What is Physta®? Standardization, COA, and Tongkat Ali

Quick facts about Physta®

This article uses batch TA 2506105 as a consistent calculation example. Batch-specific
values and dates apply to that particular production run and should not be transferred to other
batches. The current batch and all published analysis certificates are available in our
COA archive for Tongkat Ali
Physta®.

What is Physta®?

Physta® is the name of a specific extract, not of the plant species.
Tongkat Ali is the common name for
Eurycoma longifolia, while Physta® denotes a trademarked raw material that
the manufacturer produces from the plant’s root.

Biotropics Malaysia describes Physta® as a proprietary, water-soluble, and standardized
extract from Malaysian Eurycoma longifolia root. The company states that the product
complies with the Malaysian standard MS 2409:2011.

The information comes from
the manufacturer’s technical presentation of Physta®
and should be understood as manufacturer information.

The distinction between plant name and product name has practical significance. A study, specification,
or analysis that applies to Physta® does not automatically apply to ordinary Tongkat Ali powder or
to another extract. An analysis of a specific batch also describes only the
production run the document is linked to.

How does water extraction work?

During water extraction, water is used to transfer water-soluble components from
the root material to an extract solution. The water is then removed, and the extract is converted to
powder. The manufacturer describes Physta® as a freeze-dried water extract.

The process differs from simple grinding. When a producer manufactures root powder, the
dried root is ground, and both soluble and insoluble parts of the plant material are included. During
extraction, the solvent instead determines which components are transferred. The extract thus acquires
a different chemical profile than the original root powder.

Biotropics refers to patents for parts of its extraction technology. A US patent
describes a water extract from Eurycoma longifolia root and specifies glycosaponins
and peptide fractions as parts of the extract’s composition.

Patents describe technical solutions and rights claims. They do not function as independent
evidence of medical efficacy or regulatory approval. The patent information is available in the
Google Patents database.

What does standardization of Physta® mean?

The producer establishes specifications for selected properties and controls each
production batch against these limits. The purpose is to make analysis values more comparable between
batches.

Standardization does not automatically mean that an extract is stronger, safer, or better
than other raw materials. The assessment requires knowing which markers are analyzed, which
ranges are used, which analysis method the laboratory applies, and whether the documentation
applies to the correct batch.

Physta® is standardized against several analysis parameters instead of a single marker content.
The manufacturer highlights eurycomanone, total protein fraction, total polysaccharide content, and
glycosaponins. The analysis certificate for Aromexperten’s batches reports the same four groups.

Which substances and analytical markers are standardized in Physta®?

Eurycomanone

Eurycomanone is a quassinoid often used as a chemical marker for
Eurycoma longifolia extracts. The laboratory uses the marker to verify that
the content is within the product’s specification. The marker does not describe the entire extract’s
composition.

Total protein fraction

The analysis certificate reports total protein as a separate parameter. The term indicates a
combined analysis value and does not identify each individual protein or each peptide. Total
protein should thus not be equated with a complete molecular mapping.

Total polysaccharide content

Polysaccharides are reported as a total content. The value summarizes the result from the selected
analysis method. Here too, one must distinguish between a total value and identification of
individual molecules.

Glycosaponins

Glycosaponins constitute another standardization parameter. The analysis shows whether the batch
meets the specified minimum content. The value alone does not indicate anything about the product’s
complete chemical profile, presence of contaminants, or regulatory status.

What does a Certificate of Analysis, COA, show?

A batch-specific Certificate of Analysis shows how an individual production run relates
to the product’s defined specifications. Below, batch TA 2506105 is used as a
concrete example.

Aromexperten has published a
Certificate of Analysis for batch TA 2506105.
The certificate states a manufacturing date of June 30, 2025, and an expiry date of June 29, 2028. The document
specifies Malaysia as the country of origin, root as the plant part used, and water as the extraction method.

The certificate also reports heavy metals. The results are stated as lead below 1.00 ppm,
mercury below 0.05 ppm, arsenic below 1.00 ppm, and cadmium below 0.20 ppm. The asterisk in
the document indicates that the laboratory did not detect the substance above the specified reporting level.

Microbiological parameters are reported separately. Total aerobic count and yeast and mold are
below 10 cfu/g. The document indicates absence of Salmonella, Escherichia coli
and Staphylococcus aureus in the sample quantities the specification describes.

All published analysis certificates, including that for the current batch, are collected in our
COA archive for Tongkat Ali
Physta®. There you can compare how the values have varied between production runs.

Physta® compared to root powder and ratio extracts

The table shows why a high ratio, for example 100:1, does not automatically provide more useful
information than a clear specification. The ratio indication normally describes the relationship between
original raw material and extract, but does not necessarily identify markers, analysis methods,
or purity data.

A more detailed review of the differences between the raw material forms is available in our guide on
Tongkat Ali powder and
extracts.

How is Physta® used in research?

Researchers have used Physta® in several human studies. A randomized, double-blind, and
placebo-controlled study from 2021 investigated a standardized water extract named
Physta® in 105 men aged 50–70 over twelve weeks.

The study reports product name, study design, and groups. The raw material identity thus becomes
clearer than in research that only describes the material as “Tongkat Ali extract.” The study
is available in
Food & Nutrition Research.

An older randomized study describes Physta® as a freeze-dried water extract and reports
the product’s use during a specific trial period. The study is openly available via
PubMed Central.

