Ester-C Vitamin C 1000 mg Coated Tablets, 120 Count, Immune System Booster, Stomach-Friendly Supplement, Gluten-Free

(50 Reviews)
Product Id: 252738
Brand: Ester-C
In Stock
Sold Out
Free Shipping to United States (US) via FREE Standard Shipping Shipping time: 4-10 business days
Estimated delivery between Mon. 5. Oct and Sun. 11. Oct

Depends on the product properties you select

Shipping Info

Orders ship within 5 to 10 business days. All products are manufactured in the United States, orders handling time within 24 hours (up to 48 hours).

Buyer Protection

  • Full Refund, if you don't receive your order
  • Full or Partial Refund, if the item is not as described

5 Great reasons to buy from us:


  • Ester-C tablets give you immune system support at the cellular level for up to 24 hours to charge your immune system.(1) Ester-C is non-acidic, so it's stomach-friendly. Ester-C is gentle on your stomach so you can comfortably take it every day.
  • Ester-C tablets give your immune system the support it needs, while also providing your body with antioxidant vitamin C to help fight free radicals.(1) One tablet a day can give your body the immune support it needs 24/7.(1)
  • Ester-C also contains C-Sorb, a citrus bioflavonoids complex. Ester-C, along with C-Sorb & naturally occurring metabolites, works synergistically to enhance the retention of Vitamin C in your body, charging your immune system for 24 hours.*
  • Ester-C 1000mg tablets provide the immune support you can count on all day, every day.(1) A daily dose of Ester-C tablets gets absorbed into your white blood cells and stays there, for up to 24 hours, which is longer than regular Vitamin C supplements.(3)
  • Ester-C is manufactured without chemicals to neutralize pH, which means it's non-acidic & gentle on your stomach.(1) (1)These statements have not been evaluated by the FDA. These products are not intended to diagnose, treat, cure or prevent any disease.

Product Images

Ester-C Vitamin C 1000 mg Coated Tablets, 120 Count, Immune System Booster, Stomach-Friendly Supplement, Gluten-Free

From the manufacturer

Ester-C 1,000 mg Tablets

Ester-C 1,000 mg Tablets

Ester-C Tablets contain 1,000 mg of Vitamin C per serving and give you support you can count on all day, every day.† A daily dose of Ester-C gets into your white blood cells and stays there for up to 24 hours, which is longer than regular Vitamin C.** Plus, Ester-C is manufactured without chemical solvents to neutralize pH, which means it’s non-acidic and gentle on your stomach.†

At a Glance:

  • Maximum-strength 24-hour immune support†

  • Stays in the immune system longer than regular Vitamin C**

  • Non-acidic and gentler on your stomach than regular Vitamin C

  • 1 tablet a day is all you need

  • Suitable for vegetarians

Read more

Ester-C Features

Patented 24-Hour Immune Support Formula†

Supports Healthy Heart and Gums†

Gentle on Your Stomach†

Patented 24-Hour Immune Support Formula†

Ester-C is carefully formulated to contain naturally occurring metabolites. Metabolites are substances derived from compounds such as nutrients during the process of metabolism. The metabolites in Ester-C help enhance the retention of Vitamin C by your white blood cells, which are a vital component of your immune system.† Once you take your daily dose of Ester-C, it gets into your white blood cells and stays there for up to 24 hours, which is longer than regular Vitamin C.**

Supports Healthy Heart and Gums†

Ester-C stays in the white blood cells for up to 24 hours, helping to support antioxidant health, heart health, and healthy gums.†

Gentle on Your Stomach†

Ester-C is manufactured without chemical solvents to neutralize pH, which means it’s non-acidic and gentle on your stomach.

Read more

Immune Plus Probiotics Vitamin C Gummies Vitamin C, 1000 mg Immune Charge Gummies Immune Charge Effervescent

24-Hour Immune Support


Coated Tablets


Coated Tablets


Quick Dissolve Tablets


Special Features

6 Billion Multi-Strain Probiotics

Lasts Longer than Regular Vitamin C**

Lasts Longer than Regular Vitamin C**

Good For the Whole Family

Good For the Whole Family

Lasts Longer than Regular Vitamin C**

Stomach Friendly

ester-c logo


Non-GMO based on the ingredients used in the manufacturing of the product.

