All shelled mollusks can, by natural processes, produce some kind of “pearl” when an irritating microscopic object becomes trapped within its mantle folds, but the great majority of these “pearls” are not valued as gemstones.
A pearl is a hard glistening object produced within the soft tissue of a living shelled mollusk. a pearl is composed of calcium carbonate in minute crystalline form, which has been deposited in concentric layers. The ideal pearl is perfectly round and smooth, but many other shapes, known as baroque pearls, can occur. The finest quality natural pearls have been highly valued as gemstones and objects of beauty for many centuries. Because of this, pearl has become a metaphor for something rare, fine, admirable and valuable.
Pearl powder is a preparation of crushed pearls used in China and elsewhere for skin care and in traditional Chinese medicine.
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 balls in moist conditions. The powder is sold as such or mixed into creams.
USES OF PEARL IN COSMETICS
Pearl powder is widely believed to help improve the appearance of the skin, and is used as a cosmetic by royal families in Asia. It is also used as a treatment for acne. Some studies have claimed that pearl powder can stimulate the skin’s fibroblasts, help regenerate collagen, and accelerate healing of certain skin conditions, wounds, and burns.
Pearls are usually white or bluish-grey in colour, with a fine lustre and, being expensive to own
It have ‘anti-ageing properties’ and when applied to the skin it is believed to be able to “tone and rejuvenate complexion, heal blemishes, minimize large pores and reduce redness”.
Although natural pearls were traditionally used in making pearl powder, the lack of supply and the high cost of natural pearls resulted in the need for an alternative. Cultured pearls are not considered to be of the same medicinal quality as natural pearls, so Chinese technicians began to hydrolyze pearls – that is, to break their protein molecules down into their component parts.This is used in creams and brightening lotions intended to rejuvenate dull, dry skin; reduce the appearance of fine lines and wrinkles; smooth and firm skin; regulate discoloration and scarring; and even reduce blemishes