100% prepayment by SWIFT or Stripe. Pearl nacre grade price on request; freight quoted per order
Functional ingredient·
Marine minerals
·Japan

Akoya Pearl Powder

Japanese Akoya pearl powder for brands and formulators, in two named grades, with a spec for each grade and a lot CoA and certificate of origin for the mother-of-pearl grade.

500 g
Minimum order
950 USD/kg (mother-of-pearl)
MOQ price
20 g
Free sample
Ships from Japan 1-1.5 weeks after paymentFreight quoted on requestSWIFT or Stripe
Akoya Pearl Powder
Specification · lot CoA

Key figures at a glance

Your lot's CoA governs
Median particle size (D50)
1.99 µm
laser diffraction; 100% below 12.7 µm
Lead
0.60 ppm
ICP-MS, independent laboratory
Arsenic
Not detected
LOQ 0.5 ppm; inorganic As LOQ 0.1 ppm
Cadmium, mercury
Not detected
LOQ 0.01 ppm each
Ash
95.9 g/100 g
protein 2.1 g, moisture 0.7 g
Total viable count
max. 300 /g
coliforms negative
Lot-specific values are measured and reported for every lot. Natural raw materials move with season and harvest, so we give you the figures of the lot you actually receive, not one fixed number.
What it is
100% Akoya nacre (Pinctada fucata), single ingredient, no fillers, carriers or anti-caking agents. Two grades: mother-of-pearl (shell nacre) and pearl nacre (pearl, nucleus removed)
Form
Mother-of-pearl grade: white, tasteless, odourless micronised powder, D50 about 2 µm. Pearl nacre grade: white to pale yellow fine powder, 280 mesh
Shelf life
5 years from the date of manufacture; keep sealed, away from high temperature, humidity and direct sunlight
Packing
Mother-of-pearl grade in 100 g and 5 kg bags. MOQ 500 g for either grade
Lead time
Ships from Japan 1-1.5 weeks after payment; mother-of-pearl grade travels with its lot CoA and certificate of origin
Terms
100% prepayment by SWIFT or Stripe. Pearl nacre grade price on request; freight quoted per order
Price and documents

Request a price, specification or sample

Tell us what you are developing and which documents you need. We reply from Japan within one working day with the product specification, SDS and the CoA of the current lot.

Free sample for registered companies developing a product
Volume quotation for orders above the minimum
Specification, SDS and lot CoA on request

Request a sample or quotation

All fields required. Business email only.
Process

How it is made

Both grades are non-calcined nacre: no calcination or heat firing is applied, which keeps the aragonite crystal form. The mother-of-pearl grade is shell nacre, sterilised and dried, milled to a fine powder and packed under a lot number; the outer prismatic layer is ground off before processing. The pearl nacre grade follows the producer's seven-step process below.

Calcination changes the crystal form: in one study, 30 minutes at 400 °C partly converted the aragonite in pearl powder to calcite and fully converted it in shell powder. That is why we state the calcination status for each grade. If you run an identity test, test the mother-of-pearl grade as shell nacre, not as pearl.

Pearl selection

Step 1 · raw material

Akoya pearls, Japan

Crushing and nucleus removal

Step 2 · nacre only

The pearl nucleus is removed

Sterilisation and washing

Step 3 · cleaning

Before drying

Drying

Step 4 · drying

Nacre fragments

Milling

Step 5 · milling

To a fine powder

Sieving

Step 6 · 280 mesh

Residue max. 0.5%

Filling and inspection

Step 7 · packing

Product inspection before release

Specification

Specification at a glance

The grade on this page. Other grades, where available, are specified on request.

