Product Introduction

D-Aspartic Acid is the D-isomer of the amino acid aspartic acid. While L-aspartic acid is incorporated into proteins, D-aspartic acid is primarily found in the neuroendocrine system, playing a unique and important role in hormone synthesis and regulation.
D-Aspartic Acid is naturally present in the pituitary gland, testes, and hypothalamus. It is directly involved in the synthesis and release of luteinizing hormone and follicle-stimulating hormone, which in turn signal the testes to produce testosterone.


Product Specification
|
Ratio/Assay |
Test Method |
Powder Color |
| 98.0% ~ 102.0%Minimum Assay | HPLC | White to Off-White Crystalline Powder |
Product Analysis
|
Item |
Specification |
|
Product Name |
D-Aspartic Acid |
|
Appearance |
White to Off-White Crystalline Powder |
| Loss on drying(%) |
≤ 0.5% |
| Residue on ignition(%) |
≤ 0.40% |
| Specific rotation(°) | -24.0° ~ -26.0° |
|
Heavy Metals |
≤ 10ppm |
|
Lead (Pb) |
≤ 3 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) Supports healthy testosterone levels in men
(2) Promotes luteinizing hormone (LH) and FSH release
(3) Enhances libido and sexual function
(4) Supports male fertility and sperm quality
(5) May improve athletic performance and muscle recovery
Application:
(1) Testosterone Support Supplements: Capsules, tablets, powders
(2) Male Fertility Products: Sperm health and reproductive support
(3) Sports Nutrition: Pre-workout and recovery formulas
(4) Bodybuilding: Natural anabolic support
(5) Male Vitality & Libido Formulas: Combined with other testosterone boosters

Product Qualifications
The following is the pesticide residue and heavy metal test report of D-Aspartic Acid
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.
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