Ingredients
- Vitamin C (as 100% l-ascorbates, fully reduced and buffered
- Calcium
Does Not Contain: Gluten, MSG, soy, yeast, dairy, GMOs, fillers, preservatives, synthetics, or other hidden ingredients. It is 100% plant sourced and safe for vegetarians. .
Supplement Facts
Serving Size: 1 Tabsule
Servings per container: 250
Amount Per Serving
%Daily Value
Vitamin C (as 100% l-ascorbate, fully reduced and buffered)
1,000 mg
1,111
Calcium (as ascorbate)
111 mg
9
Octanoate
10 mg
*
C16 and C18 alkyls†
20 mg
*
Vegetable fiber (organic croscarmellose)
40 mg
*
How to use

Daily Use:
1-2 grams daily in divided doses.
Optimal Use:
3-4 grams daily in divided doses.
High Stress Use:
5-8 grams daily in divided doses
How to Use:
1 tab = 1 gramQuestions:
Yes, but we recommend that you always consult your healthcare provider.
Yes, but pregnant or nursing mothers should always consult with their healthcare provider before supplementing.
No. It can be taken at any time.
The Science
- Bernardo D, Martínez-Abad B, Vallejo-Diez S, Montalvillo E, Benito V, Anta B, Fernández-Salazar L, Blanco-Quirós A, Garrote JA, Arranz E. Ascorbate-dependent decrease of the mucosal immune inflammatory response to gliadin in coeliac disease patients. Allergol Immunopathol (Madr). 2012 Jan-Feb;40(1):3-8.
- Appel LJ, Moore TJ, Obarzanek E, et al: A clinical trial of the effects of dietary patterns on blood pressure: DASH Collaborative Research Group. NEJM 1997; 336: 1117-1124.
- Taddei S, Virdis A, Ghiadoni L, et al: Vitamin C improves endothelium-dependent vasodilation by restoring nitric oxide activity in essential hypertension. Circulation 1998;97: 2222-2229.
- Heller R, Unbehaun A, Schellenberg B, Mayer B, Werner-felmayer G, Werner ER. L-Ascorbic Acid Potentiates Endothelial Nitric Oxide Synthesis via a Chemical Stabilization of Tetrahydrobiopterin. J Biol Chem 2001; 276: 40-47.
- Jaffe R. How to do an ascorbate (vitamin C) calibration (‘C Flush’) to determine personal need. HSC, January 2001.
- Dawson EB, Evans DR, Harris WA,Teter MC, McGanity WJ.The effect of ascorbic acid supplementation on the blood lead levels of smokers. JACN. 1999: 18: 166-170. Potent protection from atherosclerosis / ASHD: Lower your coronary and stroke risk by improved antioxidant, vessel health, and toxin reduction actions of PERQUE Potent C Guard. Homocysteine levels and risk are reduced; and aging is slowed by reduced free radical damage.*
- Carr AC, Zhu BZ, Frei B.Potential antiatherogenic mechanisms of ascorbate (vitamin C) and alpha-tocopherol (vitamin E).Circ Res 2000; 87(5): 349-54.
- Ames BN, Shigenaga MK, Hagen TM. Oxidants, antioxidants, and the degenerative diseases of aging. Proc Natl Acad Sci USA. 1993;90(17): 7915-22.
- McCully K. Chemical pathology of homocysteine. III. Cellular function and aging. Ann Clin Lab Sci. 1994; 24(2): 134-52. Raise cell energy and boost immune defense and repair competence with PERQUE Potent C Guard.*
- Anderson R, Smit MJ, Joone GK, Van Staden AM. Vitamin C and cellular immune functions. Protection against hypochlorous acid-mediated inactivation of glyceraldehyde-3-phosphate dehydrogenase and ATP generation in human leukocytes as a possible mechanism of ascorbate-mediated immunostimulation. Ann N Y Acad Sci. 1990; 587:34-48.
Jared –
I am super sensitive to corn, so most forms of vitamin C bother me. This is the first one I have tried that is spot on.