Identity and composition

  • Source material: mollusc, Akoya pearl oyster (Pinctada fucata), a saltwater species; origin Japan
  • Mother-of-pearl grade: inner nacre layer of the Akoya oyster shell only; the outer prismatic layer is ground off
  • Pearl nacre grade: genuine pearl powder made solely from the nacre of Akoya pearls; the pearl nucleus is removed
  • Composition: 100% Akoya nacre, single ingredient, no fillers, carriers or anti-caking agents; about 95% calcium carbonate and about 5% organic matter (conchiolin)
  • Pearl nacre grade, typical composition: calcium carbonate 92.1%, conchiolin 4.7%, moisture 1.0%, trace minerals 2.2%
  • INCI: Pearl Powder (pearl nacre grade); the SDS states cosmetic use for the pearl nacre grade only
  • Appearance: mother-of-pearl grade: white, tasteless, odourless; pearl nacre grade: white to pale yellow fine powder, tasteless, slight characteristic odour

Process and peptide profile

  • Calcination status: both grades non-calcined; no calcination or heat firing is applied
  • Particle size, mother-of-pearl grade: laser diffraction: D10 0.73 µm, D50 1.99 µm, D90 5.58 µm, 100% below 12.7 µm (volume-based)
  • Particle size, pearl nacre grade: residue on a 280-mesh sieve max. 0.5%, so at least 99.5% passes 280 mesh
  • Nano statement: number-based distribution not measured for either grade, so no nano or non-nano statement is made

Analytical specification

  • Moisture, mother-of-pearl grade: 0.7% (loss on drying, current lot)
  • Moisture, pearl nacre grade: max. 3.0%
  • Nutrition per 100 g, mother-of-pearl grade (current lot): ash 95.9 g, protein 2.1 g, carbohydrate 1.3 g, fat below 0.1 g, moisture 0.7 g, energy 14 kcal, sodium 570 mg (salt equivalent 1.4 g)

Contaminants, microbiology and safety

  • Mother-of-pearl grade, specification: arsenic (as As₂O₃) not detected, LOQ 0.5 ppm; heavy metals (as Pb) not detected, LOQ 5 ppm; fluorine not detected, LOQ 50 ppm
  • Mother-of-pearl grade, current lot (independent laboratory): lead 0.60 ppm (ICP-MS); cadmium, total mercury not detected (LOQ 0.01 ppm); arsenic not detected (LOQ 0.5 ppm); inorganic arsenic not detected (LOQ 0.1 ppm)
  • Mother-of-pearl grade, microbiology: total viable count max. 300 /g (standard agar) and max. 100 /g (SCDLP agar); coliforms negative
  • Pearl nacre grade: arsenic (as As) max. 2 ppm; heavy metals (as Pb) max. 20 ppm; total viable count max. 3,000 /g; coliforms negative
  • GHS: neither grade meets the criteria for hazard classification (SDS)

Shelf life, storage and packing

  • Shelf life: 5 years from the date of manufacture, both grades
  • Storage: away from high temperature, high humidity and direct sunlight; keep sealed
  • Packing: mother-of-pearl grade in 100 g and 5 kg bags
  • MOQ: 500 g for either grade
  • Price: mother-of-pearl grade 950 USD/kg at the minimum order; pearl nacre grade on request; freight quoted per order
  • Documents, mother-of-pearl grade: specification, lot CoA with heavy metals panel and nutrition analysis (for food use), process description, SDS, certificate of origin for the raw material
  • Documents, pearl nacre grade: specification, process description and SDS
  • Samples: 20 g evaluation samples on request for registered businesses
SPEC
Product specification, PDF. On request through the form.
CoA
Certificate of Analysis. One for every lot, ships with the goods.
SDS
Safety Data Sheet. On request through the form.

Example lot values are published in the developer's guide below. They are an example, not a specification; your lot's CoA governs.

Direct from Japan

Working with us

A Japanese trading company selling directly to brand owners and contract manufacturers. No distributor layer between you and the documents.

A CoA for the lot you receive

Every shipment travels with the Certificate of Analysis of its own lot, with the measured values and the full safety panel.

Start at the minimum order

A small first order lets you run a pilot batch before committing to bulk. Larger volumes are quoted by volume and delivery terms.

