by Oscar Falconi


C-STRIPS are chemically treated test papers (2.5cm x 0.75 cm) used for measuring the vitamin C content of urine and certain other liquids. The presence of Vitamin C will turn the papers from blue to white. They were conceived, developed, and first manufactured by Wholesale Nutrition in 1972, and are available exclusively from us or our representatives. Our C-Strips have a greater range, better accuracy, and are less than one-tenth the cost of competitive products. In addition, C-Strips are specific for the reduced form of Vitamin C, whereas other products will give false indications in the presence of dehydroascorbic acid, the oxidized form of vitamin C, which is a waste product.


Leave only the number of strips you expect to use in the next week or so out in room temperature.

In the freezer, C-Strips will keep in perfect condition for years. At room temperature, they will fade in several weeks.

Are you deficient in Vitamin C?

Are you getting enough vitamin C? Is your body absorbing it? Some lucky persons normally need just a few hundred milligrams per day whereas many others will need many grams per day for optimum health. In addition, one person’s need for vitamin C will vary greatly from day to day depending on his health, environment, activity, food intake, etc. One’s vitamin C requirements can jump 100-fold in several hours when the body is under attack.

Therefore, you’ll find these quick, convenient, and cheap tests for your body’s vitamin C status to be extremely useful. With them you can determine your overall optimum vitamin C requirement and also alert yourself of an impending sickness and the need of an increased, or massive, dose. It has been shown that an infection depletes the urine’s vitamin C a full day BEFORE a fever develops!

At first, you should use C-Strips frequently until you have a feel for how much vitamin C your body needs and how your own unique body reacts to various stresses. After your initial familiarization, occasional use of the test will keep you in optimum health at least cost. When you are ill or if you’re ever injured or poisoned (for example by snake bite, carbon monoxide, etc.), you can use C-Strips to ensure that you’re staying on top of your body’s extra need for vitamin C by testing at every opportunity until the challenge has passed. In acute situations, intake of vitamin C at 20-minute intervals is more effective than larger doses less often.

Vitamin C is water-soluble and so the extra amounts that you take can’t be stored very long. This extra C is removed from the bloodstream by the kidney and passes out of the body through the bladder with the urine. Many think this “unused” vitamin C is wasted and that large doses suggested by Drs. Linus Pauling, Irwin Stone, Bob Cathcart, Fred Klenner, and others, are unnecessary. However, it has already been shown that an excess of vitamin C continually flowing out with the urine:

(1) removes detritus and clears cloudy urine within hours,
(2) probably offers 95% protection against bladder cancer,
(3) dissolves (and prevents) kidney and bladder stones,
(4) cures (and prevents) painful urination due to inflammation of the urethra,
(5) cures (and prevents) urinary tract infections and blood in the urine due to unknown causes,
(6) indicates that the body is supplied with vitamin C and that it’s prepared to instantly mount an attack against infection, injury, shock, or stress, anywhere in the body.

Please note that these benefits are due only to the extra vitamin C that some assume is “wasted”.

When treating patients with acute symptoms from toxic exposure, infection or other challenges, Dr. Fred Klenner administered large doses of intravenous ascorbate, and he used a urine test to ensure that the patient was getting enough ascorbate to fight the challenge. His test used silver nitrate solution, which is toxic. Testing with a C-Strip is easier to perform and easier to read than Dr. Klenner’s silver nitrate test. C-Strips are also nontoxic.

For a good overview of the role of ascorbate in health and healing see Dr. Tom Levy’s lecture on the Mega-C web site of Smart Life Forum. There you will also find information on Dr. Levy’s November, 2001 book which reviews over 1,200 peer-reviewed journal papers on vitamin C and infections and toxins published in mainstream journals over the better part of the last century.


C-STRIPS are not just tests for acidity, but are specific tests for vitamin C. Acids will turn the C-Strips pink. Only vitamin C will turn the blue strips white. The following tests are best performed before meals, preferably before breakfast, and certainly before taking any vitamin C. Tests (1) and (5) are preferred by most persons, and (3) is best for infants.

(1) Urine test: Moisten one end of the blue test strip with a touch of urine. As the urine runs up the strip, by capillary action, it should soon turn the test paper white for almost as far as the urine travels. (As the urine runs its course, the C is depleted from it by the blue indicator and a portion of the paper will be wet but won’t turn white. This is normal and doesn’t indicate a lack of C.) If the paper remains blue after 10 seconds, then your body is using all the C it can get, leaving no excess to be used as listed above. You then should increase your intake of vitamin C.

(2) Tongue test: Here’s a test to determine if vitamin C is present in the cells of your body. First rinse your mouth and dry your tongue. Then slightly moisten a blue C-Strip with water and lightly squeeze it onto your tongue so that some of the blue indicator transfers over. The blue should then disappear from your tongue in about 5 seconds or so. If the time taken is much over 10 seconds, it’s indicative of a poor tissue vitamin C status and you should increase your intake of vitamin C. The blue indicator is in no way harmful.

