RYSUN Vitamin C Serum — Professional Brightening & Protection

Vitamin C Serum — RYSUN Professional Solutions

RYSUN's vitamin C serum combines clinical-grade actives with scalable manufacturing to deliver visible brightening and antioxidant protection. Founded in Guangzhou High-Tech Development Zone, RYSUN leverages over a decade of formulation expertise to create stable, effective serums tailored for brands and consumers who demand performance and safety.

Science-backed Formulations

Our Research Institute, assembled in 2015, brings together doctors, professors, and R&D experts in biology, dermatology, chemistry, microbiology and pharmacology. With 105 product patterns, 253 intellectual properties, and a team of 20 lead researchers, RYSUN optimizes vitamin C serum formulations for stability, penetration, and skin compatibility using advanced delivery systems and antioxidant synergies.

Visible Skin Benefits

RYSUN vitamin C serum targets uneven tone, dullness, and early signs of aging. Vitamin C acts as a potent antioxidant to neutralize free radicals, supports collagen synthesis to improve firmness, and reduces hyperpigmentation for more radiant skin. Formulations are designed for a range of skin types, from sensitive to mature, with options for different concentrations and complementary actives.

Quality & Manufacturing Excellence

Quality is central to RYSUN. Each product undergoes up to 50 inspection procedures to ensure consistency, safety, and efficacy. Serving 700+ brand partners and exporting to 50+ countries, our manufacturing practices prioritize affordability, regulatory compliance, and scalable private-label solutions for global markets.

How to Use & Pairing Tips

Apply a few drops of vitamin C serum to cleansed skin each morning or evening. Pair with moisturizing ingredients and always follow with broad-spectrum sunscreen during daytime use. For sensitive skin, start with lower concentrations and perform a patch test. Proper packaging and storage further preserve potency.

Why Choose RYSUN Vitamin C Serum

Choose RYSUN for research-driven formulations, proven manufacturing controls, and a partner committed to innovation and affordability. Whether you need a ready-to-market formula or a custom private-label vitamin C serum, RYSUN combines scientific rigor with commercial insight to bring standout skincare to the world.