Bioactive polysaccharides are crucial for the composition and various physiological functions of living organisms, and play an important role in maintaining life activities. Runhui Biotechnology has successfully developed multiple exclusive products using proprietary technology, including ascorbate propylene glycol hyaluronic acid ester (also known as vitamin grade... C propylene glycol hyaluronic acid ester), all trans retinoic acid hyaluronic acid ester, and more than ten other hyaluronic acid fusion molecules, which have anti wrinkle, whitening, antioxidant, and acne removing effects. Heparin 4.0 is prepared using synthetic biology methods and has the characteristics of non animal origin and ultra-low molecular weight (MW<3000), making it more suitable for cosmetic use, with higher safety and quality.