The studies primarily show why product identity matters. Results from Physta® do not
automatically apply to root powder, to other standardizations, or to products of unknown
origin.

When evaluating research, one must examine participant numbers, study duration, primary outcomes,
statistical analysis, funding, and any conflicts of interest.

This article does not review health effects in detail. The purpose is to explain what Physta® is
as a defined raw material and why correct product identity matters when interpreting research.

Does standardization mean that Physta® is approved as food in the EU?

No. Technical standardization, patents, and published studies do not constitute EU approval
as food.

In 2021, EFSA assessed a standardized water extract from Eurycoma longifolia root as a novel food. The panel considered that the data did not
establish the safety for the proposed use.

The product’s technical specification and its regulatory status are thus two separate matters.
EFSA’s complete opinion is available here:
Safety of Eurycoma longifolia root extract as a novel food.

Aromexperten presents Physta® as an ethnobotanical raw material, not as food, dietary supplement,
medicine, or animal feed. The product is not intended for consumption.

How to assess the documentation for a Physta® extract

The document must be matched against the actual product. A general data sheet can provide relevant
background, while a batch-specific COA provides direct information about the raw material you have in front of
you.

• Check that the document states the product name Physta®.
• Match the batch number against the product’s label or delivery documents.
• Check the manufacturing date and expiry date.
• Confirm botanical name, plant part, and country of origin.
• Check that the document specifies water as the extraction method.
• Compare each marker content with its specification.
• Review results for moisture content, heavy metals, and microorganisms.
• Read footnotes, reporting limits, and disclaimers.
• Check who issued the document and when it was signed.
• Request an explanation if results, method, or sampling are missing.

Quality should not be assessed based solely on eurycomanone or a high extract ratio. A
more complete assessment combines identity, process, analytical markers, physical values,
microbiology, heavy metals, traceability, and the origin of the documents.

Brief glossary

Physta®

A trademarked standardized water extract from the root of
Eurycoma longifolia.

Standardization

Control of selected parameters against defined specifications for each batch.

Eurycomanone

A quassinoid that laboratories often use as a chemical analysis marker.

COA

Certificate of Analysis, a document that reports specifications and results for a
raw material or batch.

ppm

Parts per million, a unit that laboratories often use for very low concentrations.

cfu/g

Colony-forming units per gram, a microbiological unit of measurement.

Mesh

A measure that describes particle size through sieving.

Summary: What is Physta®?

Physta® is a standardized water extract from Malaysian Eurycoma longifolia root.
The product name describes a specific extract and should not be used as a synonym for all
Tongkat Ali material.

For batch TA 2506105, the analysis certificate reported 0.87% eurycomanone, 35.4% total protein,
37.5% total polysaccharide, and 51.1% glycosaponin, in addition to moisture content, particle size,
heavy metals, and microbiological values. The values vary between batches within the specification,
and you can compare them in the
COA archive.

Standardization improves the ability to compare batches, but does not replace critical
review. Always check product identity, batch number, specifications, analysis methods,
the origin of the documents, and the product’s intended use.

Frequently Asked Questions about Physta®

What is Physta®?

Physta® is a trademarked and standardized water extract from the root of
Eurycoma longifolia, the plant often called Tongkat Ali.

Is Physta® the same as Tongkat Ali?

No. Tongkat Ali is a name for the plant, while Physta® is the name of a specific extract
from the plant’s root.

Which extraction method is used?

The producer uses water extraction. The analysis certificates explicitly state water as the
extraction method.

Which markers does the analysis certificate check?

The certificate reports eurycomanone, total protein, total polysaccharide, and glycosaponin.
In addition, moisture content, particle size, heavy metals, and microbiological parameters are reported.

What does 0.87% eurycomanone mean?

The result means that the analysis for batch TA 2506105 reported 0.87% eurycomanone, which
is within the certificate’s specification of 0.8–1.5%. Later batches have their own values within
the same range.

Is Physta® the same as a 100:1 extract?

Not necessarily. A ratio normally describes a raw material relationship, while Physta® uses
defined standardization parameters and batch-specific analysis.

Can Physta® studies be transferred to all Tongkat Ali products?

No. Raw material, extraction method, markers, and concentration may differ. Research results
must be linked to the product the study actually used.

Where can I see the current Physta® batch?

The current batch and all previous analysis certificates are available in our
COA archive for Tongkat Ali
Physta®.

Is Physta® intended for consumption at Aromexperten?

No. Aromexperten sells the product as an ethnobotanical raw material and states that it is not intended
for consumption.

Sources and method

The article distinguishes between batch-specific documentation, manufacturer information, patents,
published studies, and regulatory assessments. Exact batch values come from the published
analysis certificate for TA 2506105.

1. 
   Certificate of Analysis: Physta® Eurycoma longifolia Standardized Extract, batch TA 2506105.
   
2. 
   Aromexperten: analysis certificates for all published Physta® batches.
   
3. 
   Biotropics Malaysia: technical product information about Physta®.
   
   Manufacturer information.
4. 
   Google Patents: technical patent information about Eurycoma longifolia extract.
   
5. 
   Chinnappan et al.: randomized study of Physta® in older men.
   
6. 
   Udani et al.: study of a proprietary freeze-dried water extract of Eurycoma longifolia.
   
7. 
   EFSA: Safety of Eurycoma longifolia root extract as a novel food.