(3) Diaper test: Push a C-Strip into a recently wetted diaper. The urine-moistened C-Strip should turn white within a few seconds. It’s particularly important that infants obtain ample C to prevent SIDS (Sudden Infant Death Syndrome), also known as Crib or Cot Death. The infant should get about 100 mg per day of C for each month of age - i.e., 300 mg per day for a 3-month-old infant. Many breast feeding mothers place some sodium ascorbate crystals on their nipples. Read Every Second Child, by Dr. Archie Kalokerinos, available from Wholesale Nutrition for $4.

(4) Quantitative test #1: Each C-Strip contains enough blue indicator to titrate (to use up) about 10 to 15 micrograms of vitamin C. (1000 micrograms = 1 milligram = .001 gram, and 453.6 grams = 1 pound) Merely count the number of C-Strips required to BEGIN turning your small teaspoon sized sample a very light blue. If eight C-Strips were required, then your sample contained about 100 micrograms of vitamin C. If the sample is too small, add water and stir. This test is extremely sensitive and is only used to detect very minute quantities of vitamin C.

(5) Quantitative test #2: for the vitamin C content of urine: Before a meal, collect a sample of urine and pour an ounce or two into a clear glass. Place in a good light (fluorescent or daylight is best) and on a white surface or a sheet of white paper. Immerse a blue C-Strip into the urine sample. Push it under the surface, let it drop to the bottom, and don’t stir or agitate. Count the seconds from the instant of immersion until most of the blue disappears and the C-Strip is about 3/4 white. The exact moment to stop counting can’t be found exactly without costly optical equipment. But your best guess should allow you to determine the vitamin C concentration to within a factor of 2 over a total possible range of 10,000 to 1. After counting, refer to the table below to find the level of vitamin C in your urine. For instance, if you counted 10 seconds, then the urine’s C level is 13 milligrams of Vitamin C per 100 grams of urine. If the urine was at room temperature (68F or 20C), the level was 30 mg/100 grams.

With high concentrations of vitamin C, it becomes necessary to count small fractions of a second. To avoid this problem, merely dilute the urine to 10 or 100 times the volume and measure the concentration. In the above example, had the sample been diluted by 100 to 1, the original (prediluted) concentration would have been 1300 milligrams of vitamin C per 100 grams of the sample.

It is felt by Stone, Kalokerinos, Dettman, Cathcart, and others, that the urine’s C level should never get below 100mg/100g for optimum health and that any result below 10mg/100g of urine must be considered in what they term the “sick range”.

Vitamin C                     Vitamin C
(Urine at room     SECONDS TO     (Urine at body
 temperature)     TURN C-STRIP     temperature)
 mg/100 grams      3/4  WHITE      mg/100 grams
==============    ============    ==============
     7000              0.5            1200
     1200              1               300
      300              2                90
       90              5                30
       30             10                13
       13             20                 7
        7             50                 4
        4            100                 2
        2            200                 1
        1            500                 0.5


Wholesale Nutrition is the world’s only source of C-Strips. We conceived the idea of a vitamin C urine test strip in 1972. We determined the chemicals required and, after lengthy experimentation, finally came up with the present product. We also devised and perfected the manufacturing, calibration, and packaging of C-Strips. We’ve been selling them since 1973. C-Strips is a fine product, does an important job, and is offered at a very reasonable price. Any other country would be proud to have had any of its citizens originate such a product for the benefit of all. But not the United States of America! Nor the State of California! Back in 1983 the U.S. Postal Service pounced on us for including important and useful information with the C-Strips instructions. We eventually had to eliminate this information despite the testimonies of Drs. Linus Pauling, Irwin Stone, Robert Cathcart, and Robert Erdmann in our behalf confirming the accuracy of our statements. And now (1986) the State of California is being just plain stupid. Believe it or not, Wholesale Nutrition had to pay California $277 every year for the “privilege” of manufacturing C-Strips. The state Food & Drug bureaucrats then send their inspectors to look for trouble - anything they can dig up to justify their existence.

For example: They complain about details of the manufacturing process - despite the fact that no one else in the world makes C-Strips. We’ve been years perfecting the process and know exactly what is important and what isn’t, yet these bureaucrats, lacking any knowledge of chemistry nor of our long experience, try to tell us how to make our C-Strips.

Another example: During one inspection we showed how our scales agreed with each other and with a master weight to better than one part in a thousand, and yet a silly California Food & Drug bureaucrat, in her report, stated that our weights weren’t traceable to the National Bureau of Standards! This kind of accuracy is quite unnecessary in the manufacture of C-Strips since the vitamin C concentration is measured over a range of about 10,000 to 1 and so the final result can only be valid to about 50% (not 0.1%)!

So, rather than put up with all this harassment, we’re having our C- Strips made out-of-state. We apologize for delays or other problems that arise in the future, but, as you can see, the fault isn’t ours!