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RainbowFine
  • The Professional Supplier of Cosmetic and Nutrition raw materials

    OEM/ODM Solution
    OUR PRODUCTS
Jining RainbowFine Biotech Co., Ltd

Born in the Cradle of Confucianism
Established in 2017 in Qufu – the sacred birthplace of Confucius – we embody the ancient virtues of Ren (仁, Benevolence) and Zhi (智, Wisdom) in modern biotechnology. Like a rainbow bridging earth and sky, we transform premium raw materials into vibrant solutions for global beauty and health.

More than Products

Partner with us for more than premium actives – we deliver the essence of radiant beauty, vibrant health, and life’s sweetest fulfillment. Every ingredient embodies our commitment: to help humanity discover deeper confidence, richer vitality, and the profound joy of thriving.
Because true wellness isn’t just felt… it’s tasted in every moment of happiness we help create.

Sodium Hyaluronate/HA

a biomaterial of unparalleled versatility  — owing to its extreme hydrophilicity, biocompatibility, and tunable molecular weight effects. As research advances, its role in regenerative medicine and personalized skincare continues to expand, solidifying its status as a "holy grail" ingredient in health and beauty.

Sodium Polyglutamate/PGA

redefines biomaterial efficacy through unparalleled hydration, safety, and multi-industry versatility. Its fusion of traditional bioactivity (e.g., natto-derived mineral enhancement) with cutting-edge applications (e.g., nanomedicine) positions it as a cornerstone of next-generation cosmetics and nutraceuticals. 

Chondroitin Sulfate

stands as a cornerstone biomolecule in joint health, combining proven clinical efficacy with multi-industry versatility. Its dual role as a structural component (cartilage matrix) and signaling modulator (inflammation/wound healing) ensures sustained demand across nutraceutical, pharmaceutical, and cosmetic sectors. 

Stevia Extract

transcends its role as a sweetener—emerging as a cross-industry bioactive agent. From enabling diabetic-friendly diets to pioneering "clean beauty" formulations, its synergy of safetyefficacy, and sustainability aligns with global health trends. Ongoing innovations in purification and delivery systems continue to unlock its potential in functional nutrition and dermatology.

OEM/ODM Solution

Your End-to-End Innovation Partner

Precision Formulation | Confucian Integrity | Global Compliance

"To innovate with benevolence, to perfect with wisdom" 

– Our R&D motto

Contact us for any enquiry.

Address:

Yuan 4th Road, Industrial Park Economic Development Zone Qufu City, Shandong Province China 273100.

Phone:

86-0537-4683686

Email:

info@rainbowfine.com