Formulated and produced in FranceIndependently tested for purity
Formulated and produced in France
Independently tested for purity

Pearl, studied.
The evidence in full.

One ingredient: pure pearl powder. Here is what our testing shows, and what the research says about nacre.

The Composition

Tested, not claimed.

Every batch of pure pearl powder is independently tested. Here is what that testing confirms:

Ca
Calcium
confirmed as natural marine aragonite
17
Amino acids
in the pearl protein
10
Trace minerals
naturally present in the pearl
0
Additives
no fillers or binders
Why Pearl Calcium

A calcium your body can use.

Pearl calcium is bound in aragonite, the same mineral form the Pinctada maxima oyster builds its shell from. One clinical study measured how well adults absorb it.

Explore The Science
2×

How much more efficiently pearl calcium was absorbed than standard calcium carbonate, in a clinical absorption study in adults.

Chen, Chang & Wu, Journal of Food Science, 2008 View on PubMed ↗

The Wider Science of Nacre

Pearl has interested scientists for decades.

Nacre is the material a pearl is made of, one of the toughest structures in nature. For decades, scientists have studied how it forms, how it works alongside living bone, and how its compounds behave in the body. Here is that research, in full.

Bone & mineralisation
01

Surgeons rebuilt areas of human jawbone using powdered nacre from the Pinctada maxima oyster, and found new bone had formed and integrated with it.

Atlan et al., C R Acad Sci III, 1997 PubMed 9183443 ↗ France
02

Nacre powder from the same Pinctada maxima oyster measurably increased new bone formation around implants in a study in pigs.

Leelatian, Chunhabundit et al., Molecules, 2022 View on PubMed Central ↗ Thailand
03

A preclinical safety study placed nacre powder within bone and found it was well tolerated and gradually replaced by newly formed bone.

Iandolo et al., BMJ Open Science, 2022 PubMed 36387954 ↗ France
04

A water-soluble nacre extract helped restore the mineralising activity of bone cells taken from osteoarthritic joints.

Brion et al., PLoS One, 2015 PubMed 26496825 ↗ France
05

A Queen’s University Belfast review names nacre among the marine materials studied for their potential in bone growth and repair.

Carson & Clarke, Marine Drugs, 2018 PubMed 30231464 ↗ United Kingdom
Composition & antioxidant activity
06

Pearl is mostly mineral, but it is the thread of protein within it that scientists find most interesting. This review maps those proteins and how they are studied.

Pei et al., Front Bioeng Biotechnol, 2021 View on PubMed Central ↗ China
07

Prized for a thousand years, pearl powder is now being examined under laboratory conditions. This review surveys how a material once valued for beauty came to interest biomedical science.

Loh et al., Materials (Basel), 2021 PubMed 34074019 ↗ Singapore & Australia
08

A placebo-controlled trial examined a protein-rich pearl powder for its effect on antioxidant status in participants.

Chiu et al., J Food Drug Anal, 2018 PubMed 29389568 ↗ Taiwan

The research above is independent academic work on pearl and nacre as a material. It describes the science of the material itself, not results from taking Naker.

Pure Pearl Powder

You’ve seen the research. Begin the ritual.

One ingredient, independently tested and studied for decades. Made to be taken daily.

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Formulated and produced in France · Independently tested for purity

Naker is a food supplement, not a medicine, and does not replace a varied, balanced diet. Results vary, and it is designed for consistent, long-term daily use.