This way, you only need to purchase the solution as you are using it to ensure you're getting a fresh supply every time.
10 Pack Includes: 10 Lift & 10 Neutralizer Sachets
5 Pack Includes: 5 Lift & 5 Neutralizer Sachets
Elleebana HQ has provided an excellent explanation of processing times and how to avoid over processing:
*By purchasing this product, you are agreeing that you are a licensed and insured professional.