Pearl powder () is a preparation of crushed

pearl A pearl is a hard, glistening object produced within the soft tissue (specifically the mantle (mollusc), mantle) of a living Exoskeleton, shelled mollusk or another animal, such as fossil conulariids. Just like the shell of a mollusk, a pear ...

s used in

China China, officially the People's Republic of China (PRC), is a country in East Asia. With population of China, a population exceeding 1.4 billion, it is the list of countries by population (United Nations), second-most populous country after ...

and elsewhere for

skin care Skin care or skincare is the practice of maintaining and improving the health and appearance of the skin. It includes washing, moisturizing, protecting from the sun, and treating skin problems like acne and dryness. Skin care can help prevent i ...

and in

traditional Chinese medicine Traditional Chinese medicine (TCM) is an alternative medicine, alternative medical practice drawn from traditional medicine in China. A large share of its claims are pseudoscientific, with the majority of treatments having no robust evidence ...

Preparation

Pearl powder is made from freshwater pearls or saltwater pearls below jewellery grade. These are sterilised in boiling water and then milled into a fine powder using stainless steel grinding discs or by milling with small

porcelain Porcelain (), also called china, is a ceramic material made by heating Industrial mineral, raw materials, generally including kaolinite, in a kiln to temperatures between . The greater strength and translucence of porcelain, relative to oth ...

balls in moist conditions. The powder is sold as such or mixed into creams.

Uses

Cosmetic

Pearl powder is widely believed to help improve the appearance of the skin, and is used as a cosmetic by royal families in Asia.Jamie Ott, "Pearl powder: Eat it, wear it, brush your teeth with it", examiner.com, March 10, 2011 It is also used as a treatment for

acne Acne ( ), also known as ''acne vulgaris'', is a long-term Cutaneous condition, skin condition that occurs when Keratinocyte, dead skin cells and Sebum, oil from the skin clog hair follicles. Typical features of the condition include comedo, ...

. Some studies have claimed that pearl powder can stimulate the skin's

fibroblast A fibroblast is a type of cell (biology), biological cell typically with a spindle shape that synthesizes the extracellular matrix and collagen, produces the structural framework (Stroma (tissue), stroma) for animal Tissue (biology), tissues, and ...

s, help regenerate

collagen Collagen () is the main structural protein in the extracellular matrix of the connective tissues of many animals. It is the most abundant protein in mammals, making up 25% to 35% of protein content. Amino acids are bound together to form a trip ...

, and accelerate healing of certain skin conditions, wounds, and burns.

Medical

Pearl powder contains a number of

amino acids Amino acids are organic compounds that contain both amino and carboxylic acid functional groups. Although over 500 amino acids exist in nature, by far the most important are the Proteinogenic amino acid, 22 α-amino acids incorporated into p ...

, over 30 trace minerals, and a high concentration of

calcium Calcium is a chemical element; it has symbol Ca and atomic number 20. As an alkaline earth metal, calcium is a reactive metal that forms a dark oxide-nitride layer when exposed to air. Its physical and chemical properties are most similar to it ...

. In Chinese medicine, it is used as an

anti-inflammatory Anti-inflammatory is the property of a substance or treatment that reduces inflammation, fever or swelling. Anti-inflammatory drugs, also called anti-inflammatories, make up about half of analgesics. These drugs reduce pain by inhibiting mechan ...

and

detoxification Detoxification or detoxication (detox for short) is the physiological or medicinal removal of toxic substances from a living organism, including the human body, which is mainly carried out by the liver. Additionally, it can refer to the period o ...

agent, and as a relaxant. The calcium content is considered beneficial for calcium deficient persons with issues such as

osteoporosis Osteoporosis is a systemic skeletal disorder characterized by low bone mass, micro-architectural deterioration of bone tissue leading to more porous bone, and consequent increase in Bone fracture, fracture risk. It is the most common reason f ...

. A typical dose is 1 gram of pearl powder taken by mouth, traditionally mixed into water or tea, twice weekly. Excessive doses may cause calcium toxicity. The powder is also used to treat stomach and intestinal conditions such as

indigestion Indigestion, also known as dyspepsia or upset stomach, is a condition of impaired digestion. Symptoms may include upper abdominal fullness, heartburn, nausea, belching, or upper abdominal pain. People may also experience feeling full earlier ...

and chronic

constipation Constipation is a bowel dysfunction that makes bowel movements infrequent or hard to pass. The Human feces, stool is often hard and dry. Other symptoms may include abdominal pain, bloating, and feeling as if one has not completely passed the ...

