Shaanxi LonierHerb Bio-Technology Co., Ltd is one of the most professional manufacturers and suppliers of l-isoleucine powder in China, featured by quality products and good price. Please rest assured to wholesale bulk natural l-isoleucine powder for sale here from our factory. Contact us for free sample.
1. Product Information
L-Isoleucine Powder is one of the essential amino acids for the human body and belongs to a type of aliphatic neutral amino acids. Soluble in water, slightly soluble in ethanol. It is an essential amino acid in human and animal diets and must be obtained from external foods. This amino acid is important for many biochemical reactions in the body, and mistakes in metabolism can have serious consequences. It is often used to treat burns and as a nutritional supplement for bodybuilders. It has moisturizing and anti-inflammatory effects, can regulate skin moisture, improve the anti-allergic ability of sensitive skin, and prevent the occurrence of wrinkles.
English Name | L-Isoleucine |
CAS | 73-32-5 |
Appearance | White Crystals or Crystalline Powder |
Purity | 98.5% |
Test Method | HPLC |

2. Technical Data Sheet
Product Information | |
Product Name | L-Isoleucine |
CAS | 73-32-5 |
Test Items | Specifications |
Appearance | White Crystals or Crystalline Powder,Tastes at first slightly sweet, and then bitter |
Assay | 98.5% ~ 101.5% |
Identification | Concordant with the reference speetrum |
pH | 5.5~7.0 |
Specific rotation | +38.9°~+41.8° |
Loss on Drying | ≤0.30% |
Residue on ignition | ≤0.30% |
Sulfate(SO4) | ≤0.03% |
Chloride(Cl) | ≤0.05% |
Iron(Fe) | ≤0.003% |
Heavy Metals | ≤15ppm |
Lead (Pb) | ≤3ppm |
Arsenic (As) | ≤1ppm |
Total Aerobic Count | ≤1000cfu/g |
Yeast and Moulds | ≤100cfu/g |
E-Coli | ≤50cfu/g |
3. Benefits of l-isoleucine
1) It helps to promote muscle recovery after training and effectively prevent muscle loss because it can be decomposed into glucose faster. Increased glucose prevents damage to muscle tissue, so it's especially good for bodybuilders. It also promotes the healing of bone, skin, and damaged muscle tissue, and doctors often recommend leucine supplements for post-surgery patients
2) It has moisturizing and anti-inflammatory effects in cosmetics. Isoleucine can regulate skin moisture, improve the anti-allergic ability of sensitive skin, prevent wrinkles, activate skin cells to exceed the activity of oxide dismutase, eliminate excess free radicals in skin cells, and effectively delay skin aging.
3.)Helps Lower Blood Sugar
Studies using normal animal subjects found that just one oral dose of isoleucine significantly lowered blood sugar levels, but taking leucine and valine did not significantly lower blood sugar levels. It appears to stimulate insulin-independent glucose uptake in skeletal muscle cells.
4. Precautions for use
Excessive intake of it can also lead to side effects, many of which have been linked to issues such as pellagra, vitamin D inattention symptoms, and can cause dermatitis, diarrhea, and confusion. Too much leucine in the diet will also increase the amount of ammonia in the body and damage the liver and kidney functions. Dosage, please follow the doctor‵s advice

5. LonierHerb Supports
★ Samples Support : 20g Free Samples for your testing in advance.
★ Service Support : 24 hours professional service for you .
★ Shipment Support : Available stocks , delivery within 2~3 days after confirmation.
★ Freight Support : FedEx, TNT, DHL, UPS and First Class Forwarder
★ Document Support : Technical Data Sheet, Certificate of Analysis, Allergen List, MSDS,
Nutrition Information, Certificate of Origin and so on.
6. LonierHerb Certificate
Over the years, we have been committed to the product manufacture optimization and quality system establishment. We’ve set up the quality management system and obtained certificates of it.

7. Test Reports from Third Laboratory
We have cooperated with other famous third-party laboratories, such as Eurofins, SGS , we can arrange the Samples to reinspect according to customer’s requirements before shipments. Of course, even to the laboratory designated by the customers.

8. Contact Us

For the further information of L-Isoleucine Powder, please contact and enquiry LonierHerb factory directly, Free Samples, COA, MSDS, Allergen List and so on will be sent to you at the first time. Your satisfaction is our first priority. THANK YOU !
Email: info@lonierherb.com Whatsapp/Wechat: +86-18189137076
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