Note: For detailed ingredient list, please check the manufacturer website.

Patented Immune Health Formula, U.S. Patent Nos. 6,878,744 and 6,197,813

†These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

**Ester-C stays in the white blood cells for up to 24 hours, which is longer than regular Vitamin C. White blood cells are an important component of the immune system that need Vitamin C to act inside the body to help maintain health.

Read more

Product description

Size:120 Count (Pack of 1)

(3)Ester C(R) stays in your white blood cells for up to 24 hours, which is longer than regular vitamin C. White blood cells are an important component of your immune system. (1)These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose treat cure or prevent any disease

  1. After 2 years of not getting sick I finally did get sick. Could be coincidence but the only thing that changed was that I ran out of this vitamin C and purchased a generic store brand. This happened within a few weeks of switching.Update: 4/26/2015I still love this Vitamin C.I suffered from Cold sores since I was 16 years old, 2-3 times a year at least which was humiliating to be stared at by clients or on a crowded train. I’m not talking about a tiny sore, I’m talking a lip swollen twice it’s size with a sore. I would have to hide for 3 weeks at least until it went down and I did this several times a year. I look back at holiday photos, vacation photos, birthday photos, and there I am with a sore 🙁 Anyway, a few years ago my wife purchased Ester-C and left it on the kitchen counter. I took one each day not expecting much. I gradually realized that 6 months had passed with no sore, then 6 more. It was a miracle. I felt like I had been cured from a terminal disease and I had a new lease on life, no more hiding, no more humiliation. The bonus was the allergies and colds which I suffered from at least every 3 months with non-stop sneezing, those too were gone. I recently suffered from the flu and my lip formed a red area as if a sore was coming on. It was slightly swollen but it never progressed and it disappeared completely in 3 days. I ended up with the worst case of flu I have ever had in my life. I was sick for a month and it took another month to fully recover. I can’t promise that this will do the same for everyone else, I might have a deficiency which the vitamin C is helping me with. Then again it might help many. It’s worth a try.

  2. Since I started taking Ester C several years ago – I never get the common cold! It has been at least 8 years since I havehad a cold. Working in an elementary school, I was always exposed to germs. I had colds constantly. Since taking Ester C faithfully,everyday, I have not had one cold! Amazing product. My husband started taking it and he has had the same results. No colds for him in 5 years. I highly rec. this product.

  3. Curiously, the 90 cap bottle is cheaper per pill. Go figure. (Over time I’ve watched this price-per-pill fluctuate wildly; do the math before you buy and just get your best bang for the buck … but don’t assume that a greater quantity of pills will be a better overall valueI give this to my Newfies to help build soft tissue, especially around joints, especially after a recent cruciate repair. Recently I had shoulder surgery myself, and started taking 4gm daily. So far my recovery is about 5 wks ahead of schedule, the soft tissue mending way faster than expected, especially considering that I’m not a spring chicken anymore.Highly Recommended.One addendum: If you have a sensitivity to some of the additives in this (and, face it, in light of recent investigations into whether the supplement industry is being candid and truthful about what they do put in these sorts of pills), you might think about crystalline calcium ascorbate, the functional entity in Ester-C. Sold as Mild C (here on Amazon), just calcium ascorbate. Also handy for those that have difficulty swallowing pills. And a lot cheaper!

  4. I am sold on Ester C. I started taking them at the advice of a friend when I told her I was started waking up chronically I n the middle of the night to go to the restroom. She suggested this vitamin and it absolutely stopped that annoying issue with a couple of weeks. I can’t explain why or how but it worked. I have stopped taking my other vita c brand and take only this. Vita C has oodles of other benefits as well but this is my vita c of choice now. I don’t go a day without taking it.

  5. Accidentally ordered these, I usually get the 500 mg which does the job just as well for me. I don’t know if these are the reason, but I work in a hospital, and haven’t come down with anything that didn’t last a day or two since I started taking them. The reason for the 4-star instead of 5 is these are large “horse pills” and hard to get down.