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Mav (verified purchase) –
Testing showed I was very low in vit c and I remembered seeing the detox c on the web site. Since being grain free my auto immune disease has improved so greatly I knew this would be the best choice. For the first time my family got sick and I didn’t catch it!!! Will definitely be a repeat buyer even when my c levels improve.
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Priva –
Really like this vitamin C. Been taking since September. This is the first time I have avoided catching cold during the holidays.
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Rose (verified purchase) –
This is a great product. This is the only vitamin C that I can take that won’t set off my sensitivities. Thank you Dr. O.
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Linda (verified purchase) –
Being Celiac and needing a True Gluten Free Vitamin C is right here at Gluten Free Society!! I feel much more at ease knowing that it is truly safe for me and my immune system runs much better!! Thank you Dr Osborne!!
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Liss (verified purchase) –
I was looking for gluten free supplements.. vitamin C for immune health, Help with Common Cold, helps with detox, helps with cancer, energy .. and most importantly gluten and additive free.. it is the best vit c supplement I have found .. no stomach or digestive issues .. truly perfect
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Melissa (verified purchase) –
I like knowing that this is a clean product and look forward to seeing the true benefits of this product during cold season.
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Lisa (verified purchase) –
So happy I found a vitamin c supplement that is gluten free. I am sensitive to corn and rice too so it was such a relief to finally find a vitamin I can feel,safe,taking. I work in a school with little guys all day so this has really helped with keeping my immune system strong.
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Question
Olivia –
What is the vitamin C derived from?
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Admin Peter Osborne –
Wild African potato root.
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Tina Furtek (verified purchase) –
Really do love this. I was dx with MS a year ago and it is important to me to keep my system as clean n healthy as possible. Gr8 product !
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Cyndi Carter (verified purchase) –
Love this product. I am corn sensitive so I can buy this with confidence. I can take this without any problems
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Rose Lulla (verified purchase) –
I love this product but don’t love the amount of broken tabsules that are in each bottle. Customer Service was good to replace one bottle that I called about but I shouldn’t have to call about every bottle. You pay for a bottle of 250 tabsules but only receive 220 or 230 that you can actually use.
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Donna Jimenez (verified purchase) –
Needed grain free and trust Dr Osborne products .
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Question
Emily –
Is this made from any sort of fermented food?
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L (verified purchase) –
Product just to support wellness.. best iof all gluten free.. great cust service
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Ruthie (verified purchase) –
No corn derivatives in this supplement and I take it year round for general good health.
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Dana Gilkison (verified purchase) –
I purchase this supplement from Gluten-free society because I can trust it to be gluten-free. I have Celiac Disease so it is important to know there is no gluten in the supplements.
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Gail (verified purchase) –
For those folks wanting/needing to be gluten free this is a GREAT product!! I love the tabsule as it goes down very easy.
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Gail (verified purchase) –
I love that you can buy with confidence that this is a true gluten free product. I take this product year around for better health!!
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Steph (verified purchase) –
I love all of the products I received from Gluten Free Society! It’s so difficult finding supplements without corn, especially Vitamin C. I’m so glad there’s a reliable source out there that is also decently priced. Thank you!!!!
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Angie –
I’m also looking for Vitamkn C for my kids. Can children use this product?
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Admin Peter Osborne –
Angie,
Yes this is safe for children. The tabsules are large, so children might have more difficulty in swallowing them. We do offer a powdered form that can be mixed with water.
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Cyndi (verified purchase) –
I am corn sensitive along with gluten and I love knowing this is corn free. I take it every day. Excellent product
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Gaby (verified purchase) –
Very pleased with product. Knowing “gluten free” is Dr Osborne ‘s passion, I am totally fine with paying a few extra $ to get a quality product. Easy to swallow (considering one gram). No broken tabs that I can see.
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jenlmgee (verified purchase) –
In the past, I had trouble with Vit C supplements, but I don’t have any issues with this supplement at all. No stomach pain when I take it…amazing!
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Edit Marton (verified purchase) –
Gluten Free Society’s supplements are very powerfull and impove your health. My cousins tried too and they also feel the power of it.
