100% prepayment by SWIFT or Stripe. Larger orders quoted by volume; freight quoted on request
Functional ingredient·
Marine mineral powder
·Japan

Deep Sea Water Powder

A white mineral powder made from desalinated deep sea water drawn off Okinawa, Japan, on a gamma-cyclodextrin carrier: 25% deep sea water solids, 75% carrier. Magnesium leads the mineral profile at 2,890 mg per 100 g, about 29 mg per gram. The documented application is masking taste and odour in powdered drinks such as green vegetable and protein mixes.

10 kg
Minimum order
190 USD/kg
MOQ price
50 g
Free sample
Ships from Japan 1-1.5 weeks after paymentFreight quoted on requestSWIFT or Stripe
Deep Sea Water Powder
Specification · lot CoA

Key figures at a glance

Your lot's CoA governs
Magnesium
2,890 mg/100 g
typical value, ICP-OES; about 29 mg per gram
Sodium
958 mg/100 g
typical value, ICP-OES
Potassium
689 mg/100 g
typical value, atomic absorption
Deep sea water solids
25.0%
75.0% gamma-cyclodextrin carrier
Water activity
Aw max. 0.5
white powder, no off-odour
Total plate count
max. 3,000 CFU/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
Mineral powder from desalinated deep sea water drawn off Okinawa, Japan, on a gamma-cyclodextrin carrier (25% deep sea water solids, 75% carrier). Magnesium-led mineral profile; classified as a food in Japan
Form
White powder, no off-odour or foreign matter; water activity Aw 0.5 or below. Documented use: taste and odour masking in powdered drinks
Shelf life
2 years from the date of manufacture. Use promptly after opening
Packing
10 kg per box. MOQ 10 kg
Lead time
Ships from Japan 1-1.5 weeks after payment
Terms
100% prepayment by SWIFT or Stripe. Larger orders quoted by volume; freight quoted on request
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

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Process

How it is made

Deep sea water is seawater from below about 200 m, beneath the reach of sunlight. The water for this powder is drawn off Okinawa, desalinated and combined with a gamma-cyclodextrin carrier at 25% deep sea water solids to 75% carrier. Final manufacture takes place in Okinawa Prefecture, Japan.

The producer describes the raw water as stable at 8-9 °C all year, low in microorganisms and environmental contaminants, and rich in minerals. Deep water of this kind circulates through the world's oceans over roughly 2,000 years. After desalination, magnesium is the leading mineral in the finished powder, followed by sodium and potassium.

Deep-sea intake

Step 1 · below 200 m

Seawater drawn off Okinawa, 8-9 °C all year

Desalination

Step 2 · desalinated

Deep sea water and nigari form the mineral fraction

Carrier blending

Step 3 · 25.0 / 75.0

Deep sea water solids with gamma-cyclodextrin (corn, USA)

Powder

Step 4 · Aw max. 0.5

White powder, no off-odour, no foreign matter

Quality check

Step 5 · max. 3,000 CFU/g

Total plate count; coliforms negative

Packing

Step 6 · 10 kg per box

Final manufacture in Okinawa Prefecture, Japan

Specification

Specification at a glance

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

Identity and composition

  • What it is: deep sea water powder: desalinated deep sea water on a gamma-cyclodextrin carrier
  • Composition: desalinated deep sea water 25.0% (solids basis), gamma-cyclodextrin 75.0%
  • Source materials: deep sea water and nigari (Okinawa, Japan); corn for the carrier (USA)
  • Processing: deep sea water component in Okinawa, Japan; carrier made in the USA
  • Final manufacture: Japan (Okinawa Prefecture)
  • Category in Japan: food
  • Appearance: white powder, no off-odour, no foreign matter (sensory evaluation)