  6. Ester-C 24 Hour Immune Support has been a life saver for me. I take it every day, and it really seems to do a great job. My entire family came down with the Flu. Everyone was sick for weeks but me. I was sick for less than 3 days! This also has seemed to be the case for other colds and such. I might get a little sick but its nothing compared to everyone else! I also really appreciate the fact that it is 24 hour support. You don’t find that from most Vitamin C brands. I’d say it is definitely a good buy and something I wont go with out.

  7. This is the best vitamin C I drink because its good for my stomach. I had the stomach surgery and it is non acidic and it helps especially since I have a history of ulcers and anything I can do to help is better than taking a cheaper generic brand of vitamin C. Its smooth to take and it works. Also a tip that I found which is irrelivent but it works for me. I get cold sores. But I don’t have break outs any more and don’t get them as I use to ALL the time. Maybe once every 3 years. When I feel one coming on. That tingling feeling. Take 1000 mg vitamin C in morning 1 1000mg Lysine and at night take 1000 mg of vitamin C and 1000mg Lysine. I know its a lot. Your body will extract it (don’t forget to drink water) and watch youll feel the tingle a bit might see a bit red in the spot the soar will come out but it will never FULLY come out and show the world look at my face. It really works. I got other remedies that works great. Home remedies that I have tried on my own. I passed this to a friend of mine and tried it and couldn’t believe it worked. Always keep vitamin c and Lysine on hand. Youll notice in the vitamin aisle lysine is always empty. Ask yourself why……maybe they know the trick. But it works. I tried all the other remedies. This one really works. My mom suffers from them a lot and does this and never has a break out. Especially in the line of work she don’t want it to show. But this vitamin C is good for your stomach and dissolves fast. My levels (blood) always come back good. SO yes its worth it. I use to buy at Costco a BIGGER bottle cheaper price but they will not carry no more. So this is the best price I found on the net. 🙂 Hope this helps.

  8. I take this for joint and muscle pain, especially during the damp winter months. It seems to lighten the inflammation. I am not a doctor, but I can admit to finding significant of relief using Ester C. Great product!

  9. No tummy upset. I ordered these and took while my husband was ill and I did not get sick. Continue to take these daily to keep from getting the “creeping crud” that is out and about in the world.

  10. I have been taking Ester C for years now. I usually swallow a handful of vitamins in one swallow. But, these are enormous!!! A little hard to swallow. But, I still live the product

  11. I’ve been taking these for years! 3-4 daily. Overall– if you want to stay healthy and avoid colds, etc. this will help!. Our bodies are all different but for me at least, this product has really boosted my immunity. (Knock on wood….no cold for several years now! I’m convinced. :)Thank you!

  12. I really try to never give anything 5 stars unless it’s out of this world!!! I purchased this product to give me an extra boost of Vitamin C because I was tired of picking up every one’s cold at work! I feel it’s doing the job so far. This winter will tell for sure. The major negative for me, is that it’s so hard to swallow! The pills are very large, even cut in half. I just happen to be one who is very sensitve to this problem.

  13. Excellent product. I have been using for a few years after my doctor told me about them. I have not had any colds or flu and I don’t take any shots. Like I said Good procuct.

  14. The product is excellent but getting to it is a challenge! They need to go to another type of security seal on the lid, the one they use is the most difficult one in the industry to get open … especially for people with hand or finger problems.

  15. I normally buy the 500mg at Rite Aid but figured I’d give this a try. These pills are huge, so if large pills are an issue for you, I would reconsider. I’ve been taking Ester C for years and have gotten sick a whole lot less than ever. Any time I feel like I may be coming down with something, I take this and it goes away. If I do get sick, my turnaround time is shortened I feel. I’m always recommending this product to co workers and friends.

  16. Well, so far I have not gotten sick since taking this stuff. I don’t know how much of my health is the result of a placebo effect. These pills are made for horses. I tried to swallow with food. bad Idea. I took some water and/or tea. Started to gag and choke. Pill is WAY to big. You can also use these pills to plug your ears if it is too noisy or your nostrils so you don’t inhale any kind of bacteria or viris.

