pH Test Strips

The pH test strips allow you to easily and quickly measure the pH value of various liquids. These strips are ideal for testing cosmetic products, shampoos, liquid and solid soaps. They are easy to use, compact and offer reliable results.

Product Features

• Simple to use: tear off a strip, dip it into the liquid and compare the color change with the color index provided.
• Wide range: The test strips measure pH values from 1 to 14, suitable for a variety of applications such as cosmetics, soap, shampoo, food and more.
• Useful indications:
  • pH 1-3: Strongly acidic
  • pH 4-6: Mildly acidic
  • pH 7: Neutral
  • pH 8-11: Mildly alkaline
  • pH 12-14: Strongly alkaline
• Compact size: The strips have a convenient size of 70 x 45 mm and are easy to carry.

Specifications

• Number of strips: 80 pieces
• Material: Litmus paper
• Dimensions: 70 x 45 mm
• Measuring range: pH 1 ~ 14

User Manual

1. Tear off a strip from the litmus paper.
2. Dip the strip into the liquid you want to test for 1-2 seconds. Make sure the liquid completely covers the strip.
3. Remove the strip from the liquid and let it dry for a few seconds until the color is completely changed.
4. Compare the color of the strip with the color index provided to determine the pH value.
5. Record the pH value and discard the used strip.

Use in cosmetics, shampoo, liquid and solid soap

• Cosmetics (creams, lotions, serums): Take a small amount of the product and dilute it with an equal amount of distilled water. Dip the strip into the mixture and compare the color with the index. Check that the pH is appropriate (usually between 4.5 and 7).
• Shampoo and liquid soap: Dilute a small amount of shampoo or liquid soap with distilled water in a 1:1 ratio. Dip the test strip into the solution and compare the color to the index. Check that the pH is within the recommended range (usually 5 to 7).
• Solid soap: Grate about 1 gram of soap and dissolve it in 10-15 ml of distilled water. Allow the mixture to cool to room temperature, then dip the test strip into the solution. Compare the color with the index. The pH of solid soap is usually between 9 and 10.

Tips for accurate measurements

Always use clean and dry containers to avoid contamination. Use distilled water to dilute so that pH will not be affected. Make sure the test strip is not left in the liquid for too long to avoid inaccurate results.

With these pH test strips, you can easily and reliably check the pH level of your products to create safe and skin-friendly formulas.