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High Anti-Aging Product Acetyl Tetrapeptide-9. Anti-Aging Efficacy: Firms skin, reduces wrinkles, and boosts collagen synthesis for mature skin. High Purity Standard: 99% purity with refined quality and available COA/MSDS documentation. Sample Availability: Free samples provided for quality confirmation before bulk orders. Customized Synthesis: Professional R&D team offers one-stop customized peptide services. Fast Delivery: Small orders ship in 5-7 days; large orders in 15 days. Versatile Application: Suitable for creams, serums, lotions, and haircare products. OEM Services: Custom labels and packaging available to expand brand force. Quality Assurance: Batch COA reports provided before shipping for every order.