Clays Flashcards

1
Q

What are the primary uses of Clays

A

drawing and adsorptive properties—meaning ionic bonds cause other substances to “stick” to clay particles (Williams & Haydel, 2010). Clay muds and pastes may be used to cleanse, nourish, exfoliate, and purify the skin, drawing out excess oil and impurities, and are often used in face masks and other cleansers; they may also be used in dry shampoos, deodorants, soaps, poultices, and toothpastes or powders. Clay can also have antimicrobial properties when applied to the skin (Williams & Haydel, 2010), which is another reason it may be included in cleansing and purifying skin products.

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2
Q

How are clays classified?

A

Different types of clay are classified by their mineral elements—for example, bentonite, kaolinite, and montmorillonite are minerals commonly found in different types of clay soil

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3
Q

What kind of skin types are clays more appropriate for?

A

In general, clays—especially when applied as a mud mask or pack—have a drying, astringing quality, making them most appropriate for use on more oily skin; using a less drying type of clay, or combining with moisturizing, emollient ingredients can make clays more suitable for dry or sensitive skin types.

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4
Q

What are the 3 major categories of clay?

A

Smectite: clays that expand in water and that are known for their strong drawing and absorptive propperties

Illite:Light and fluffy clays that do not expand in water, are gently exfolliating and have strong drawing propperties.

Kaolin:Less drawing and drying than smectite and illite clays. Used to gently stimulate circulation, exfollitate and cleanse.

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5
Q

Name 5 smectite clays

A
Bentonite clay
French grean clay
French yellow clay
Fuller's earth clay
Rhassoul clay
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6
Q

Name 1 illite clay

A

Green illite clay

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7
Q

Name 3 Kaoline clays

A

Red, white and yellow Kaoline clays

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8
Q

Bentonite: Properties

A

Antibacterial
useful for dermatitis and skin ulcers

highly absorbant

very drying

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9
Q

Bentonite: Skin type

A

Congested, oily skin

not recommended for dry skin

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10
Q

Bentonite: Common Uses

A
Body wraps
Deodorants
Foot powders
Hair masks
Poultices
Tooth powders
Tooth paste
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11
Q

French Green Clay: Properties

A
Highly absorbent
promotes circulation
Rich in minerals
Anti-Microbial
Anti-inflammatory
Vulnerary
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12
Q

French Green Clay: Skin Types

A

Combination skin
Acne prone skin
Clogged pores

Not suggested for Dry and sensitive skin

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13
Q

French Green Clay: Common Uses

A

Bodywraps
Cosmetics
Scrubs
Masks

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14
Q

French Yellow Clay: Properties

A

Softer and less drawing than other smectite clays

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15
Q

French Yellow Clay: Skin Type

A

Sensitive and Dry skin

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16
Q

French Yellow Clay: Common Uses

A

Bodywraps
Cosmetics
Scrubs
Masks

17
Q

Fuller’s Earth: Properties

A

Srongly oil drawing and bacteria drawing

Skin lightening

18
Q

Fuller’s Earth: Skin Type

A

Oily, acne prone

19
Q

Fuller’s Earth: Common Uses

A

Mask
Poultice
Scrubs
Blemish preparations

20
Q

Rhassoul clay: Properties

A

Rich in minerals
Moderately drying
Often used to improve skin elasticity

21
Q

Rhassoul clay: Skin Type

A

Sensitive, Mature, Prone to blackheads

22
Q

Rhassoul clay: Common Uses

A
Body wraps
Masks
Cosmetics
Soaps
Scrubs
23
Q

Green illite clay: Properties

A

strongly drawing

24
Q

Green illite clay: Skin Type

A

oily skin

not recommended for dry or normal skin

25
Green illite clay: Common uses
``` Blemish preparations Deodorants Foot powders Poultices Soaps ```
26
Red Kaolin clay:Properties
``` anti-inflammatory Brightening Rich in minerals Most drawing and drying of the Kaolin clays Vulnerary ```
27
Red Kaolin clay: Skin type
Oily skin
28
White Kaolin clay: Properties
antibacterial least drying clay very fine and light particles
29
White Kaolin clay: Skin type
Dry skin sensitive skin
30
White Kaolin clay: Common uses
``` Body powders Cleansers Cosmetics Deodorants Masks Scrubs ```
31
Yellow Kaolin clay: Properties
Slightly more drawing and exfoliating than white koalin clay
32
Yellow kaolin clay: Skin types
Most skin types
33
Yellow kaolin clay: Common Uses
Cleansers Cosmetics Masks Scrubs
34
Which other two ingredients are often used in the same way as clays?
Cornstarch and arrowroot powder are often used in the same way as clays, as thickening, drawing, and astringent agents. They can be found in natural deodorants, baby or body powders, dry shampoos, and facial cosmetics. Cornstarch is, of course, made from corn, which, in the U.S., is almost exclusively made using genetically modified corn, although non-genetically modified cornstarch is available. Arrowroot powder is a similar product made from a starchy tuber; although the two products are very similar and almost interchangeable, arrowroot is slightly finer than cornstarch and has a more silky feel.