Process and peptide profile

  • Source water: seawater from below 200 m off Okinawa, beneath the reach of sunlight; 8-9 °C all year (producer data)
  • Process: intake, desalination, blending with gamma-cyclodextrin at 25.0 / 75.0 (solids basis), powder, packing in 10 kg boxes
  • Mineral profile, typical per 100 g: magnesium 2,890 mg, sodium 958 mg, potassium 689 mg, calcium 4 mg, zinc 0.02 mg
  • Magnesium per gram: about 28.9 mg (typical value)
  • Not detected: phosphorus (below 1 mg/100 g), iron (below 0.1 mg/100 g), copper (below 0.1 mg/100 g), manganese (below 0.02 mg/100 g), molybdenum (below 0.1 mg/100 g), selenium (below 0.1 µg/g), chromium (below 0.5 µg/g)

Analytical specification

  • Appearance: white powder; no off-odour, no foreign matter (sensory evaluation)
  • Water activity: Aw 0.5 or below (water activity meter)
  • Magnesium, sodium, calcium, zinc, phosphorus, iron, copper, manganese: ICP-OES
  • Potassium: atomic absorption spectrophotometry
  • Selenium, molybdenum, chromium: ICP-MS
  • Mineral values: typical values from the producer's mineral test report; your lot's CoA governs

Contaminants, microbiology and safety

  • Total plate count: not more than 3,000 CFU/g (standard agar plate method)
  • Coliforms: negative (BGLB medium method)
  • Allergens: not applicable for either component
  • BSE: none
  • GMO: not applicable to the deep sea water component; gamma-cyclodextrin carrier from corn, GMO status not segregated

Shelf life, storage and packing

  • Shelf life: 2 years from the date of manufacture
  • After opening: use promptly
  • Packing: 10 kg per box
  • MOQ: 10 kg (one box)
  • Documents: quality specification and mineral test report before you order; lot CoA on request
  • Samples: free 50 g samples on request for registered companies
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.

Is a corn-derived carrier with non-segregated GMO status acceptable for your label?

The carrier is 75% of the powder: gamma-cyclodextrin from US corn, GMO status not segregated. Brands that need a non-GMO or organic claim should settle this before sampling.

Is the powder there to mask taste or to deliver magnesium?

Masking in powdered drinks is the documented use. At about 29 mg of magnesium per gram, a magnesium amount on the label sets the inclusion in grams: 150 mg of magnesium takes about 5.2 g of powder. Check taste and blend at that level on the sample.

Which contaminant tests does your import file need?

The producer specification covers microbiology and water activity, and the mineral test report covers 12 elements. If your market asks for lead, arsenic, cadmium or mercury per lot, tell us before you order and we confirm what can be provided for your lot.

Do you need halal certification?

Some markets, including the UAE, require halal certification for supplements. Raise it at the start so the documents are checked before you commit to a formula.

How will your market classify gamma-cyclodextrin?

In the US, gamma-cyclodextrin is the subject of an FDA GRAS notice for use as a carrier and formulation aid. Other markets classify it under their own food rules, so confirm the status with your regulatory team.

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.

Deep Sea Water Powder: Okinawa Deep Sea Water Minerals in a Dry, Drink-Ready Format

Deep Sea Water Powder brings minerals from Japanese deep sea water into a white powder for dry formulations. The deep sea water is drawn off Okinawa, desalinated and combined with gamma-cyclodextrin, so the minerals arrive as a powder rather than as a liquid concentrate.

Where it fits

The producer's documented application is masking taste and odour in powdered drinks, such as aojiru (Japanese green vegetable drinks) and protein powders. The carrier makes up three quarters of the powder, and cyclodextrins are used in foods to reduce bitter and astringent notes (see the guide below).

The same powder carries a magnesium-led mineral profile with sodium and potassium. The deep sea water origin gives a finished product a clear source story, and the mineral analysis gives the numbers behind it.

How formulators work with it

  • Taste masking in drink powders: the documented use; set the level with your own sensory panel on the sample.
  • Mineral contribution: about 29 mg of magnesium per gram of powder, so a magnesium target on the label translates directly into grams per serving.
  • Dry premixes: a dry powder with water activity specified at 0.5 or below, for powdered drinks and stick packs.

It is not a high-potency magnesium salt. At 2.89% magnesium, it is chosen for format, taste and origin rather than to reach a large magnesium dose in a small capsule.

Related ingredients

For green drink formulations, see Organic Ashitaba Powder. For a plant-based mineral, see Sesame Mineral Powder (Plant-Based Calcium).

