Protheragen offers a comprehensive and high-purity range of amino acids and their derivatives. These molecules are the fundamental units that make up proteins and are the indispensable building blocks of life processes. Our products serve a wide range of fields, and with outstanding quality and reliability, we have become a trusted partner in global research and production.

Extensive Product Portfolio

Backed by a robust global supply chain and large-scale production capacity, we reliably deliver orders ranging from gram-scale research samples to kilogram quantities for commercial production.

• Standard amino acid series

We offer a complete range of L-type, D-type, and DL-type amino acids, including all essential and non-essential amino acids such as L-proline, L-leucine, and L-isoleucine, which are the basis for nutritional supplementation and cell culture.

• Branched-chain amino acids (BCAA)

We provide high-quality raw materials for L-leucine and L-isoleucine, or pre-mixed BCAA compound products, precisely meeting the needs of the sports nutrition and medical nutrition markets.

• Amino acid derivatives and salts

We have a rich variety of modified amino acids, such as acetylcysteine and amino histidine, with superior solubility, stability, and bioavailability.

• Special amino acids

We supply key raw materials such as cystine and methionine, which have special functions in pharmaceutical synthesis, antioxidants, and cosmetics.

Application

• Pharmaceuticals
• Nutrition and health supplements
• Cell culture and biotechnology
• Cosmetics and personal care
• Industrial applications

We adhere to production and quality control standards in accordance with GMP requirements, ensuring that each batch of products has ultra-high purity and consistent stability, and guaranteeing the safety and efficiency of the final products. If you cannot find the product you need in our catalog or require more detailed information, please contact us. We will get back to you within 2-4 working days.