Free Shipping

on orders > € 40 to Pickup location

Money Back Guarantee

We have a 100 days return policy, not the standard 30 days!

Daily Shipping

Order before 14:00 CET, for same day shipping (Mon-Fri)

Customer Care Advisory

Note we also have free call numbers in 6 countries

Go-Keto Strips

Item #50111 25 Tests In stock
24.95 22.45
€  24,95 Sale €  22,45 Save €  2,50
Buy 1 get 10% discount

Supplement Facts

Each box contains 25 Ketone Test Strips and 1 Code Chip. 

  • Measures from 0.0 mmol/L ~ 8.0 mmol/L
  • CE0123 certified for home use
  • The On Call® Blood β-Ketone Test Strip has been tested and shown to give accurate results up to 10,000 ft (3,048 meters).

Instructions for use:

Before use check your User’s Manual for complete instructions for blood sample collection.

  1. Open the cap of the test strip vial only to remove a test strip for testing. Replace the cap immediately to protect the remaining test strips from moisture in the air.
  2. Run the blood β-Ketone test following the instructions contained in your user’s manual.
  3. The blood β-Ketone test result will be shown on the meter display window. This result should fall within the target range recommended by your healthcare professional. If your blood β-Ketone test results are higher, ask your healthcare professional what to do. Always consult your healthcare professional before making any changes to your treatment plan.

IMPORTANT: The On Call® GK Dual Ketone Test Strips are designed to be used with fresh capillary blood from fingertip only. Blood samples from forearm or palm can not be used.

Refer to the package insert (English) for details. 


Test strips should be stored tightly capped in their protective vial to keep them in good working condition. Store test strips in a cool, dry place at room temperature. Store them away from heat and direct sunlight. Do not freeze or refrigerate. Use the test strips at room temperature. This is to ensure accurate results. Do not store the test strips outside their protective vial. Test strips must be stored in the original vial with the cap tightly closed. Do not store or use the test strips in a humid place such as a bathroom. Do not use your test strips past the unopened expiration date printed on the vial. Using test strips past the expiration date may produce incorrect test results. A new vial of test strips may be used for 6 months after first being opened.

Show More

Show Less


Product reviews are provided for informational purposes only and reflect solely the views and opinions expressed by the contributors and not those of Life Extension. We do not verify or endorse any claims made in these reviews.