To discuss volume or your application, or to request the specification or a sample, use the request form on this page.

What Is in Deep Sea Water Powder: Components Explained

Deep sea water

Deep sea water is seawater from below about 200 m, where sunlight no longer reaches. Its physical and chemical properties differ from those of surface water: it stays cold and stable in temperature, carries few microorganisms and holds a wide range of dissolved minerals. Deep water moves slowly through the world's oceans; the producer describes this circulation as taking about 2,000 years.

The water used for this powder is drawn off Okinawa, Japan. The producer reports a stable temperature of 8-9 °C throughout the year.

Desalination and nigari

Seawater is mostly sodium chloride, and desalination removes salt. The specification lists deep sea water and nigari as the source materials of the mineral fraction. Nigari, known in English as bittern, is the magnesium-rich liquid that remains after salt crystallises out of seawater; in Japan it is used to set tofu.

In the finished powder, magnesium is the leading mineral at 2,890 mg per 100 g, ahead of sodium (958 mg) and potassium (689 mg): about three parts magnesium to one part sodium.

Magnesium

Magnesium is an abundant mineral in the body and a cofactor in more than 300 enzyme systems. An adult body contains about 25 g of magnesium, 50-60% of it in bone (NIH Office of Dietary Supplements, fact sheet updated January 2026). The recommended intake for adults is 310-420 mg per day depending on age and sex, and the US Daily Value for magnesium is 420 mg.

For a formulator the numbers translate simply: 1 g of this powder carries about 28.9 mg of magnesium (typical value), so 1.5 g carries about 43 mg, roughly 10% of the US Daily Value. Whether a label may state a magnesium content depends on the rules of your market.

Gamma-cyclodextrin, the carrier

Cyclodextrins are ring-shaped molecules made from starch by an enzyme, cyclodextrin glycosyltransferase. The three common forms are alpha-, beta- and gamma-cyclodextrin; gamma-cyclodextrin has the largest internal cavity and the highest water solubility of the three (Applied Microbiology and Biotechnology, 2007). In this powder, the gamma-cyclodextrin is made from corn in the USA.

The ring's cavity can hold another molecule inside it, forming what chemists call an inclusion complex. A review of cyclodextrins in foods and drugs describes how bitter and astringent compounds held in such complexes cannot react with the taste buds, which is why cyclodextrins are used to reduce bitter tastes in foods and beverages (European Journal of Pharmaceutics and Biopharmaceutics, 2005). This is the chemistry behind the producer's documented use of the powder for taste and odour masking in powdered drinks.

In the United States, gamma-cyclodextrin is the subject of FDA GRAS Notice No. 46, for use as a stabilizer, emulsifier, carrier and formulation aid; FDA responded in 2000 that it had no questions (FDA GRAS Notice Inventory). The notice covers the uses described in it, so check your own application against it.

Glossary

  • Water activity (Aw): a measure, from 0 to 1, of how much of the water in a product is free to support microbial growth or chemical change.
  • Solids basis: a share calculated on dry matter; 25.0% on a solids basis means the deep sea water minerals make up a quarter of the dry powder.
  • ICP-OES and ICP-MS: instrumental methods for measuring elements; ICP-MS reaches lower detection limits for trace elements.
  • CFU: colony-forming units, the unit for microbial counts, stated per gram.

The figures on this page describe composition and quality. We make no health claims for this ingredient.

FAQ

Before you order

What is Deep Sea Water Powder made of?

It is 25.0% desalinated deep sea water solids and 75.0% gamma-cyclodextrin. The deep sea water is drawn off Okinawa, Japan, and the source materials of its mineral fraction are deep sea water and nigari; the gamma-cyclodextrin carrier is made from corn in the USA. Final manufacture is in Okinawa Prefecture, and the product is classified as a food in Japan.

How much magnesium does it contain, and what else is in the mineral profile?

Typical values per 100 g are magnesium 2,890 mg, sodium 958 mg, potassium 689 mg, calcium 4 mg and zinc 0.02 mg, which is about 28.9 mg of magnesium per gram. Phosphorus, iron, copper, manganese, selenium, molybdenum and chromium were not detected. The values come from the producer's mineral test report (ICP-OES, atomic absorption and ICP-MS); your lot's CoA governs.

