Jigsaw Vitamin C w/SRT® - A premium vitamin C supplement.

Jigsaw Vitamin C w/SRT®


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    • Product Description


      Supplement Facts

      Active Ingredients: Vitamin C (as ascorbic acid), L-lysine HCl.

      Suggested Use: As a dietary supplement, take 4 tabelts per day with food. Divide doses if desired, or as directed by your health care provider.

      Caution: People who have a high risk of kidney disease or disorders of iron metabolism (iron overload) should avoid large doses of vitamin C and consult your doctor or nutritionist prior to taking supplementation.


      Jigsaw Vitamin C w/SRT contains:

      • No artificial colors or dyes
      • No yeast
      • No preservatives
      • No carnauba wax

      The Two Most Important Words For Enhanced Immune Response: Vitamin C*

      • Enhance immune system response*
      • Powerful antioxidant support*
      • Premium Vitamin C & L-Lysine
      • Proprietary Sustained Release Technology (SRT)

      "...hands down the best Vitamin C supplement I've ever taken... I've always had digestive problems when I've taken high amounts of vitamin C... but so far with this vitamin C, I have had absolutely NO hint at all of stomach issues!"

      sustained-release-vitamin-c-dissolution-graph.pngWhat is Sustained Release Technology (SRT) And Why Is It Important?

      Sustained Release Technology means that the vitamin C slowly releases into your body over a 6 hour period, thus avoiding the common side-effects of diarrhea and upset stomach caused by most high-dose vitamin C supplement products – effectively acting as a buffering agent.

      This slow release is especially important because vitamin C has a very short half-life (about 30 minutes), meaning it leaves the body very quickly and therefore needs to be delivered in a constant stream to maintain levels that promote optimal health.

      Instead of the vitamin C being dumped into your system all at once and wasted/excreted (like with a non-time release vitamin C supplement), your body is able to continually absorb what it needs, distributing it throughout the body to perform its many critical jobs. 

      What Can Vitamin C Supplements Help Me With?*

      • Support the immune system, promote healing and protect cells from daily wear and tear.*
      • Build and strengthen collagen to provide essential support for the blood vessels, arteries, ligaments, bones, gums, and teeth.*
      • Support healthy metabolism and energy production by making carnitine, the amino acid responsible for transporting fat to mitochondria for conversion to energy.*
      • Promote brain and eye (retina) health.*
      • Maintain healthy heart function and overall cardiovascular health.*
      • Support arterial health*
      • Regenerate other antioxidants like vitamin E and CoQ10.*
      • Neutralize oxidative damage caused by free radicals and protect cells from wear and tear.*
      • Support artery and blood vessel flexibility*
      • Promote adrenal gland function, which uses large amounts of vitamin C, to support the body's healthy stress response.*
      • Support production of norepinephrine, a neurotransmitter critical to brain function that's known to affect mood.*

      Why do we need vitamin C?

      Unlike most mammals who produce their own vitamin C in very high amounts (and even more under stress), humans do not have the ability to manufacture their own vitamin C. Interestingly, we have 3 out of the 4 enzymes needed to make vitamin C, but the 4th enzyme is turned off — the gene that made the 4th enzyme mutated and is no longer expressed in humans. Therefore, we must obtain vitamin C through our diet and/or a vitamin C supplement in order to support proper health.

      What happens when the body is running low on Vitamin C?

      According to the National Institutes of Health, too little vitamin C can lead to serious health challenges. Low Vitamin C levels can affect several body parts and systems, including:

      • Hair health and texture*
      • Gum and dental health*
      • Dermal (skin) health and texture*
      • Wound-healing process*
      • Bruise recovery*
      • Joint health*
      • Red blood cell health*
      • Immune system response*
      • Metabolic rate*

      Can You Replenish A Deficiency Taking Only The Recommended Daily Allowance (RDA)?

      No. The RDA is the minimum required to avoid scurvy, not the maximum needed for good health. As in all cases, "deficiency" is not something that's digital – meaning you either have it or you don't – it's a matter of degrees. Researchers are proving the many ways in which "sub-clinical scurvy" (meaning you are deficient but not immediately about to die) is significantly detrimental to health and makes the body vulnerable to various kinds of damage.

