Page 226 - Cosmetology

isopropyl alcohol. See alcohol.

isopropyl lanolate. Derived from lanolin, it is used in cosmetics as a thickening agent and emollient.

isopropyl myristate. Used in cosmetics as a thickening agent and emollient. Historically, animal testing has
shown it to be a cause of clogged pores. That type of testing was eventually considered unreliable and there
is no subsequent research showing this ingredient to be any more of a problem for skin than other emollient,
waxy ingredients used in cosmetics.

isopropyl palmitate. Used in cosmetics as a thickening agent and emollient. As is true for any emollient or
thickening agent, it can potentially clog pores, depending on the amount used in the product.

isostearamide DEA. Used as a surfactant, water-binding agent, and thickening agent. See surfactant,
water-binding agent, and thickening agent.
J

Japan wax. Vegetable wax obtained from sumac berries. It is used as a thickening agent and emollient in
cosmetics.

Japanese dandelion. There is a small amount of research showing it to have anti-tumor properties on
mouse skin. But it can also be a skin irritant. See dandelion extract.

jasmine oil. Fragrant oil, often used as a source of perfume, that can be a skin irritant or sensitizer.It may
have antifungal properties.

Jasminium grandiflorum. See jasmine oil.

jewelweed. Has antifungal properties. There is one animal study showing that, when taken orally, it can stop
itching associated with dermatitis, however, when applied topically there is no benefit when compared to a
placebo in cases using jewelweed to reduce itching related to dermatitis or poison ivy.

jojoba oil. Emollient oil similar to other nonfragrant plant oils. See natural moisturizing factors.

jojoba wax. The semi-solid portion of jojoba oil. See natural moisturizing factors.

jonquil extract. Fragrant plant extract that poses a strong risk of skin irritation.

Ju hua. See chrysanthemum extract.

juniper berry. Can have anti-inflammatory properties for skin, though the methanol content, with repeated
application, can cause skin irritation.
K

kaolin. Natural claylike mineral (silicate of aluminum) that is used in cosmetics for its absorbent properties.

Kathon CG. See methylchloroisothiazolinone.

katrafay oil. Emollient plant oil that may have anti-inflammatory properties; however there is no research
supporting this use.

kava-kava extract. Extract of the Piper methysticum plant that has analgesic (anti-inflammatory) properties,
but can also cause skin irritation and dermatitis.

kawa extract. See kava-kava extract.

kelp extract. See algae.

kelpadelie extract. Common name for an extract from Macrocystis pyrifera. See algae.

Khaya senegalensis extract. May have some antimicrobial properties.

Khus khus extract. See vetiver oil or extract.