Product Introduction

Melatonin is a naturally occurring hormone produced by the pineal gland in the brain. It plays a fundamental role in regulating the body's circadian rhythm, signaling the body when it is time to sleep and wake up.
Melatonin production is influenced by light exposure: levels rise in the evening, peak during the night, and decrease in the morning. Factors such as aging, jet lag, shift work, and excessive blue light exposure can disrupt natural melatonin production.


Supplemental Melatonin is widely used to support healthy sleep patterns, reduce jet lag symptoms, and promote relaxation without the risk of dependency associated with traditional sleep aids.
Product Specification
|
Ratio/Assay |
Test Method |
Powder Color |
| 99% Minimum | HPLC | White to Off-White Powder |
Product Analysis
|
Item |
Specification |
|
Product Name |
Melatonin |
| Odor | Characteristic |
| Taste | Characteristic |
|
Appearance |
White to Off-White Powder |
|
Moisture |
≤ 0.5% |
|
Ash |
≤ 0.5% |
|
Heavy Metals |
≤ 10ppm |
|
Lead (Pb) |
≤ 2 ppm |
|
Arsenic (As) |
≤ 2 ppm |
|
Mercury (Hg) |
≤ 0.1 ppm |
|
Cadmium (Cd) |
≤ 1 ppm |
|
Total Plate Count |
≤ 1,000 cfu/g |
|
Yeast & Mold |
≤ 100 cfu/g |
|
E. coli |
Negative |
|
Salmonella |
Negative |
|
Packaging |
25kg/drum or according to customer's requirements |
|
Shelf Life |
24 months |
|
Storage |
Store in a cool, dry place, keep away from strong light and heat. |
Product Function & Application
Function:
(1) Regulates the body's circadian rhythm and sleep-wake cycle
(2) Promotes faster sleep onset and improves sleep quality
(3) Helps reduce symptoms of jet lag and shift work disorder
(4) Acts as a powerful antioxidant, protecting cells from oxidative stress
(5) May support immune function and mood regulation
Application:
(1) Sleep support and insomnia relief supplement
(2) Jet lag recovery and travel wellness products
(3) Antioxidant and anti-aging formulations
(4) Mood support and stress management formulas
(5) Pediatric and geriatric sleep aids

Product Qualifications
The following is the pesticide residue and heavy metal test report of Melatonin
Our latest projects
Shanghai Jwell machinery Workshop co-operation projects

HPLC Spectrum

Pesticide Report

Heavy Metal Report
Why Choose US?
Changsha Heking Bio-tech Co.,Ltd. entered into the plant extraction industry in 2008 and was established in 2011.
At Heking, we specialize in producing high-quality plant extracts, providing natural solutions for a wide range of industries,
including pharmaceuticals, cosmetics, food and beverage, and dietary supplements.
- Customer Satisfaction:We are committed to providing high-quality services that exceed our customers' expectations.
- Competitive prices: We offer competitive prices for our services without compromising on quality. Our prices are transparent, and we don't believe in hidden charges or fees.
- One-stop service: We promise to provide you with the fastest reply, the best price, the best quality, and the most perfect after-sales service.
- Fast delivery time: We choose high-quality raw materials.We have Stable product inventory and mass production within 7 days.
- Factories and warehouses: Our headquarters is in China and we have two professional plant extract factories. Besides, we also have an office and a warehouse in Los Angeles, USA.
- Quality assurance: Internationally authorized third-party testing for the products you need. We are cGMP, FDA, FSSC22000, Halal, ISO9001, Kosher, Organics certified.

FSSC 22000

ISO 9001

USDA Organic

EU Organic

Halal

Vegan Su


Our office

Our factories



Deliver & Shipping
We accept international express - Fedex/DHL/UPS, air and sea, we can ship all over the world, even to some remote areas, such as remote areas of Russia, countries near the North Pole and Antarctic.
|
Cargo weight |
Packing |
Shipping method |
Lead-time |
|
5-50kg |
Below 5kg Use Foil bag; 5-50kg, Pack in paper-drums and two plastic-bags inside |
International express |
7-10days |
|
100-200kg |
25kg/drum,Pack in paper-drums and two plastic-bags inside |
Air shipping |
7-10days |
|
Over 500kg |
25KG/drum,Pack in paper-drums and two plastic-bags inside |
Sea shipping |
30-45days |

FAQ
Q1:Can I get some samples?
A:Yes, we can provide free samples, and you only need to pay the freight.
Q2:How to start orders or make payments?
A:After confirming your order, we will send you a proforma invoice with the bank information. The payment methods are as follows: Payment by T/T, Paypal, Check...
Q3:What's your MOQ?
A:Our MOQ is 1kg. But usually according to different products, the specific MOQ will vary.
Q4:What about the delivery time?
A: Within 7 days after receiving the payment.
Q5: Are there any discounts?
A: Different quantities have different discounts.
Q6: How do you handle quality complaints?
A: First, our quality control will reduce quality problems to close to zero. If there is indeed a quality problem caused by us, we will send you the goods for replacement or refund your loss free of charge.
Hot Tags: melatonin, China melatonin manufacturers, suppliers, factory
