Dell pH Test Strips for Urine and Saliva with 4 testing panels for increased accuracy: pH Dip Sticks (100 Count, Full pH Range from 0 to 14)

These are high quality and respond quickly, I like that they are full range PH. I used them to make sure the PH of my homemade calcium / magnesium mouthwash was in the range I wanted and also to check the PH of my coffee, tea and various juices. It properly measured lemon juice at a PH of 2 and calcium carbonate up around 13-14. I also use these to check saliva PH throughout the day to make sure enamel is able to re-mineralize. I would and am likely to re-order these.

Quick and easy to use. The color comes up quickly and is very easy to match to the box. The small size of the box is also discreet, and easy to stash out of sight. I really like that box! Seems to be very accurate, showing a color shift that matched a diet change I made the day before. It's going to last a long time, but I will buy again when I use these up. Good value!

These strips arrived quickly and well packaged. I was buying these to measure my water and my media for cell cultures etc. (I'm a Chief Scientific Officer and Ph.D. in a biotechnology company). I was comparing them to another brand (Cat. #9590 from EMD) and my laboratory pH meter. My sample measured pH 7.4 on my meter and these strips accurately indicated a pH between 7 and 8. A pH 7.8 buffer was closer to 8 in color on the strip than the pH 7.4 indicating that these strips may be able to distinguish more than to +/-0.5 accuracy. Contrast was great. The EMD strips worked, but failed miserably in comparison. The only issue was the protocol: The protocol states to "dip" the stick in for 0.5 seconds and read the color value. When I dipped,the colors changed instantly as expected (for these strips), but the colors were bleeding off the strip (mostly gravity assisted). Thus, I would suggest a change in the protocol: Lay the strip horizontally on a clean surface. Using a pipette or dropper, drop a drop on each 'measuring square.' Pick up the strip keeping it flat and horizontally level and rotate it to 'flick off' any excess sample droplets, then read. I realize that would not make the product a 'dip-stick,' and that may be your requirement. Other than the bleeding, these strips Rock!

I brought this product because I recently was diagnosed with skin cancer , basil cell and after reading tons of material I now know that cancer can't live in an alkaline environment , I used the strips as soon as they arrived and tested my urine and saliva which showed I was acidic, I love the packaging because you can take them anywhere with you . I now use them every morning and 2 hrs after meals and at bedtime . During the day theses sticks let me how I should adjust my diet and drink or eat more alkaline foods . These stick are amazing . Very accurate and I think every doctor should recommend to the patients . This is a very inexpensive way to prevent diseases and save lives. I will be buying again

Most of the colored squares on my packages do not agree with those displayed in the Amazon advertisement. For example, the top row for pH values 6, 7, & 8 on the delivered packages are not blue like those in the advertisement, but black and purple. The second row of colors are yellow in the ad and orange on my delivered product for PHs 2 - 4. I found numerous discrepancies on all 4 rows. Which chart is correct? If delivered ones are, the pH resolution is lower than that advertised. I am not convinced that these strips are designed for urine and saliva testing. A more accurate test with a limited, BUT CONSISTENT AND ACCURATE, range between 4.5 and 8.5 would be much more useful.

So, I used these to test my beauty products. For the best efficacy, some products need a certain pH in order to work on the skin at the optimal level. It was fun to play with them to test my products.I swapped the products using qtips onto the strips. It was difficult to determine some of the results if it fell between two numbers. Overall, very easy to use.

You can use urine and saliva if containing it first. I bought these to test my dog. One of the major factors in fighting her cancer is keeping her PH between 7.4 and 8. Cancer cannot invade alkaline tissue, so monitoring her PH with these sticks is KEY. I HAVE to test her urine stream daily, and well i don't prefer these strips as much as I do the two coloured strip for urine stream testing, I do prefer these strips, which have proven themselves much more accurate when im testing her drinking water which i distill and alkalinize. thank you

The test strips are excellent and an outstanding value for the price. Testing in Urine for pH was easy to interpret due to the four color system. The only downside to the product was the container. It comes in a sturdy clear plastic container with the pH values printed on front and back, zero to 7 on the front and 8 to 14 on the back. I immediately felt the container would keep the strips air tight and help them last longer. However, as I tried to open it, I discovered that it was smarter than I was. The top lifts off and snaps back on, but I ended up having to pry it off with a knife, thus cracking it. I'm sure that if I had been a bit smarter, or stronger, I could have figured out how to open it properly. Pulling it up by hand, and trying to work it off, didn't work for me.