Typical Sodium Hypochlorite Solutions deteriorate quickly, especially when exposed to light, heat, or contamination with metallic ions. The United States Pharmacopeia, current revision, states that Sodium Hypochlorite Topical Solution has a shelf life of seven (7) days after the day on which it was compounded.
In contrast to typical Sodium Hypochlorite Solutions Century’s Dakin’s® and Di-Dak-Sol® products use high quality, purified water with low metallic ions; and the products are manufactured with special equipment, under current Good Manufacturing Practices (cGMP). Due to this extra care, the stability of our Dakin’s® and Di-Dak-Sol® (Diluted Dakin’s Solution®) products are much longer than typical Sodium Hypochlorite Topical Solutions.
Product Shelf life based on thousands of stability studies performed in the past:
Dakin’s Full Strength® (0.50%) — 12 months Dakin’s Half Strength® (0.25%) — 24 months Dakin’s Quarter Strength® (0.125%) — 24 months Di-Dak-Sol® (0.0125%) — 24 months
According to cGMP, at least one lot of each drug manufactured shall be tested annually, until it’s expiration date, in order to verify the expiration date of the product. In contrast, every single lot of Dakin’s® and Di-Dak-Sol is monitored and tested until it’s expiration date; and not only once, but many times per year.
While it is costly to perform several stability tests throughout the life of each lot of Dakin’s® and Di-Dak-Sol®, Century has decided to monitor these products for total customer satisfaction.
We do not recommend further dilution of our Dakin’s® and Di-Dak-Sol® products, due to the fact that we cannot control the process, nor the quality of the water used for the dilution. Although we are aware some facilities dilute our products, we cannot guarantee the diluted product’s effectiveness, nor it’s stability. If dilution is necessary, the final product should be used immediately.