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Ann (verified purchase) –
I love that this product doesn’t have fillers. I have Celiacs Disease and multiple food allergies, sonit is hard to find supplements that don’t have all this fillers that I’m allergic to and have to stay away from. Thank you Dr. Osborne for creating a great products.
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jenlmgee (verified purchase) –
I absolutely love this vitamin C supplement! I have had trouble with Vitamin C supplements in the past (I suspect because most Vit C supplements are derived from corn, but this one IS NOT). Excellent product! Would not hesitate to recommend it to anyone.
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Question
Beverly –
What are the inactive ingredients in the vitaminc C pill
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Peter Osborne –
There are none. The label is full disclosure Berverly 🙂
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LAURIE (verified purchase) –
I have had trouble taking C especially in higher amounts and was very worried about this supplement. I was so happy with have no side affects from it.
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Question
Eileen –
The calcium is high in my blood. Is it okay to still take this supplement?
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Peter Osborne –
Eileen it is always best to consult with your doctor. Vitamin C does not impact blood calcium levels.
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Question
Doris –
What is octanoate and what is t fo? Thanks
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Peter Osborne –
Octanoate is an organic medium chain triglyceride – AKA, MCT oil. Helps with absorption.
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Question
Carie –
Is the vitamin C made from rose hips? Hope not. Good to see there is no corn in it. Thanks.
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Question
paolo –
What are the differences between Detox C – Gluten Free Vitamin C Supplement and Detox C
Gluten Free Vitamin C Detox Powder? Thanks
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Marianella Avila (verified purchase) –
Excellent product. keep my system Clean. I really recommend it!!!!
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Patti Boles (verified purchase) –
Love this vitamin C , easy to take and keeps me going strong
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Terrence (verified purchase) –
My battle with gluten is daily. Vitamin C is paramount in this struggle. It’s healing effect is my goto for leaky gut and other toxins.
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Sandie Webb (verified purchase) –
Feels good knowing I’m giving my body a quality, safe product
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Susette Higashida (verified purchase) –
Love this vitamin C. It is the only vitamin C that I can take because it is corn free. Whenever I tried other brands, they always gave me stomach pain, now I know why. It is because they were made of corn! Thank you Dr. Osborne for making this vitamin C corn free!
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Julie (verified purchase) –
I take this supplement for constipation and love knowing that the ingredients are free of fillers that could cause a reaction in my body.
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Wanda (verified purchase) –
This product is gluten free.Since I am gluten sensitive, then this is very important to me. I do not have to worry about the side effects of eating gluten laden products. I look forward to trying other gluten free products. Do you have a multi gluten free vitamin?
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Renata I Bowen (verified purchase) –
I’m so grateful for a vitamin C without corn, which I am very sensitive to.
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Perooz Garoian (verified purchase) –
I use it daily and I love the results.
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Allison (verified purchase) –
I’ve been taking this supplement for 1 month now in hopes to keep me healthy through the fall and winter season. It gives me reassurance to know that’s it’s completely gluten and grain free.All my family just got the flu where I didn’t get sick. I will definitely be refilling this.
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Carrie (verified purchase) –
😉
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Arthur (verified purchase) –
My nutritionist recommended that in addition to the meds for the illness, I should consider taking supplemental measures to strengthen my immune system. She recommended this product which I have been taking for more than a month now. Anecdotally, my rebound this time from the illness has been quicker and the frequent flare-ups as the disease recedes have been milder. If this is in part due to the Vitamin C I’ve been taking, then it has been well worth it!
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Bernadette M Fritz (verified purchase) –
the detox C caplets are excellent and keep me in good stead for the cold weather. Caps are large, but smooth and not really too difficult to swallow–just take plenty of water. All of Dr Pete’s items are clean and pure–that’s the best part.
thank you Dr Pete!
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anne ley (verified purchase) –
Great product. Helps with constipation. Would order again.
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Tiffany (verified purchase) –
L-ascorbate seems to be easy on the stomach. Great for anytime of the day with noticeable increase in energy after consumption.
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Carajeanne Whalen (verified purchase) –
I love detox C. Having a non corn derived C is a Godsend. I feel a little something coming on I take as much C til I feel better (and/or) bowel tolerance. Works every time.
