NINGBO INNO PHARMCHEM CO.,LTD. is dedicated to providing insights into the scientific underpinnings of the products we offer. L-Cysteine is a fascinating molecule with a rich profile of biological and chemical properties that make it invaluable across many industries.
Chemically, L-Cysteine is a proteinogenic amino acid, meaning it is one of the 20 standard amino acids that form proteins. Its defining characteristic is the presence of a thiol group (-SH) in its side chain. This thiol group is highly reactive and plays a crucial role in L-Cysteine's functionality. It can form disulfide bonds (S-S) with other cysteine molecules, which are essential for stabilizing the three-dimensional structure of proteins, including important enzymes and structural proteins in the body. Understanding these protein-building capabilities is fundamental to appreciating L-Cysteine's importance.
Biologically, L-Cysteine is synthesized in the human liver, classifying it as a non-essential amino acid, meaning the body can produce it. However, its roles are far from non-essential. As mentioned, it is a key component in the synthesis of glutathione, a tripeptide that is vital for cellular defense against oxidative stress and for detoxification processes. The ability of L-Cysteine to bind to heavy metals and to neutralize toxins makes it a cornerstone of the body's natural defense system. For those seeking to incorporate these benefits, knowing where to find reliable L-cysteine suppliers like NINGBO INNO PHARMCHEM CO.,LTD. is crucial for ensuring product quality and efficacy in research or production.
Manufacturing Facilities






Professional Export Experience
to Global Customers
1. 20 years of R&D, manufacturing and sales experience, serving customers in 60 countries and regions around the world;
2. Own R&D laboratory, pilot platform and large-scale production workshop, which can meet the audit requirements of global customers;
3. We can satisfy customers' perfect transition from small scale lab requirements (gram level) to commercialization requirements (hundred tons level).
A: We don't have Minimum Order Quantity, exact quantity should be provided before quotation for us to calculate the exact cost.
A: We don't provide free samples due to lots of request and expensive international courier's cost, we can deduct the sample charge after commercial order placed.
A: Our payment terms: Small or sample order: T/T IN ADVANCE. Commercial order: First order should be by T/T IN ADVANCE or L/C at sight, and following orders T/T 30~90days is acceptable subject to approval of credit application.