skin-Identical/Repairing Ingredients, Emollients, Plant Extracts

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canola oil

Plant lipid that has barrier-repair and anti-inflammatory properties (Source: British Journal of... Read More »

Categories: Plant Extracts, Anti-Irritants, Skin-Identical/Repairing Ingredients

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carrot oil

Emollient plant oil similar to other nonfragrant plant oils. Read More »

Categories: Plant Extracts, Skin-Identical/Repairing Ingredients, Emollients

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ceramide 1

See ceramides

Categories: Skin-Identical/Repairing Ingredients

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ceramide 2

See ceramides

Categories: Skin-Identical/Repairing Ingredients

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ceramide 3

See ceramides

Categories: Skin-Identical/Repairing Ingredients

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ceramide 6-II

See ceramides

Categories: Skin-Identical/Repairing Ingredients

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ceramides

Naturally occurring skin lipids (fats) that are major structural components of the skin’s outer... Read More »

Categories: Skin-Identical/Repairing Ingredients

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cetearyl octanoate

See fatty acid

Categories: Thickeners/Emulsifiers, Skin-Identical/Repairing Ingredients, Emollients

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cholesterol

The barrier function of skin depends on the stratum corneum extracellular lipid matrix, which... Read More »

Categories: Emollients, Skin-Identical/Repairing Ingredients

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chondroitin sulfate

See glycosaminoglycans

Categories: Skin-Identical/Repairing Ingredients

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cysteine

See amino acid

Categories: Skin-Identical/Repairing Ingredients

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cystine

See amino acid

Categories: Skin-Identical/Repairing Ingredients

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decylene glycol

A synthetic glycol that functions as a skin-conditioning agent. Read More »

Categories: Skin-Identical/Repairing Ingredients, Slip Agents

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dextran

Polysaccharide that has water-binding properties for skin. Read More »

Categories: Skin-Identical/Repairing Ingredients

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elastin

Major component of skin that gives it flexibility. Sun damage causes elastin in skin to... Read More »

Categories: Skin-Identical/Repairing Ingredients

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fatty acid

Substance typically found in plant and animal lipids (fat). Fatty acids include compounds such as... Read More »

Categories: Thickeners/Emulsifiers, Emollients, Skin-Identical/Repairing Ingredients

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fibronectin

Type of protein found in the skin’s intercellular matrix, similar to collagen and elastin.... Read More »

Categories: Skin-Identical/Repairing Ingredients

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fructose

Often called fruit sugar, fructose is a type of sugar composed of glucose. It has water-binding... Read More »

Categories: Skin-Identical/Repairing Ingredients

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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 helping you find the absolute best products for your skin, using research-based criteria to review beauty products from an honest, balanced perspective. Each member of the team was personally trained by Paula herself.

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