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Debbie Hebert (verified purchase) –
I feel this is the only place to buy products .
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Claire Musso (verified purchase) –
I love your vitamin C and the magnesium is great!!
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Diandra (verified purchase) –
Been purchasing over the counter vitamin c but decided to try this one. Felt a huge difference when we take it verses a regular otc brand. I feel like it has made me feel allot better taking this vitamin c compared to others I have taken in the past. I have cytomegalovirus and can feel very lethargic so this has helped a ton. I take about 4 pills a day for this reason. I wanted the powder but they were out of that and got this one instead. Very happy with this choice and the price point is right on.
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Manar Jaradat (verified purchase) –
I’ve been using this product for 2 weeks so far… After I’ve reviewed this product from many people on Dr Osborne community website and asking more questions and get many answers I felt this product is absolutely good for me. My body became more resistant to viruses. It helped me to fight viral infection and helped me to flush out all the toxic out of my body.
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dan westphal (verified purchase) –
immune system builder, i works very vell
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Jennie Pacheco (verified purchase) –
I have now purchased second set of this product and it’s excellent. I have stomach ulcer history and it is not as harsh as other expensive vit c products out there. I recommend this product to anyone who might want to take C but afraid of the gastric effects. In addition it is Dairy free and I’m highly sensitive to casein so this is excellent.
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Joan Gajewski (verified purchase) –
It is very difficult to find a Vitamin C with no citric acid or corn. After reading his No Grain No Pain I discovered I had to do more than remove wheat, barley, rye. I looked at my supplements & realized I’ve been taking corn or rice products for years. I feel much better since removing corn/citric acid/ xanthum gum/ rice. I wanted the powder but it was out of stock. I will definitely buy the powder on my next order. I am buying Vit C for my parents to take as well especially with this coronavirus ordeal!
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Lani Smith (verified purchase) –
This is the only C I have found that is not made from corn which I cannot have; so I am very appreciative for this product. Dr Osborne is my favorite trusted doctor.
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Gail Lowe (verified purchase) –
At this point my husband and I are both taking this product. I chose this brand because I know Dr Osborne helped to create it. I trust that he uses the best source of ingredients to strengthen my body and protect me from immune issues. I can truly say that don’t readily see or feel a difference in the few weeks that I have been taking this Vitamin C, it is just peace of mind knowing it is benefiting my body.
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Jeannie (verified purchase) –
I take so many supplements that I don’t know what helps and what doesn’t, truthfully. I DO know that I have been taking Vitamin C for several years and find this formulation very much to my liking because I feel it’s a better C to take than others I have taken before, especially with the added ingredients. I’m taking 5000-8000 mg. a day in this time of possible disease everywhere, and I am VERY comforted knowing that my immune system is being helped by Detox-C.
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jabaur (verified purchase) –
These tabsules are giving me the efficient amount of Vitamin C that I need every day.
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Argentina Miller (verified purchase) –
I actually wanted the powdered vitamin c detox & ordered this by mistake. Because of covid19, I dared not return this product, so kept it & ordered a second batch of the powdered.. by then, Vitamin C was in short supply & I could only order one at a time.
I’m grateful to have this. My spouse & I each take several C tapsules through the day. We feel strong & well. Best Wishes for sustaining your good health.
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ROBERT G. (verified purchase) –
MY WIFE AND I ARE TAKING IT DAILY TO HELP PROTECT US FROM THE COVID-19 VIRUS.TO DATE,WE ARE IN GOOD HEALTH.WE BELIEVE IN THE BENEFITS OF DR. OSBORNE’S DETOX C AND WILL CONTINUE ORDERING IT.IT IS NON-CORN SOURCED WHICH IS EXCELLENT!!
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CRYSTAL PRIMROSE (verified purchase) –
I have been gluten free for 15 years now and was never informed about the importance of taking Vitamin C. I am so happy you have found you and your wonderful products! I have been taking 1000mg daily for two weeks with no issues and plan on upping the dose to stay nice a healthy during these uncertain times.
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