Ingredient Dictionary

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GLA

See gamma linolenic acid (GLA)

Categories: Antioxidants, Emollients, Cell-Communicating Ingredients

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glycoproteins

Cell-to-cell communicating ingredients created when a protein links with a carbohydrate.... Read More »

Categories: Cell-Communicating Ingredients

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hepatocyte growth factor (HGF)

Stimulates division in cells lining the liver, skin cells, and cells that produce skin color. Read More »

Categories: Cell-Communicating Ingredients

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hibiscus

Fragrant plant Read More »

Categories: Plant Extracts, Antioxidants, Cell-Communicating Ingredients

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human growth factor

The topic of human growth factor (HGF) is exceedingly complicated. The physiological intricacies of... Read More »

Categories: Cell-Communicating Ingredients

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hyaluronic acid

Component of skin tissue that is used in skin-care products as a good skin-identical ingredient.... Read More »

Categories: Skin-Identical/Repairing Ingredients, Cell-Communicating Ingredients

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hydrogenated lecithin

See lecithin

Categories: Cell-Communicating Ingredients, Emollients

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hydroquinone

Strong inhibitor of melanin production that has long been established as the most effective... Read More »

Categories: Prescription Drugs, Cell-Communicating Ingredients, Antioxidants

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insulinlike growth factor (IGF)

Stimulates fat cells and connective tissue cells. Read More »

Categories: Cell-Communicating Ingredients

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interleukin (IL)

Stimulates growth of white blood cells. Read More »

Categories: Cell-Communicating Ingredients

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isotretinoin

Anti-acne drug that’s derived from vitamin A. This drug works by essentially stopping oil... Read More »

Categories: Prescription Drugs, Cell-Communicating Ingredients, Vitamins

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kinetin

Trade name N6-furfuryladenine, a plant hormone responsible for cell division. As a “natural”... Read More »

Categories: Plant Extracts, Cell-Communicating Ingredients

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lady's thistle extract

Extract for which there is a great deal of research showing it has many medical health applications... Read More »

Categories: Plant Extracts, Cell-Communicating Ingredients, Antioxidants

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linoleic acid

Unsaturated fatty acid used as an emollient and thickening agent in cosmetics. There is some... Read More »

Categories: Emollients, Anti-Irritants, Antioxidants, Cell-Communicating Ingredients

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linolenic acid

Linolenic acid is a naturally-occurring, colorless polyunsaturated fatty acid liquid that functions as a skin-conditioning agent and cell-communicating ingredient... Read More »

Categories: Plant Extracts, Cell-Communicating Ingredients

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N6-furfuryladenine

Technical name for kinetin. Read More »

Categories: Plant Extracts, Cell-Communicating Ingredients

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niacin

See niacinamide

Categories: Cell-Communicating Ingredients, Vitamins

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niacinamide

Also known as vitamin B3 and nicotinic acid, niacinamide is a potent cell-communicating ingredient... Read More »

Categories: Antioxidants, Vitamins, Anti-Irritants, Cell-Communicating Ingredients

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nicotinamide

See niacinamide

Categories: Cell-Communicating Ingredients, Vitamins

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nicotinic acid

See niacinamide

Categories: Cell-Communicating Ingredients, Vitamins

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palmitoyl hexapeptide-12

See palmitoyl oligopeptide

Categories: Cell-Communicating Ingredients

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palmitoyl oligopeptide

A blend of palmitic acid (a fatty acid) with several amino acids, including alanine, arginine,... Read More »

Categories: Cell-Communicating Ingredients

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palmitoyl pentapeptide 3

Trade name Matrixyl, a fatty acid mixed with amino acids. The only research showing this has any... Read More »

Categories: Cell-Communicating Ingredients

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palmitoyl tetrapeptide-7

A synthetic peptide whose trade name is Matrixyl 3000. It is believed to work by muting the effect... Read More »

Categories: Cell-Communicating Ingredients

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palmitoyl tripeptide-5

See cell-communicating ingredients , peptides

Categories: Cell-Communicating 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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