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Animal and marine sources · in-depth review

Pearl

Pearl

Pearl powder is finely ground aragonite calcium carbonate from nacre, with trace amino acids, used for mineral calcium and traditionally for a dull, dry-looking complexion.

Also known asPearl powderMargaritanacreNacre powder
Related symptomsDry skin
Disease classesDiseases of the skin

Marked asPrimarySupporting

Primary

Supply mineral calcium as carbonate

Nacre is almost entirely aragonite calcium carbonate, which releases calcium ions into the mineral pool used in bone mineralisation. People who eat little dairy and want a powder calcium source often cover daily calcium along this carbonate path after weeks.

Supporting

Ease dull complexion and dry-looking skin

Traditional formulas use pearl powder for a dull complexion; the fine powder also carries trace amino acids. People whose skin looks dry and low in sheen often feel the surface finer and more supple with continued use.

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With foodTake with meals; separate from levothyroxine or certain antibiotics.
Best timeMorning or with main meals
SolubilityInsoluble, Water-dispersible

After continued use, reassess by how you feel and whether you still need it.

General wellnessTypical daily intake: pearl powder 300–1,000 mg.
Specific needsCommon adult upper limit about 1,500 mg powder/day; count total calcium against the dietary UL. Ask a doctor first with kidney stones or high blood calcium.

How oftenUsually fine to use daily; adjust to personal need.

Cautions

People with high blood calcium, kidney stones, or kidney disease should ask a doctor first. Ask a doctor first if you are pregnant or breastfeeding.

Interactions

  1. Levothyroxine, tetracyclines/quinolones (separate doses)
  2. Iron (mutual absorption interference)
Common side effects

· Some people may notice mild digestive or other discomfort.

Rare but important

· If discomfort persists or you worry about drug interactions, seek professional advice.

Long-term dependenceNo typical addiction evidence; do not exceed labeled amounts on your own long term.

Medical disclaimerThis page is compiled by the HerbBB editorial team for general health information only. It is not a substitute for advice from a doctor, pharmacist, or other qualified clinician. If you have a health condition, take medicines, or are pregnant or breastfeeding, speak with a professional first.