Free sample

For registered companies developing a product. Tell us the format you plan and we will say honestly what to expect.

Ships from Japan in 1-1.5 weeks

After payment is received. Freight quoted on request. Specification and SDS before you order, CoA with the goods.

Buyer's checklist

What to ask any supplier

If you are comparing ingredients for a new SKU, these questions separate one material from another quickly.

For product developers

The developer's guide

What each component is, what the processing changes, and what published research on the raw material has examined. No health claims; references on request.

Japanese Akoya pearl powder for brands, in two named grades

We supply Japanese Akoya powder wholesale to supplement and cosmetic brands, formulators and distributors. We name the grade on every spec, CoA and quotation, so your label and your lab file say the same thing.

Which grade fits your product

Choose the pearl nacre grade when the pearl itself is part of your product story. Choose the mother-of-pearl grade when you need a very fine powder and a heavy metals panel measured on the current lot. Not sure? We send specs for both side by side.

For cosmetic formulations: the SDS states cosmetic use for the pearl nacre grade only.

How to order

Tell us your application, target market and quantity. We reply with the spec for the right grade and a quotation. 20 g evaluation samples are available on request for registered businesses.

Use the request form or the Contact page.

What Akoya nacre is, and how the two grades differ

Nacre, also called mother-of-pearl, is the iridescent layer the Akoya oyster lays down, in thin platelets, on the inside of its shell and around a pearl. Our two grades are both nacre. What differs is where the nacre comes from and how finely it is milled.

Which species, and is it saltwater?

The Akoya pearl oyster is a marine bivalve, Pinctada fucata (also listed as Pinctada fucata martensii or Pinctada martensii). It is a saltwater species, not a freshwater mussel. Both grades come from this species.

In INCI nomenclature, Pearl Powder covers ground freshwater or saltwater pearls, and Nacre Powder covers powder from mother of pearl. The INCI name alone does not tell you the species or whether the source is marine.

Why calcination status matters

Calcination changes the crystal form: in one study, 30 minutes at 400 °C partly converted the aragonite in pearl powder to calcite and fully converted it in shell powder. That is why we state the calcination status for each grade.

  • Mother-of-pearl grade: non-calcined, confirmed by the mill; no calcination or heat firing is applied. Process: the nacre is sterilised and dried, milled to a fine powder and packed under a lot number.
  • Pearl nacre grade: non-calcined per the producer; the producer's process for this grade has no calcination step. Process: pearl selection, crushing of the nacre and removal of the nucleus, sterilisation and washing, drying, milling, sieving, filling and product inspection.

If you run an identity test, test the Mother-of-pearl grade as shell nacre, not as pearl: published methods tell the two apart by how their aragonite changes on heating.

What nacre is made of

Pearl and nacre are about 95% calcium carbonate and about 5% organic matter, mainly a protein matrix known as conchiolin (review, Frontiers in Bioengineering and Biotechnology, 2021). Pearl nacre is laid down by the pearl sac, shell nacre by the mantle; their composition is very close.

Mother-of-pearl grade: what we measured on the current lot

Buyers of single-ingredient pearl products increasingly ask for measured values on the lot rather than limits on a specification.

  • Particle size by laser diffraction: D10 0.73 µm, D50 1.99 µm, D90 5.58 µm, 100% below 12.7 µm
  • Heavy metals by independent laboratory: lead 0.60 ppm (ICP-MS); cadmium not detected (LOQ 0.01 ppm); total mercury not detected (LOQ 0.01 ppm); arsenic not detected (LOQ 0.5 ppm); inorganic arsenic not detected (LOQ 0.1 ppm)
  • Per 100 g: ash 95.9 g, protein 2.1 g, carbohydrate 1.3 g, fat below 0.1 g, moisture 0.7 g, energy 14 kcal, sodium 570 mg (salt equivalent 1.4 g)
  • Manufactured: December 2025

Pearl nacre grade: typical composition from the producer

Calcium carbonate 92.1%, conchiolin 4.7%, moisture 1.0%, trace minerals 2.2%.