What is it used for in formulations?

The documented application is masking taste and odour in powdered drinks such as green vegetable drinks (aojiru) and protein powders. It also adds magnesium, sodium and potassium: at about 28.9 mg of magnesium per gram, a target of 150 mg of magnesium per serving needs about 5.2 g of powder. Other formats and inclusion levels are for your team to validate on the sample.

What is the allergen, GMO and BSE status?

Allergens are not applicable for either component, and BSE status is none. GMO status does not apply to the deep sea water component; the gamma-cyclodextrin carrier is made from US corn with GMO status not segregated, so the powder does not suit non-GMO or organic claims. The source materials listed in the specification are deep sea water, nigari and corn.

What are the MOQ, price, packing and shipping terms?

The minimum order is 10 kg, one box, at 190 USD/kg; larger orders are quoted by volume. Shelf life is 2 years from the date of manufacture. Orders ship from Japan 1-1.5 weeks after payment, freight is quoted on request, and payment is 100% prepayment by SWIFT or Stripe. Free 50 g samples are available for registered companies developing a product.
Deep Sea Water Powder

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190 USD/kg
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Deep Sea Water Powder

A white mineral powder made from desalinated deep sea water drawn off Okinawa, Japan, on a gamma-cyclodextrin carrier: 25% deep sea water solids, 75% carrier. Magnesium leads the mineral profile at 2,890 mg per 100 g, about 29 mg per gram. The documented application is masking taste and odour in powdered drinks such as green vegetable and protein mixes.
Request specs
CATEGORY
Marine mineral powder
MOQ
10 kg
MOQ price
190 USD/kg

Deep Sea Water Powder: Okinawa Deep Sea Water Minerals in a Dry, Drink-Ready Format

Deep Sea Water Powder brings minerals from Japanese deep sea water into a white powder for dry formulations. The deep sea water is drawn off Okinawa, desalinated and combined with gamma-cyclodextrin, so the minerals arrive as a powder rather than as a liquid concentrate.

Where it fits

The producer's documented application is masking taste and odour in powdered drinks, such as aojiru (Japanese green vegetable drinks) and protein powders. The carrier makes up three quarters of the powder, and cyclodextrins are used in foods to reduce bitter and astringent notes (see the guide below).

The same powder carries a magnesium-led mineral profile with sodium and potassium. The deep sea water origin gives a finished product a clear source story, and the mineral analysis gives the numbers behind it.

How formulators work with it

  • Taste masking in drink powders: the documented use; set the level with your own sensory panel on the sample.
  • Mineral contribution: about 29 mg of magnesium per gram of powder, so a magnesium target on the label translates directly into grams per serving.
  • Dry premixes: a dry powder with water activity specified at 0.5 or below, for powdered drinks and stick packs.

It is not a high-potency magnesium salt. At 2.89% magnesium, it is chosen for format, taste and origin rather than to reach a large magnesium dose in a small capsule.

Related ingredients

For green drink formulations, see Organic Ashitaba Powder. For a plant-based mineral, see Sesame Mineral Powder (Plant-Based Calcium).

To discuss volume or your application, or to request the specification or a sample, use the request form on this page.

Price and documents

Request a price, specification or sample

What Is in Deep Sea Water Powder: Components Explained

Deep sea water

Deep sea water is seawater from below about 200 m, where sunlight no longer reaches. Its physical and chemical properties differ from those of surface water: it stays cold and stable in temperature, carries few microorganisms and holds a wide range of dissolved minerals. Deep water moves slowly through the world's oceans; the producer describes this circulation as taking about 2,000 years.

The water used for this powder is drawn off Okinawa, Japan. The producer reports a stable temperature of 8-9 °C throughout the year.

Desalination and nigari

Seawater is mostly sodium chloride, and desalination removes salt. The specification lists deep sea water and nigari as the source materials of the mineral fraction. Nigari, known in English as bittern, is the magnesium-rich liquid that remains after salt crystallises out of seawater; in Japan it is used to set tofu.

