Wholesome in bulk™ Gymnema Sylvestre Leaf Extract Powder
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Bulk Gymnema Sylvestre Leaf Extract for Supplement Manufacturing
Gymnema sylvestre extract is a dry powder made from the leaves of Gymnema sylvestre, a woody climbing vine in the dogbane family (Apocynaceae). It is usually standardized to gymnemic acids at 25% or 75%, most often measured by a gravimetric method. We supply it in bulk to supplement brands, contract manufacturers, and formulators.
A leaf extract with a named marker group and two common grades
Gymnema sylvestre extract is simple to specify. It has a named marker group, two familiar grades, and an HPTLC identity test. That makes lot to lot comparison easy for buyers and quality teams.
Named marker compounds
Gymnemic acids are a family of triterpene saponins found in the leaf. Specifications state a minimum for the whole group, which gives you a measurable target for every lot.
Two familiar grades
The 25% gymnemic acid grade is the most widely listed. A 75% grade is also traded for formulas that need a smaller fill weight.
Identity you can check
An HPTLC fingerprint compared with a reference standard confirms that the leaf is Gymnema sylvestre. Published spec sheets list it as the identity test.
Ethanol and water extraction
One published spec uses 75% ethanol and 25% water, with a native ratio of 5:1. The liquid is filtered and dried to a powder.
Fine, free flowing powder
Spec sheets call for a fine brown powder that passes an 80 mesh screen. Bulk density runs about 0.40 to 0.60 g/mL, which suits capsule filling and tableting.
A strong bitter taste
Gymnemic acids taste bitter, and the extract carries that taste. Capsules and tablets handle it well, while drink mixes need taste trials.
Where formulators use gymnema sylvestre extract
This extract fits measured formats where fill weight and serving size are controlled, including:
- Capsules
- Compressed tablets
- Single ingredient powders
- Multiple ingredient botanical blends
- Stick packs and sachets
- Powdered drink mixes, after taste trials
- Tea blends, using leaf powder
- Private label programs
Plan fill weights from the confirmed assay on each COA. A 25% grade and a 75% grade are not interchangeable gram for gram, so recalculate your serving math whenever you change grades.
What to check before you buy gymnema sylvestre extract
Two powders sold as gymnema extract can differ in assay method, carrier, solvent, and plant part. Review these points together, and ask for lot documents before you approve a supplier.
Species and plant part
Confirm Gymnema sylvestre leaf on both the specification and the certificate of analysis (COA). Plain leaf powder and leaf extract are sold under similar names, so check which one you are buying.
Assay method
Ask whether gymnemic acids are measured by a gravimetric method or by HPLC. HPLC and HPTLC methods usually report gymnemagenin, the shared core of the gymnemic acids, so the two numbers do not match.
Carrier and its source
Some 25% grades contain up to 25% maltodextrin to reach the stated assay. Ask for the carrier's name, percentage, and source, such as corn.
Solvent and ratio
Confirm the extraction solvent and the native extract ratio. Ethanol and water at about 5:1 is a common pairing, and residual ethanol should appear on the COA.
Contaminant limits
Check heavy metals by ICP-MS, microbial limits by USP methods, and pesticide residues. Compare each limit with your own finished product specification.
Origin and harvest
Ask for the country of origin and whether the leaf was cultivated or wild collected. Some published spec sheets name cultivated leaf from China.
Label math: If your label lists gymnemic acids per serving, work from the measured assay on each COA and the method behind it. A carrier adds to the powder weight but not to the assay.
Typical specification for gymnema sylvestre extract
These values reflect the common 25% gymnemic acid grade. Final figures come from the specification sheet and COA for your lot. NLT means not less than, and NMT means not more than.