  17. We all need the occasional hit of Vitamin C and 1000 Ester C tablets are the way to go!

  18. Working in the healthcare industry, I’m exposed to a lot of different Illnesses. I wanted something to boost my immune system! I personally, after talking to my Doctor, started taking this daily over 2 years ago. With proper hand washing and this as a booster, I’ve not caught the rounds of noroviruses and influenza going around. I can’t say it was this medication or a combination, but I’m not nearly as sick as I was prior to taking Ester C. It’s a necessity for my personal health.

  19. Everyone around me is getting sec, but not me. This is my secret weapon in my arsenal. I find drinking lots of tequila also helps keep me healthy. I am not sure if it is this combination for one over the other, but I am not about to stop either one Do you find out which one is really working

  20. Dr. told me to start taking 1000mg of Ester C about 6 months ago. I feel like it has had a positive affect on my immune system.

  21. I am a teacher and I got really sick this past year. I friend told me about this product. I was sick for almost a month and once I started taking this product, I was feeling better within a week. I take it everyday and it helps that amazon automatically ships it every 90 days.

  22. Great product and easy on the stomach.

  23. my wife is the one taking them and i can asure than since the first she does not have the same flu like sytntoms since, very good product

  24. I am 72 years old and have had sharp pains in my knees for quite a few years when going down stairs, and lately have been developing some of the pains of developing arthritis. My friend suggested taking 2000 MG of this supplement for 10 days and then 1500 MG after that. So, I decided to take her advice and try it. I swear, after the 10 days, there was no more pain in my knees. One night I took a full 2-gallon watering can and a 1 gallon bottle of water downstairs at the same time and held on to the railings anticipating pains in my knees – there was no pain!! Since then, there has been no pain in my knees and they feel stronger.I later found out with some research that Ester-C helps to build joint tissue and can help to reduce the pain of arthritis. This seems to hold true since the stiffness in my finger has lessened since I have started using this supplement. I take a few supplements, but I have honestly not come across any other supplement that showed any results so quickly. I am a believer in this one, and it is good for much more than the immune system.The only downside I can think of is the size of the pill. It’s huge, and it sometimes takes me a couple of tries to swallow it. I am also giving this supplement to my 98-year-old mother, but for her, we crush it and add it to her supplement cocktail.UPDATE 11/24/18:I have been taking Ester-C for 2 months, and the pain in my knees is completely gone as well as the shakiness I used to have in my knees when I went down stairs. I have also noticed that my finger joints are no longer locked when I get up in the morning, and the sharp pains I had in one of my fingers has not been happening. I can’t say that this supplement helps with arthritis, but I have definitely had some improvement with joint pain and locking of finger joints.UPDATE 10/18/19:I have been taking Ester-C for a little over a year, and the benefits described above are still evident. Although i still use this supplement for my 99 year old mother who gets it pulverized in a vitamin supplement, I had a hard time swallowing the huge pills. So, I found another brand that still provides 1000 mg but in a capsule. The capsule works as well for me, but I don’t gag trying to swallow it.I hope this review was helpful for you. I will update the review if my opinion changes.

  25. I’ve been using this for years now , rarely get sick , I contribute that in part to this supplement . Recoomend

  26. I love the formula of the Ester C vs the other formulas. This makes me feel like it is safer and it is more gentle on the stomach. I have been using this for years and I notice a difference when I run out vs when I take it every day.

  27. Best way to get our Vitamin C. We have used Ester C for 15 years. Amazon delivery is Speedy, next day delivery, where I live.

  28. I swear by this! And I don’t write reviews. Haven’t had a cold/sore throat or sniffle since I’ve began taking this—and it’s been 18 months.

  29. I swear by these vitamins! There amazing and keep me from getting sick, I have half my office on these and all my family & friends. They work like magic just take one of these b4 u feel a cold coming on or if your around anyone sick & you won’t catch anything. Just be careful when swallowing them they are large vitamins. But I highly recommend!

  30. Great bargain price for a spectacular product! At this price, I bought for my family members (siblings) as well as myself! Read that Estrr C was so much better but was also very pricey INTIL NOW!

  31. Great value. I generally can not tell the difference of taking vitamin supplements, but I will keep taking vitamin C, D and fish oil to make me feel better getting enough nutrients.

  32. I take this every day and while everyone else around me was getting sick, the most I got was a running nose. keep that vitamin c right up… now just gotta get some D.