In the finished powder, magnesium is the leading mineral at 2,890 mg per 100 g, ahead of sodium (958 mg) and potassium (689 mg): about three parts magnesium to one part sodium.

Magnesium

Magnesium is an abundant mineral in the body and a cofactor in more than 300 enzyme systems. An adult body contains about 25 g of magnesium, 50-60% of it in bone (NIH Office of Dietary Supplements, fact sheet updated January 2026). The recommended intake for adults is 310-420 mg per day depending on age and sex, and the US Daily Value for magnesium is 420 mg.

For a formulator the numbers translate simply: 1 g of this powder carries about 28.9 mg of magnesium (typical value), so 1.5 g carries about 43 mg, roughly 10% of the US Daily Value. Whether a label may state a magnesium content depends on the rules of your market.

Gamma-cyclodextrin, the carrier

Cyclodextrins are ring-shaped molecules made from starch by an enzyme, cyclodextrin glycosyltransferase. The three common forms are alpha-, beta- and gamma-cyclodextrin; gamma-cyclodextrin has the largest internal cavity and the highest water solubility of the three (Applied Microbiology and Biotechnology, 2007). In this powder, the gamma-cyclodextrin is made from corn in the USA.

The ring's cavity can hold another molecule inside it, forming what chemists call an inclusion complex. A review of cyclodextrins in foods and drugs describes how bitter and astringent compounds held in such complexes cannot react with the taste buds, which is why cyclodextrins are used to reduce bitter tastes in foods and beverages (European Journal of Pharmaceutics and Biopharmaceutics, 2005). This is the chemistry behind the producer's documented use of the powder for taste and odour masking in powdered drinks.

In the United States, gamma-cyclodextrin is the subject of FDA GRAS Notice No. 46, for use as a stabilizer, emulsifier, carrier and formulation aid; FDA responded in 2000 that it had no questions (FDA GRAS Notice Inventory). The notice covers the uses described in it, so check your own application against it.

Glossary

  • Water activity (Aw): a measure, from 0 to 1, of how much of the water in a product is free to support microbial growth or chemical change.
  • Solids basis: a share calculated on dry matter; 25.0% on a solids basis means the deep sea water minerals make up a quarter of the dry powder.
  • ICP-OES and ICP-MS: instrumental methods for measuring elements; ICP-MS reaches lower detection limits for trace elements.
  • CFU: colony-forming units, the unit for microbial counts, stated per gram.

The figures on this page describe composition and quality. We make no health claims for this ingredient.

Deep Sea Water Powder
Got Questions? We've Got Answers

Frequently Asked Questions

  • What is Deep Sea Water Powder made of?

    It is 25.0% desalinated deep sea water solids and 75.0% gamma-cyclodextrin. The deep sea water is drawn off Okinawa, Japan, and the source materials of its mineral fraction are deep sea water and nigari; the gamma-cyclodextrin carrier is made from corn in the USA. Final manufacture is in Okinawa Prefecture, and the product is classified as a food in Japan.

  • How much magnesium does it contain, and what else is in the mineral profile?

    Typical values per 100 g are magnesium 2,890 mg, sodium 958 mg, potassium 689 mg, calcium 4 mg and zinc 0.02 mg, which is about 28.9 mg of magnesium per gram. Phosphorus, iron, copper, manganese, selenium, molybdenum and chromium were not detected. The values come from the producer's mineral test report (ICP-OES, atomic absorption and ICP-MS); your lot's CoA governs.

  • What is it used for in formulations?

    The documented application is masking taste and odour in powdered drinks such as green vegetable drinks (aojiru) and protein powders. It also adds magnesium, sodium and potassium: at about 28.9 mg of magnesium per gram, a target of 150 mg of magnesium per serving needs about 5.2 g of powder. Other formats and inclusion levels are for your team to validate on the sample.

  • What is the allergen, GMO and BSE status?

    Allergens are not applicable for either component, and BSE status is none. GMO status does not apply to the deep sea water component; the gamma-cyclodextrin carrier is made from US corn with GMO status not segregated, so the powder does not suit non-GMO or organic claims. The source materials listed in the specification are deep sea water, nigari and corn.

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