Landnutra's Pure Melatonin 99 Powder is a synthetic replicate of the body's endogenous melatonin, produced under strict cGMP conditions to achieve over 99% purity. Identical in molecular structure to naturally occurring melatonin, it integrates seamlessly into sleep-support formulations, nighttime skin repair products, and functional relaxation blends. No carriers, no additives-just a high-purity crystalline powder built for precision dosing and flexible delivery formats.

Product Specifications & Standards
We offer Melatonin compliant with the highest pharmacopeial standards:
Purity:≥ 99.0% (by HPLC)
Appearance:White to off-white crystalline powder
Melting Point:116°C - 120°C
Loss on Drying:≤ 0.5%
Residue on Ignition:≤ 0.1%
Heavy Metals (as Pb):≤ 10 ppm
Related Substances:Complies with USP monograph requirements.
Microbiological:Total Plate Count < 1000 cfu/g, Yeast & Mold < 100 cfu/g, absence ofE. coliandSalmonella.
Characteristics
High Purity & Potency:
Over 99% purity delivers consistent, predictable dosing batch after batch, minimizing variation in finished formulations.
cGMP Manufactured:
Produced in certified facilities with full process tracking-every step documented, every batch verified, no surprises.
Excellent Stability:
Stays fresh and effective when stored cool, dry, and protected from light; shelf life up to 3 years under recommended conditions.
High Solubility:
Disperses readily in ethanol and select organic solvents, enabling formulation across diverse delivery formats; limited aqueous solubility suits non-aqueous or co-solvent systems.
Versatile Application:
Fits into tablets, capsules, gummies, drops, and more-a flexible active ingredient for multiple product lines.
COA (Certificate of Analysis)
|
Test Item |
Specification |
Test Result |
Test Method |
|
Appearance |
White or almost white crystalline powder |
Conforms |
Visual |
|
Identification (HPLC) |
Complies with reference standard |
Complies |
USP |
|
Assay (Purity) |
≥ 99.0% |
99.5% |
HPLC |
|
Loss on Drying |
≤ 0.5% |
0.2% |
USP <731> |
|
Residue on Ignition |
≤ 0.1% |
0.05% |
USP <281> |
|
Heavy Metals |
≤ 10 ppm |
< 5 ppm |
ICP-MS |
|
Total Plate Count |
≤ 1000 cfu/g |
< 100 cfu/g |
USP <61> |
|
Yeast & Mold |
≤ 100 cfu/g |
< 10 cfu/g |
USP <61> |
|
E. Coli |
Absent |
Absent |
USP <62> |
|
Salmonella |
Absent |
Absent |
USP <62> |
our product advantages
| 1 | Bio-fermentation / Plant Extraction - Natural-origin raw material input for clean-label appeal |
| 2 | ≥99.5% Typical Purity – Select batches reach 99.9%, exceeding standard pharmacopeial thresholds |
| 3 | Heavy Metals & Pesticides – Routinely tested to "Not Detected" levels |
| 4 | Customization Services – Water-soluble variants, micronized particle sizes, and compounded formulations available |
| 5 | Multi-Pharmacopeia Compliance – Meets USP, EP, BP standards and the Directory of Raw Materials for Health Foods |
Production Process
High-purity 99% melatonin powder made via strict synthesis, recrystallization and full testing.

Product Benefits
Sleep Onset Support
Regulates circadian rhythm signaling to promote sleep onset and restorative sleep, with a pharmacokinetic profile designed to minimize next-morning residual effects.
Formulation Flexibility
Compatible across tablets, capsules, gummies, oral drops, and functional foods, enabling seamless integration into diverse supplement portfolios.
Nighttime Skin Care Synergy
Incorporated into cosmeceutical nighttime formulas, melatonin supports overnight skin repair and counteracts oxidative stress from daily environmental exposure.


Product Applications
Dietary Supplements:
Sleep-support tablets, capsules, gummies, and oral sprays
Functional Foods & Beverages:
Nighttime relaxation drinks, calming tea blends, unwind snack formats
Cosmetics & Cosmeceuticals:
Overnight creams, repair serums, and protective night masks
Why Choose Our Melatonin Powder?
Company Strength
Landnutra controls the entire melatonin supply chain from raw material sourcing through final cGMP manufacturing, with in-house R&D and QC labs overseeing every batch. Our melatonin pure powder routinely exceeds the 99% purity specification, with heavy metals and pesticide residues consistently tested to "Not Detected" levels-backed by full analytical documentation for every shipment.
Product Advantage
Beyond standard powder, we offer differentiated customization options including water-soluble premixes and micronized grades for improved dispersion in gummies, drops, and functional beverages. Full regulatory support-including FDA Drug Master File reference, ISO 9001, and HACCP certification-keeps your product development and cross-border shipping on track.


Export & Regulatory Certificates
We hold and provide all necessary documentation for international trade:
FDA Drug Master File (DMF) Reference
ISO 9001:2015 Certificate
HACCP Certificate
Certificate of Analysis (COA) for every batch
Halal & Kosher Certificates (upon request)
All certificates and batch-specific dossiers are available on request. For wholesale melatonin pure powder quotations, sample requests, or technical inquiries, contact Landnutra's support team at wangjing@landnutra.com or WhatsApp +86 18092657549-we respond within one business day.

FAQ
Q: Is your melatonin natural or synthetic?
A: Landnutra supplies synthetic melatonin to guarantee high purity, batch-to-batch consistency, and freedom from animal-derived components or allergens. It is bioidentical to endogenous melatonin.
Q: How should I store it, and how long does Melatonin Powder last?
A: Keep sealed in a cool (below 25°C / 77°F), dry, light-protected environment. Shelf life is up to 3 years under recommended storage conditions.
Q: Can you customize the particle size?
A: Yes - micronization is available to improve powder dispersibility and dissolution for complex formulations.
Q: Do you make custom blends with melatonin?
A: Yes, Landnutra can formulate custom blends combining melatonin with complementary ingredients like magnesium, L-theanine, or GABA to create targeted sleep-support solutions.
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