Why particle size matters to a formulator

Particle size decides where a powder fits. A micronised powder is the natural choice where an even, fine texture matters, for example capsule blends; a 280 mesh powder suits masks. Pearl and nacre powders are mineral and do not dissolve in water. In creams they can pill and in oils they can settle, so we recommend a dispersion trial in your own base.

Our particle size data for the Mother-of-pearl grade are volume-based; we specify the Pearl nacre grade by sieve residue. We have not measured a number-based distribution for either grade, so we make no nano or non-nano statement.

Sources

  • Calcination and identification of pearl powder, 2014: PMID 25532338
  • Review of pearl and nacre composition, Frontiers in Bioengineering and Biotechnology, 2021: DOI 10.3389/fbioe.2021.649665

Related ingredients

Also in our functional food range: Peptide Oyster Extract Powder, Fish Collagen Tripeptide and Elastin Fish Peptide. Browse the full list in our functional food ingredients catalogue.

FAQ

Before you order

What is the difference between the two grades?

The mother-of-pearl grade is the inner nacre layer of the Akoya oyster shell, very fine (around 2 µm median). The pearl nacre grade comes from the pearl itself with the nucleus removed, 280 mesh.

What is the minimum order?

500 g for either grade. The mother-of-pearl grade is packed in 100 g and 5 kg bags.

Which documents come with the powder?

Both grades come with a specification, a process description and an SDS. The mother-of-pearl grade also comes with a lot certificate of analysis, including a heavy metals panel and a nutrition analysis on the current lot, and a certificate of origin for the raw material.

Do you ship outside Japan?

Yes. We ship from Japan; freight is quoted per order. Import requirements in your market are handled by the buyer.

Can I get a spec before ordering?

Yes. Send us your application and we will share the spec for the grade that fits.
Akoya Pearl Powder

Ready to run a first batch?

Start at the minimum order. Free sample. Specification, SDS and lot CoA on request.

Request a sample or quotation
950 USD/kg (mother-of-pearl)
at MOQ · free sample
Request a sample

Akoya Pearl Powder

Japanese Akoya pearl powder for brands and formulators, in two named grades, with a spec for each grade and a lot CoA and certificate of origin for the mother-of-pearl grade.
Request specs
CATEGORY
Marine minerals
MOQ
500 g
MOQ price
950 USD/kg (mother-of-pearl)

Japanese Akoya pearl powder for brands, in two named grades

We supply Japanese Akoya powder wholesale to supplement and cosmetic brands, formulators and distributors. We name the grade on every spec, CoA and quotation, so your label and your lab file say the same thing.

Which grade fits your product

Choose the pearl nacre grade when the pearl itself is part of your product story. Choose the mother-of-pearl grade when you need a very fine powder and a heavy metals panel measured on the current lot. Not sure? We send specs for both side by side.

For cosmetic formulations: the SDS states cosmetic use for the pearl nacre grade only.

How to order

Tell us your application, target market and quantity. We reply with the spec for the right grade and a quotation. 20 g evaluation samples are available on request for registered businesses.

Use the request form or the Contact page.

Price and documents

Request a price, specification or sample

What Akoya nacre is, and how the two grades differ

Nacre, also called mother-of-pearl, is the iridescent layer the Akoya oyster lays down, in thin platelets, on the inside of its shell and around a pearl. Our two grades are both nacre. What differs is where the nacre comes from and how finely it is milled.

Which species, and is it saltwater?

The Akoya pearl oyster is a marine bivalve, Pinctada fucata (also listed as Pinctada fucata martensii or Pinctada martensii). It is a saltwater species, not a freshwater mussel. Both grades come from this species.

In INCI nomenclature, Pearl Powder covers ground freshwater or saltwater pearls, and Nacre Powder covers powder from mother of pearl. The INCI name alone does not tell you the species or whether the source is marine.

