Ingredient Dictionary

Average

ginseng

Herb in the family Araliaceae, native to Asia. A small number of studies carried out on animals... Read More »

Categories: Plant Extracts, Cell-Communicating Ingredients

Best

GLA

See gamma linolenic acid (GLA)

Categories: Antioxidants, Emollients, Cell-Communicating Ingredients

Best

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

Good

hibiscus

Fragrant plant Read More »

Categories: Plant Extracts, Antioxidants, Cell-Communicating Ingredients

Average

human growth factor

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

Categories: Cell-Communicating Ingredients

Best

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

Average

insulinlike growth factor (IGF)

Stimulates fat cells and connective tissue cells. Read More »

Categories: Cell-Communicating Ingredients

Average

interleukin (IL)

Stimulates growth of white blood cells. Read More »

Categories: Cell-Communicating Ingredients

Best

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

Average

kinetin

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

Categories: Plant Extracts, Cell-Communicating Ingredients

Best

lady's thistle (milk 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

Best

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

Average

N6-furfuryladenine

Technical name for kinetin. Read More »

Categories: Plant Extracts, Cell-Communicating Ingredients

Best

niacin

See niacinamide

Categories: Cell-Communicating Ingredients, Vitamins

Best

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

Best

nicotinamide

See niacinamide

Categories: Cell-Communicating Ingredients, Vitamins

Best

nicotinic acid

See niacinamide

Categories: Cell-Communicating Ingredients, Vitamins

Best

palmitoyl hexapeptide-12

See palmitoyl oligopeptide

Categories: Cell-Communicating Ingredients

Best

palmitoyl oligopeptide

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

Categories: Cell-Communicating Ingredients

Best

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

Best

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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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 sort through the myths and half-truths of the cosmetic industry. With their expert advice, you’ll have the facts you need to take the best possible care of your skin.

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