  33. I use it daily to give my inmune system a boost, LOVE IT!!Going through my 4th bottle. Great product.

  34. Have used this brand for years, really like ester-c, no bladder irritation.

  35. 25 years ago I started taking Ester C and almost never get sick, no colds or flu even when everyone around me is sick. Friends call me ‘Borg’ from Star Trek, the only alien to be undefeated. Sorry for being a nerd.Ester C daily = healthy happy lifeLOL

  36. These are good for someone who is sensitive to the acidity in regular vit C, but it seems they could make them smaller, I don’t understand why they need to be so huge

  37. Ester-C Vitamin C 1000mg coated tablets are a must have for people like myself who have celiac disease and vitamin B deficiencies. The product is a great boost to my immunodeficiency. One should always consult a physician before you go on any OTC product.

  38. I take this year around. As a nurses aide, I’m always in contact with people specially very sick people. The price it’s very good and have been taking this for several years now and had not got sick ones

  39. to take only one vitamin product of the many I take it would be Ester C. Fast shipping

  40. Perfect can’t beat it for the price cheaper than anywhere I can find in town. Highly recommend

  41. I have used this for years, A doctor told me about this and it works .

  42. I like that this product gives you a vit C boost that last 24 hrs. I do find the pill hard to swallow, but I will still use the product

  43. This product is awesome! I work in a primary care medical clinic and have been taking it for the past several years and haven’t been sick with colds or flu. It definitely boost my immune system.

  44. I’m sorry to all of you who hate large pills. However, nobody said combatting sickness was going to be a walk in the park or comfortable, right? I give this brand 5 stars because it works. My immune system can take a dive sometimes and when I get sick with a cold, I’m miserable so when I feel like one is setting in I take these. If you are already sick it does help the recovery, however if you are at the beginning stages and have the first signs of a cold, these are EXCELLENT at warding it off! Anytime someone in my household even remotely mentions they’re starting to feel ill, i pass these puppies out like candy all the time. It even at one time helped my dad to ward off what I think was a flu virus going around in his office. I’m not a doctor but on the first onset of a cold, I gulp down 2 tablets in one day, and then just the normal 1 tablet per day afterward until i feel okay. I personally take them even when I’m not sick as a supplement but I tend to double up if I think I’m getting sick. You may experience a little diarrhea but not too bad. These things work and they can even give you a bit of energy. They are a staple in my home. If the pill is too big just break it in half. I haven’t found another Vitamin C out there to work as well as this one. Note: I tried the capsule version of Ester -c (I think they are 500 mg) , i don’t know what it is but the tablet version of 1000 mg that say 24 hour are the ones that work. So if your gonna buy it get the tablets and to those who hate large pills, sorry but your best bet is to just break them in half or choke them down. And for further reiteration, this works its best as a preventative measure. So that means if you’re one of those people who tend to get understandable lazy when they get sick and unwisely let colds become full blown before you start to take something and then complain about it not miraculously curing you at the peak of your cold, don’t bother… or better yet at least just take it while your feeling fine as a supplement everyday for early cold prevention lol.

  45. They do make a smaller size now, 500 mg. I just found it now . I am taking two of them instead of 1000 mg, very happy with this vitamin C! Good stuff @ good price!

  46. Take one of these every morning and haven’t been sick yet. 1000 mg pills are a bit big so might need to cut them if you have trouble swallowing pills.

  47. This is my fav vitamin C because it’s not acidic, and for someone like me who has horrible insomnia and sleeps less than 5 hrs most nights, it SERIOUSLY helps me stay energetic and power through tough exercise without getting worn down. My holistic doctor recommended this vitamin C years ago and I’ve been taking it daily ever since! Vitamin C is great for iron absorption and helping the body produce more white blood cells. I almost never get sick anymore and have tons more energy and also helps keep me regular on the toilet

  48. I keep these on hand especially with the flu season coming up I take one in the morning and one at night and it really does help to keep you from being sick.

  49. Excellent price for these ester-c vitamins.

  50. I choose these over emergency C or other Vit C because it’s time released. Vit C is a vitamin which if not needed at the time it’s digested will not be stored in the body for later use. So a timed released option works better for me.

Add a review

Related Products