Why calcination status matters

Calcination changes the crystal form: in one study, 30 minutes at 400 °C partly converted the aragonite in pearl powder to calcite and fully converted it in shell powder. That is why we state the calcination status for each grade.

  • Mother-of-pearl grade: non-calcined, confirmed by the mill; no calcination or heat firing is applied. Process: the nacre is sterilised and dried, milled to a fine powder and packed under a lot number.
  • Pearl nacre grade: non-calcined per the producer; the producer's process for this grade has no calcination step. Process: pearl selection, crushing of the nacre and removal of the nucleus, sterilisation and washing, drying, milling, sieving, filling and product inspection.

If you run an identity test, test the Mother-of-pearl grade as shell nacre, not as pearl: published methods tell the two apart by how their aragonite changes on heating.

What nacre is made of

Pearl and nacre are about 95% calcium carbonate and about 5% organic matter, mainly a protein matrix known as conchiolin (review, Frontiers in Bioengineering and Biotechnology, 2021). Pearl nacre is laid down by the pearl sac, shell nacre by the mantle; their composition is very close.

Mother-of-pearl grade: what we measured on the current lot

Buyers of single-ingredient pearl products increasingly ask for measured values on the lot rather than limits on a specification.

  • Particle size by laser diffraction: D10 0.73 µm, D50 1.99 µm, D90 5.58 µm, 100% below 12.7 µm
  • Heavy metals by independent laboratory: lead 0.60 ppm (ICP-MS); cadmium not detected (LOQ 0.01 ppm); total mercury not detected (LOQ 0.01 ppm); arsenic not detected (LOQ 0.5 ppm); inorganic arsenic not detected (LOQ 0.1 ppm)
  • Per 100 g: ash 95.9 g, protein 2.1 g, carbohydrate 1.3 g, fat below 0.1 g, moisture 0.7 g, energy 14 kcal, sodium 570 mg (salt equivalent 1.4 g)
  • Manufactured: December 2025

Pearl nacre grade: typical composition from the producer

Calcium carbonate 92.1%, conchiolin 4.7%, moisture 1.0%, trace minerals 2.2%.

Why particle size matters to a formulator

Particle size decides where a powder fits. A micronised powder is the natural choice where an even, fine texture matters, for example capsule blends; a 280 mesh powder suits masks. Pearl and nacre powders are mineral and do not dissolve in water. In creams they can pill and in oils they can settle, so we recommend a dispersion trial in your own base.

Our particle size data for the Mother-of-pearl grade are volume-based; we specify the Pearl nacre grade by sieve residue. We have not measured a number-based distribution for either grade, so we make no nano or non-nano statement.

Sources

  • Calcination and identification of pearl powder, 2014: PMID 25532338
  • Review of pearl and nacre composition, Frontiers in Bioengineering and Biotechnology, 2021: DOI 10.3389/fbioe.2021.649665

Related ingredients

Also in our functional food range: Peptide Oyster Extract Powder, Fish Collagen Tripeptide and Elastin Fish Peptide. Browse the full list in our functional food ingredients catalogue.

Akoya Pearl Powder
Got Questions? We've Got Answers

Frequently Asked Questions

  • What is the difference between the two grades?

    The mother-of-pearl grade is the inner nacre layer of the Akoya oyster shell, very fine (around 2 µm median). The pearl nacre grade comes from the pearl itself with the nucleus removed, 280 mesh.

  • What is the minimum order?

    500 g for either grade. The mother-of-pearl grade is packed in 100 g and 5 kg bags.

  • Which documents come with the powder?

    Both grades come with a specification, a process description and an SDS. The mother-of-pearl grade also comes with a lot certificate of analysis, including a heavy metals panel and a nutrition analysis on the current lot, and a certificate of origin for the raw material.

  • Do you ship outside Japan?

    Yes. We ship from Japan; freight is quoted per order. Import requirements in your market are handled by the buyer.

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