      Why is Lysine included?

      Lysine, or L-lysine, is an essential amino acid, which means that it is necessary for human health but cannot be made by the body. Amino acids are the building blocks of protein. Lysine is important for proper growth, and it plays an essential role in the production of carnitine; a nutrient responsible for converting fatty acids into energy and helping to lower cholesterol. Lysine appears to help the body absorb and conserve calcium, and it plays an important role in the formation of collagen.*

      Lysine supports a healthy immune system response. Taking lysine supplements can support recovery time and reduce the chance of recurrent health challenges. Lysine also plays a role in supporting arterial health. Lysine is one component of a protocol proposed by Linus Pauling to promote optimal heart and immune health.*

      What Makes Jigsaw Vitamin C w/SRT® So Special?

      • The first vitamin C supplement totally designed to be taken in high doses.
      • The only vitamin C supplement in the world that combines pure ascorbic acid with L-lysine into a timed-release formula.
      • Provides a continuous delivery of vitamin C to the body, allowing for optimal utilization.
      • No digestive side effect like most other high-dose vitamin C supplements.
      • Coated, easy-to-swallow tablets with optimal dissolve rate.
      • Delivers 1 gram of ascorbic acid per tablet.
      • Requires fewer tablets per day than other timed-release options
      • As little as $0.12 per gram.
    • Product Reviews


      Write A Review

      1. Tablets too big

        I've only just started this product as I had to use up another product I had. I was horrified to see the size of the tablet, it is not huge but for me it is rather large. I've choked several times on larger tablets so am petrified of swallowing them. I have to cut them up. I don't know if this ruins the slow release but I cannot do anything about that. The size of the Magnesium slow release are perfect for me to swallow. I would have given 5 stars but for the large tablets. I think it's a great product considering it is slow release.


        Alda, yes, I'd have to agree with you, the Vitamin C w/SRT tablets are on the large size. As you noted, Jigsaw Mag w/SRT tablets are about 1,000mg in size, a very managable size for most. But the Vit C w/SRT tablets are about 1,250mg in size in order to deliver 1,000mg of Vitamin C & 100mg of Lysine per tablet.

        However, it is ok to cut the tablets in half as the SRT will still do it's job of breaking the tablet down slowly. Just don't grind it down into a powder as that would ruin the SRT.

        Otherwise, if that's too much trouble, please do contact us at 480-0951-0840 so that we can get your a full refund. -Patrick Sullivan Jr., Jigsaw Health CEO
        on 24th Nov 2016

      2. Can take between 4 and 8g a day w/ NO diarrhea!

        This is hands down the best Vitamin C supplement I've ever taken. I bought this as soon as it came out a couple weeks ago. I was VERY excited about it being sustained-release because I've always had digestive problems when I've taken high amounts of vitamin C. There's a ton of research supporting the benefits of higher doses, but I could never follow it because taking that high of a dose (even just 1 or 2 grams a day) always gave me diarrhea. Super frustrating! But so far with this vitamin C, I have not had a single emergency bathroom stop! I took 2 tablets - which is 2 grams! - right when I received it, and I had absolutely NO hint at all of stomach issues! Took another 2 at night like the suggested use says to do, and still great. After a couple days, I increased to taking 4 pills at a time to test that dose out, and still no problems at all! I'm so thankful for this product and SO excited that I finally found a vitamin C I can take a lot of!! Can already tell a boost in immunity while everyone around me is getting sick. And I'm also seeing an improvement in my skin healing quicker too, which is a bonus. Feel more energized and like I've been bouncing back better from stressful stuff in life. Love that. Thank you Jigsaw for creating it... All of my family members are getting a bottle for Christmas. :) on 23rd Jan 2015

      3. Super effective, no tummy-troubles, high dosage in small pill

        Jigsaw's C w/srt has been a boon to my family's health. We've been taking it regularly without any tummy upset (1000 mg for the kids and 2000 mg for the adults). When any of us has experienced a hint of something coming on - a scratchy throat or extra phlegmy-ness - we've added on regular dosing throughout the day. In the throes of winter and all of us are still hale and hearty! on 23rd Jan 2015


        This is some magical Vitamin C, beyond explanation. It gives me energy! :) on 23rd Jan 2015