Ingredient Dictionary

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Renova

See Retin-A , tretinoin

Categories: Vitamins, Prescription Drugs, Cell-Communicating Ingredients

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cell-communicating ingredients

Cell-communicating ingredients, theoretically, have the ability to tell a skin cell to look, act,... Read More »

Categories: Antioxidants, Cell-Communicating Ingredients

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palmitoyl tripeptide-5

See cell-communicating ingredients , peptides

Categories: Cell-Communicating Ingredients

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decarboxy carnosine HCL

See carnosine , cell-communicating ingredients

Categories: Cell-Communicating Ingredients, Anti-Irritants

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retinoids

Large group of over 2,500 chemicals related to vitamin A. Topical, over-the-counter retinoids... Read More »

Categories: Vitamins, Cell-Communicating Ingredients, Prescription Drugs

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gamma linolenic acid (GLA)

Fatty acid used in cosmetics as an emollient, antioxidant, and cell regulator. GLA is considered to... Read More »

Categories: Cell-Communicating Ingredients, Antioxidants, Emollients

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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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phytosphingosine

Long-chain, complex fatty alcohol that functions as a water-binding agent and also has preservative... Read More »

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

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ATP

See adenosine triphosphate

Categories: Anti-Irritants, Cell-Communicating Ingredients

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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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retinol

The name for the entire vitamin A molecule. Retinol has value for skin on several fronts: it is a... Read More »

Categories: Cell-Communicating Ingredients, Antioxidants, Vitamins

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peptides

Peptides are portions of proteins, which are long (or sometimes short) chains of amino acids. In... Read More »

Categories: Cell-Communicating Ingredients

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GLA

See gamma linolenic acid (GLA)

Categories: Antioxidants, Emollients, Cell-Communicating Ingredients

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tretinoin

Topical, prescription-only medication that can improve skin cell maturation after skin has been... Read More »

Categories: Antibacterial/Anti-Acne, Prescription Drugs, 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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Tamarindus indica seed extract

More commonly known as tamarind, the seed extract is used more often for care of the eye itself rather than for skin care. Read More »

Categories: Antioxidants, Cell-Communicating Ingredients

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palmitoyl hexapeptide-12

See palmitoyl oligopeptide

Categories: Cell-Communicating Ingredients

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pentapeptides

Pentapeptides are a type of peptide where the peptide has five ("penta") amino acids. There are dozens of pentapeptides used in cosmetic products. Read More »

Categories: 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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Cucurbitea peponis

See pumpkin

Categories: Vitamins, Cell-Communicating Ingredients, Antioxidants, Fragrance: Synthetic and Fragrant Plant Extracts, Plant Extracts

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vitamin B3

See niacinamide

Categories: Vitamins, Cell-Communicating Ingredients

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vitamin F

Name sometimes used to represent essential fatty acids of linoleic acid and linolenic acid. These... Read More »

Categories: Antioxidants, Vitamins, Emollients, 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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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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sphingolipids

Sphingolipids are complex lipids (fats) that function as skin-repairing and conditioning ingredients... Read More »

Categories: Cell-Communicating Ingredients, 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:

View Media Highlights

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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