Glutathione Reduced L-Glutathione Antioxidant Skin Brightening Raw Material CAS 55921-65-8

Reduced Glutathione is a natural active tripeptide composed of glutamic acid, cysteine and glycine, which is a popular antioxidant and melanin‑inhibiting brightening raw material in skincare industry. This cosmetic‑grade product appears as white crystalline powder with excellent water solubility, easily dissolved in pure water and compatible with various water‑based and emulsion formulas. The sulfhydryl group in reduced glutathione is its core active group. It can efficiently scavenge excess free radicals in skin, resist oxidative stress damage caused by UV rays and environmental pollution, block melanin formation pathway, inhibit tyrosinase activity and reduce melanin secretion from melanocytes. It improves dull, sallow and uneven pigmented complexion, repairs skin and relieves oxidative damage to keep skin clear and luminous. It has high intrinsic activity and is sensitive to temperature and oxygen, so oxygen isolation and temperature control protection are required in formulas. We supply high‑purity reduced glutathione powder. Every batch passes strict tests including HPLC assay, heavy metal, microbiology and residue inspection to guarantee stable specifications. Samples are available for formulation trial, accelerated stability test and efficacy evaluation. Full documents including COA, TDS and SDS are supplied. The product complies with REACH, GMP, ISO22716, FDA, HALAL, KOSHER standards for global cosmetic filing. Food grade is also available for dietary supplement production.

As an antioxidant and melanin‑inhibiting tripeptide raw material, Reduced Glutathione is widely used in brightening and antioxidant repair skincare formulas, serving as the core active ingredient for product lines focusing on evening skin tone, fading dullness and relieving sallowness. It is commonly added into brightening serums, whitening toners, pigment‑reducing lotions, repairing masks, ampoules and meso‑type skincare products. It has good formulation compatibility and can be compounded with VC derivatives, tranexamic acid, carnosine, peptides, panthenol, sodium hyaluronate and soothing botanical extracts. Combined formulas inhibit melanin and scavenge free radicals through multiple pathways for synergistic brightening effects, while soothing external irritation and reducing the irritation risk of single brightening ingredients. It is prone to oxidation and deactivation under high temperature and prolonged air exposure. Low‑temperature feeding is recommended during formulation development. Chelating agents and antioxidants should be added in the formula, light‑proof packaging is preferred, and the pH value needs to be kept within a proper range, away from strong acid and strong alkali. Apart from cosmetic application, reduced glutathione is also widely used in functional foods and dietary supplements. We can supply cosmetic grade and food grade separately according to your end application, with matching specifications and complete compliance documents to support your production, export and overseas filing.

We provide standard industrial packing solutions and support customized packaging upon request. There are two regular packing sizes: 1kg vacuum aluminum foil bag for sample testing, laboratory formulation trial and small‑batch production; 25kg food‑grade sealed plastic drum for mass industrial production procurement. All packages are equipped with internal moisture‑proof layers to block moisture and light, preventing activity loss of raw materials during storage and transportation. It should be stored in sealed, light‑proof, cool and dry conditions, away from heat sources, open flames and strong oxidants, and avoid drastic temperature changes. The shelf life is 24 months for unopened products. Once opened, it is recommended to consume as soon as possible. Residual materials need to be re‑sealed and stored away from light under refrigeration to avoid degradation of active components. We also offer neutral packing and private label packing services to meet export and repackaging demands of different brands.

With years of export experience in fine chemical raw materials, we have built a mature and stable global logistics supply chain. We can flexibly arrange various transportation solutions according to order volume, delivery schedule and destination country, including FCL/LCL sea freight, air freight, international courier and multimodal transport. We support multiple trade terms such as FOB, CIF, CFR, DAP and DDP, and prepare customs declaration documents, certificates of origin and compliance certificates accordingly. Our raw materials are exported to Southeast Asia, EU countries, North America, the Middle East, Australia, Latin America and dozens of other regions. We are familiar with export declaration procedures, customs inspection requirements and local import filing rules for cosmetic active ingredients, helping customers avoid detention risks caused by non‑compliant documents in advance. After shipment, we track shipment status continuously and update logistics information. We will coordinate promptly once customs clearance or logistics issues occur, to ensure safe and on‑time delivery to your designated address. We also strictly manage hazard classification and transport identification documents to guarantee full compliance throughout transit.

Shandong Keyang Material Technology Co., Ltd. is a professional enterprise focusing on the R&D, production and export supply of cosmetic functional active ingredients, plant extracts and skincare fine chemical raw materials. We have established a complete quality management system. Multiple quality control checkpoints are arranged from raw material source selection, synthesis process control, in‑line inspection to finished product release test, to strictly control purity, activity and microbial indicators of every batch, ensuring consistent specifications across batches. Our professional technical team provides formulation support, compatibility advice and stability test guidance, helping customers solve various difficulties during formula development. For overseas buyers, we are well acquainted with global cosmetic raw material regulations and can prepare compliance documents and certification files required by target markets to lower your filing barriers. We adhere to the service principle of stable quality, transparent delivery and fast response. We keep supplying cost‑effective functional raw materials and supporting technical services for cosmetic factories, skincare R&D laboratories and beauty brands worldwide, maintaining long‑term stable cooperation with numerous domestic and overseas beauty clients.