. It is claimed to minimize pain from sores and ulcers, and to help reduce the sores and ulcers themselves.

History

China

The use in China of pearl powder, both as medicine and as cosmetic, dates back at least to 320 AD. Pearl powder was an ingredient in traditional Chinese medicine (TCM), in the treatment of eye diseases,

tuberculosis Tuberculosis (TB), also known colloquially as the "white death", or historically as consumption, is a contagious disease usually caused by ''Mycobacterium tuberculosis'' (MTB) bacteria. Tuberculosis generally affects the lungs, but it can al ...

and to prevent heart attacks. The empress Wu Ze Tian (625 AD – 705 AD) used pearl powder internally and on her skin. The medical book

Bencao Gangmu The ''Bencao gangmu'', known in English as the ''Compendium of Materia Medica'' or ''Great Pharmacopoeia'', is an encyclopedic gathering of medicine, natural history, and Chinese herbology compiled and edited by Li Shizhen and published in the ...

of the

Ming dynasty The Ming dynasty, officially the Great Ming, was an Dynasties of China, imperial dynasty of China that ruled from 1368 to 1644, following the collapse of the Mongol Empire, Mongol-led Yuan dynasty. The Ming was the last imperial dynasty of ...

claimed that pearl can stimulate new skin growth and healing, release toxins, and remove sun damage and age spots.

India

Pearl powder was also used in

Ayurvedic medicine Ayurveda (; ) is an alternative medicine system with historical roots in the Indian subcontinent. It is heavily practised throughout India and Nepal, where as much as 80% of the population report using ayurveda. The theory and practice of ayur ...

in the

Indian subcontinent The Indian subcontinent is a physiographic region of Asia below the Himalayas which projects into the Indian Ocean between the Bay of Bengal to the east and the Arabian Sea to the west. It is now divided between Bangladesh, India, and Pakista ...

. Narahari, a physician of

Kashmir Kashmir ( or ) is the Northwestern Indian subcontinent, northernmost geographical region of the Indian subcontinent. Until the mid-19th century, the term ''Kashmir'' denoted only the Kashmir Valley between the Great Himalayas and the Pir P ...

, wrote in about 1240 that the pearl was an antidote to poisons, cured conditions of the eyes,

consumption Consumption may refer to: * Eating *Resource consumption *Tuberculosis, an infectious disease, historically known as consumption * Consumer (food chain), receipt of energy by consuming other organisms * Consumption (economics), the purchasing of n ...

and "morbid disturbances", and increased general strength and health. Powdered pearl was also an ingredient of love potions. An Indian pharmacological work published in 1903 listed the powder as a tonic, stimulant and aphrodisiac.

Philippines

In the Philippines, from pre-colonial times, selected youths called '' binukot'' are special type of princes and princesses that were kept in seclusion and hidden from the sun in order to have fair and white skin. The ''binukot'' were fed crushed pearl powders to enhance the fairness and luminosity of their skin. Crushed pearl powder was also applied to their face and body to make their skin more pale and firm.

Europe

In medieval Europe, pearl powder was widely perceived to have therapeutic qualities. It was used in an attempt to treat the insanity of

Charles VI of France Charles VI (3 December 136821 October 1422), nicknamed the Beloved () and in the 19th century, the Mad ( or ''le Fou''), was King of France from 1380 until his death in 1422. He is known for his mental illness and psychosis, psychotic episodes t ...

(1368–1422), and the fever of which

Lorenzo de Medici Lorenzo di Piero de' Medici (), known as Lorenzo the Magnificent (; 1 January 1449 – 9 April 1492), was an Italian statesman, the '' de facto'' ruler of the Florentine Republic, and the most powerful patron of Renaissance culture in Italy. Lo ...

died in 1492. Seventeenth-century German and English works claimed its effectiveness in a wide range of physical and mental conditions.

Francis Bacon Francis Bacon, 1st Viscount St Alban (; 22 January 1561 – 9 April 1626) was an English philosopher and statesman who served as Attorney General and Lord Chancellor of England under King James I. Bacon argued for the importance of nat ...

(1561–1626) recommended it as a means of prolonging life."The Book of the Pearl", p. 313 Pearl powder was also used as a skin whitener by women in Europe during the nineteenth century; one work, however, deprecated it as imparting a "pale, sickly hue", as well as being injurious to the skin and general health.

References

Sources

* George Frederick Kunz & Charles Hugh Stevenson (1908), "The Book of the Pearl: Its History, Art, Science, and Industry", Courier Corporation. {{ISBN, 9780486422763 Pearls Traditional Chinese medicine Skin care Powders