True
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Ingredient Dictionary

Average

N-acetyl-L tyrosine

Read More »

Categories: Antioxidants, Skin Replenishing

Average

N6-furfuryladenine

Technical name for kinetin. Read More »

Categories: Plant Extracts, Skin Restoring

Good

NaPCA

See sodium PCA , natural moisturizing factor (NMF)

Categories: Skin Replenishing

Poor

Narcissus poeticus wax

Fragrant flower extract that can cause sensitizing reactions… Read More »

Categories: Plant Extracts, Sensitizing, Fragrance: Synthetic and Fragrant Plant Extracts

Good

Nardostachys jatamansi

Read More »

Categories: Antioxidants, Plant Extracts

Average

Nasturtium officinale extract

See watercress extract

Categories: Plant Extracts, Antioxidants

Good

natto gum

Fermentation product of soy protein. It may be a potent antioxidant (Source: Journal of... Read More »

Categories: Antioxidants, Plant Extracts

Best

natural moisturizing factor (NMF)

One of the primary elements in keeping skin feeling and looking healthier… Read More »

Categories: Skin Replenishing

Average

neem extract or oil

Extract from leaves of the neem tree, it has potential sensitizing effects, although it also has been... Read More »

Categories: Plant Extracts, Sensitizing, Fragrance: Synthetic and Fragrant Plant Extracts

Good

neopentyl glycol dicaprylate/dicaprate

Used as an emollient and thickening agent. Read More »

Categories: Thickeners/Emulsifiers, Emollients

Good

neopentyl glycol diheptanoate

Mixture of neopentyl glycol (film-forming agent and solvent) and heptanoic acid (fatty acid made... Read More »

Categories: Thickeners/Emulsifiers, Film-Forming/Holding Agents

Poor

neroli

See orange blossom

Categories: Fragrance: Synthetic and Fragrant Plant Extracts, Plant Extracts, Sensitizing

Poor

neroli oil

Fragrant plant oil that can be a skin sensitizer... Read More »

Categories: Plant Extracts, Fragrance: Synthetic and Fragrant Plant Extracts, Sensitizing

Average

nettle extract

Extract that may have soothing properties... Read More »

Categories: Skin Soothing, Plant Extracts

Best

niacin

See niacinamide

Categories: Skin Restoring, Vitamins

Best

niacinamide

Also known as vitamin B3 and nicotinic acid, niacinamide is a potent skin restoring ingredient... Read More »

Categories: Antioxidants, Vitamins, Skin Soothing, Skin Restoring

Best

nicotinamide

See niacinamide

Categories: Skin Restoring, Vitamins

Best

nicotinic acid

See niacinamide

Categories: Skin Restoring, Vitamins

Good

noni juice

Also known as morinda or Morinda citrifolia, comes from a small evergreen tree. The juice from this... Read More »

Categories: Plant Extracts, Antioxidants, Skin Soothing

Good

nonoxynols

Used as mild surfactants. Read More »

Categories: Surfactants/Detergent Cleansing Agents

Good

nylon-12

Powder substance that is used as an absorbent and thickening agent. Read More »

Categories: Absorbent, Thickeners/Emulsifiers

Best

Nymphaea tetragona

Also known as pygmy waterlily. The stem has been shown to be not only an antioxidant... Read More »

Categories: Antioxidants, Plant Extracts

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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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