These indicator strips read pH from 0 - 14 pH. A must if you wish to balance the pH of Moisturisers, Shampoo and Liquid soaps.
This pack contains 5 metres of strip, in a roll dispenser case.
- Dispense approximately 2 - 3 cm from the roll
- Dip strip into batch for 0.5 second
- Shake off excess liquid
- Compare with colour guide on the case to the strip
- Adjust formula with Citric Acid or other agent
- Retest with the other end of the pH strip to check
- Note down exact change to formula to future batches