Ingredient Guide

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Ranunculus ficaria extract may have anti-inflammative properties. But it can cause skin irritation and sensitivity to sun rays. Wear sunscrean after using products containing this ingredient.

Rapeseed oil is nonfragrant emollient oil that has antioxidant properties.
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Raspberry extract has potent antioxidant and antibacterial properties. But It can cause irritation due to its tannin content.
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Red elaeis guineensis (Red palm super olein) is red palm oil. This is an unprocessed and unheated palm oil and has a red color. Red palm oil is rich in betacarotenes, tocotrienols, co-enzyme Q10 (ubiquinone), squalene and vitamins A and E that make it nutritious when eaten. However, those components don’t necessarily mean it’s better for skin.
Products with this ingredient: HTY Gold moisturizer

Red rice vinegar is astringent.

Rehmannia chinensis root extract is derived from the plant also known as Chinese foxglove. No research skin benefits has been indicated.
Products with this ingredient: Shiseido White Lucent Brightening Eye Treatment

Resveratrol is major and potent antioxidant in red grapes and in red wine. It also has significant anti-inflammatory properties.

Retinol is the primary naturally occurring form of vitamin A. Vitamin A is a cell-communicating factor that maintains the normal function of skin cells. It enhances dry or damaged skin by reducing flaking and restoring suppleness. Vitamin A is also potent antioxidant that prevents aging.

Retinyl acetate is form of vitamin A.

Retinyl palmitate is form of vitamin A. It is a combination of retinol (pure vitamin A) and palmitic acid. It is effective antioxidant and anti-aging factor.

Rhodiola crenulata root extract has anti-inflammatory properties.
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Rhodiola rosea has been used in antidepressant, anticancer, cardioprotective, and central nervous system stimulation. No skin benefits have been reported.
Products with this ingredient: Clarins Younger Longer Balm

Riboflavin is vitamin B2. It has a bright deep yellow color so can be used as a colorant in cosmetics. But it may cause irritation and photodermatosis.
Products with this ingredient: YU-BE Moisturizing Skin Cream

Rice ferment filstrate (Sake) is made by fermenting rice, yielding low molecular peptides which offer a protective function for skin. It has moisturization, smoothing and soothing properties.
Products with this ingredient: Fresh Black Tea Age Delay Cream

Rice oil is natural nonfragrant emollient oil that is rich in antioxidant. But whether these translate into skin benefits has not been fully proved.
Products with this ingredient: Dermalogica daily microfoliant

Rosa canina is rose hip oil.
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Rosa centifolia flower extract is rose hip oil. It is a good emollient oil that has antioxidant properties.
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Rosa damascena oil is derived from a very fragrant pink rose that is used as fragrance in cosmetics.
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Rosa gallica flower extract is fragrant extract.

Rosa roxburghii extract is derived from the chestnut rose. It has good antioxidants properties for skin.
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Rose flower oil sooths allergic and sensitive skins as well as dry and mature skins. But the fragrant component can be a skin irritant and sensitizer.

Rose flower water is gentle emollient and has anti-inflammatory properties.

Rosmarinus officinalis (Rosemary) leaf extract is rosemary extract that has antioxidant properties. But with large amount the aromatic component can cause irritation or sensitization or toxic reactions on skin.
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Rubus ellipiticus root extract may have some anti-aging properties but it has not been fully researched.
Products with this ingredient: Fresh Appleseed Brightening Essence

Rumex crispus root extract has liver-cleansing effect when eaten. It may be a skin-conditioning and soothing agent.

Ruscus aculeatus see butcher’s broom extract. It may have anti-inflammatory properties for skin but it needs further evidence.
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Rubus fruticosus (Blackberry) leaf extract has been proved by a number of scientific studies to be a highly efficient multifunctional anti-aging active by inhibiting the actitivities of matrix metalloproteinases (MMPs) that accelerates wrinkle formation. The result is improved firmness and reversed damage caused by UV radiation.
Products with this ingredient:Aveeno Active Naturals Ageless Vitality Elasticity Revitalizing Day Moisturizer SPF 30

Rutin is extracted from various plants and used in cosmetics as an antioxidant and emollient.
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