paula's choice glutathione Paula’s 25% Vitamin C + Clinical Serum 1oz New level serum features highly stable 25% vitamin C to visibly improve uneven tone Paula's Choice 25% Vitamin C

This timeframe assumes proper reconstitution technique, appropriate diluent selection, and consistent cold storage without temperature excursions

Minimal oxidation thanks to the Fresh Activation System

01 Bacteriostatic Solvent Sterile water with 0.9% benzyl alcohol for multi-use peptide reconstitution 02 USP Grade Manufactured to United States Pharmacopeia standards 03 USA Tested & Verified Quality tested at USA-based facilities to confirm sterility and composition RESEARCH Bacteriostatic Water Mechanism of Action in Research The mechanism by which bacteriostatic water maintains sterility during multi-use applications centers on the bacteriostatic properties of benzyl alcohol

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