| Parameter | Specification | Method |
|---|---|---|
| Botanical source | Gymnema sylvestre, leaf | HPTLC fingerprint |
| Appearance | Fine brown to greenish brown powder | Visual |
| Odor and taste | Characteristic odor, bitter taste | Organoleptic |
| Gymnemic acids | NLT 25.0%, or NLT 75.0% for the high grade | Gravimetric |
| Extraction solvent | Ethanol and water | Supplier declaration |
| Extract ratio | 5:1 | Supplier declaration |
| Carrier | None, or maltodextrin with percentage and source | Supplier declaration |
| Particle size | 100% through 80 mesh | USP <786> |
| Loss on drying | NMT 5.0% | USP <731> |
| Total ash | NMT 10.0% | USP <561> or Ph. Eur. 2.4.16 |
| Bulk density | 0.40 to 0.60 g/mL | USP <616> |
| Lead | NMT 3.0 ppm | ICP-MS |
| Arsenic | NMT 1.0 ppm | ICP-MS |
| Cadmium | NMT 1.0 ppm | ICP-MS |
| Mercury | NMT 0.1 ppm | ICP-MS |
| Total aerobic count | NMT 10,000 cfu/g | USP <2021> |
| Yeast and mold | NMT 1,000 cfu/g | USP <2021> |
| E. coli and Salmonella | Negative in 10 g and 25 g | USP <2022> |
| Pesticide residues | Meets USP <561> | GC-MS and LC-MS |
| Shelf life | 24 months, unopened | Stability data |
Storage and handling for bulk gymnema extract
Botanical extracts hold their quality when they stay sealed, dry, and out of light. Published gymnema specs ask for a well closed container kept away from moisture, light, and oxygen.
Keep it sealed
Close the inner liner after each use and press out the air. Extract powders pick up moisture from the air and can cake when left open.
Store cool and dry
Keep bags off the floor in a dry room, away from heat sources. Follow the temperature range on the spec sheet.
Keep away from light
Leave the powder in its original opaque packaging. Light and heat can shift color and assay over time.
Rotate stock
Record the lot number and retest date for each bag. Send older lots to production first.
Gymnema sylvestre extract buyer FAQ
Quick answers to the questions procurement and quality teams ask most.
What is gymnema sylvestre extract standardized to?
It is standardized to gymnemic acids, usually at 25% or 75%. Most suppliers measure the grade by a gravimetric method. Check the method on the COA, because a few listings use HPLC instead.
What is the difference between 25% and 75% gymnemic acids?
The 75% grade is three times as concentrated, so you need about one third as much powder for the same gymnemic acid amount. The 25% grade is the most widely listed and may contain a carrier such as maltodextrin. Choose based on your label target, capsule size, and cost per finished serving.
Is a gravimetric result the same as an HPLC result?
No. A gravimetric method weighs a gymnemic acid fraction separated from the extract. HPLC and HPTLC methods usually break the gymnemic acids down to their shared core, gymnemagenin, and measure that. Compare grades only when the methods match.
Is gymnema leaf powder the same as gymnema extract?
No. Leaf powder is dried, milled leaf. Extract is made by soaking the leaf in a solvent and drying the liquid into a concentrated powder with a stated assay. Extract is the usual choice when a label needs a standardized amount.
How is gymnema sylvestre identity confirmed?
Identity is confirmed with an HPTLC fingerprint compared against a reference standard. Ask for the identity result on each COA, along with the gymnemic acid assay and its method.
What does gymnema extract taste like?
It tastes bitter. Gymnemic acids have a strong bitter taste of their own, so plan taste trials before you use the extract in drink mixes or chewables. Capsules and tablets avoid the issue.
What documents can I get with an order?
A certificate of analysis (COA) and a specification sheet ship with every order. An allergen statement and a safety data sheet may also be available, depending on the lot in inventory. Contact us to request them.
Can I get a sample before a bulk order?
You can request one by choosing sample options on the quote form. We will confirm availability, size, and timing.
Request a quote for bulk gymnema sylvestre extract
Tell us your grade, quantity, and timing. We will reply with current pricing. Select testing documents and sample options on the quote form.
Order Gymnema Sylvestre ExtractBulk orders: Choose a pack size above, or use the quote form for larger volumes, testing documents, and sample options. We serve supplement brands, contract manufacturers, product developers, and formulators.
This bulk ingredient is sold for further manufacturing and formulation. The information on this page describes the ingredient and how commercial buyers evaluate it. It is not medical advice. Each finished product brand is responsible for its own labeling and product claims.
