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EsterC

24 Hour Immune Support, 1,000 mg, 90 Vegetarian Coated Tablets

4.9 · 294 reviews
1,386 ₽

Supports Upper Respiratory Health The Better Vitamin C ® 1,000 mg Maximum Strength Non GMO Clinically Studied Vitamin C Stomach Friendly Dietary Supplement Suitable for Vegetarians Immune & Upper Respiratory Health Support Ester-C® is the unique immune health formula containing a proprietary, clinically studied Vitamin C that stays in your immune system for 24 hours. † Ester-C® Vitamin C is clinically shown to last longer than regular vitamin C. That's because Ester-C® Vitamin C is carefully formulated to contain vitamin C metabolites, the same metabolites that are naturally produced by your body and help enhance the retention of vitamin C by your white blood cells, a vital part of your immune system. So once you take your daily dose of Ester-C® Vitamin C, it gets into your white blood cells, and stays there - for up to 24 hours. Vitamin C also contributes to the health of your upper respiratory tract, plus, Ester-C® Vitamin C is manufactured without chemicals to neutralize pH, which means it's non-acidic and gentle on your stomach. Ester-C® is kind of support you can count on 24/7! Ester-C® Vitamin C lasts longer than regular Vitamin C in White Blood Cells over 24 hours! † Enjoy the benefits of Ester-C® Vitamin C every day! 24 Hour Immune Support Clinically studied to last longer than regular Vitamin C† Non-acidic and gentle on the stomach Supports upper respiratory health Potent antioxidant support Not all Vitamin C is created equal ... There is only One Unique Ester-C® formula †Ester-C® Vitamin C has been clinically studied to stay in your white blood cells for up to 24 hours, which is longer than regular Vitamin C. White blood cells are an important part of the immune system.

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Supports Upper Respiratory Health The Better Vitamin C ® 1,000 mg Maximum Strength Non GMO Clinically Studied Vitamin C Stomach Friendly Dietary Supplement Suitable for Vegetarians Immune & Upper Respiratory Health Support Ester-C® is the unique immune health formula containing a proprietary, clinically studied Vitamin C that stays in your immune system for 24 hours. † Ester-C® Vitamin C is clinically shown to last longer than regular vitamin C. That's because Ester-C® Vitamin C is carefully formulated to contain vitamin C metabolites, the same metabolites that are naturally produced by your body and help enhance the retention of vitamin C by your white blood cells, a vital part of your immune system. So once you take your daily dose of Ester-C® Vitamin C, it gets into your white blood cells, and stays there - for up to 24 hours. Vitamin C also contributes to the health of your upper respiratory tract, plus, Ester-C® Vitamin C is manufactured without chemicals to neutralize pH, which means it's non-acidic and gentle on your stomach. Ester-C® is kind of support you can count on 24/7! Ester-C® Vitamin C lasts longer than regular Vitamin C in White Blood Cells over 24 hours! † Enjoy the benefits of Ester-C® Vitamin C every day! 24 Hour Immune Support Clinically studied to last longer than regular Vitamin C† Non-acidic and gentle on the stomach Supports upper respiratory health Potent antioxidant support Not all Vitamin C is created equal ... There is only One Unique Ester-C® formula †Ester-C® Vitamin C has been clinically studied to stay in your white blood cells for up to 24 hours, which is longer than regular Vitamin C. White blood cells are an important part of the immune system.

Customer reviews

5.0
verified purchase
Only trust Ester-C branded Vitamin C!

I have been taking Ester-C Vitamin C for a few years now, few months before the start of COVID 19 actually and it really does boost and protect your body immune system.

1/8/2026
5.0
verified purchase
최고!

Quality is super! The ingredients are great! Size arranged! What you need! Performance is felt! the product arranged, perfectly packed, the effect is definitely there! I will order more! Just as quickly delivered

12/23/2025
5.0
verified purchase
Best Vit C!

My nutritionist recommended this brand, and I’m glad they did! Excellent quality. Easy to digest. No stomach issues. Just one pill a day does the trick to boost immunity!

12/11/2025
5.0
verified purchase
Stomach‑Friendly High‑Potency Vitamin C You Can Take Every Day

Ester-C 24 Hour Immune Support 1000 mg is a convenient, once-daily vitamin C supplement that aims to provide round-the-clock immune support using a non-acidic, stomach-friendly form of vitamin C. Each serving delivers 1000 mg of Ester-C, a patented, buffered vitamin C that is clinically studied to stay in white blood cells longer than regular ascorbic acid, which may help maintain consistent immune protection over 24 hours. The vegetarian coated tablets are non-GMO and designed to be gentle on digestion, making them a good option for people with sensitive stomachs who still want a higher-potency immune supplement. Ester‑C is a gentle, non‑acidic form of vitamin C that is easy on the stomach, making it a suitable choice for almost everyone who wants to increase their vitamin C intake.

11/27/2025
5.0
verified purchase
Good

This melatonin quality product is amazing! It has helped me sleep better, falling asleep easier and waking up feeling refreshed. Whether it's jet lag or insomnia, it's my savior! Highly recommend to anyone who needs to improve their sleep!size ingredient joint muscle taste hormone mineral dosage benefit good.

11/25/2025
5.0
verified purchase
Прекрасно!

Thank you very much for this product, it suited me, I like the packaging, comfortable and stylish, I will order more of these products, and recommend them to all my friends and relatives! good!!

9/11/2025
5.0
verified purchase
Essential for immune health

Such an excellent product. I have been on this for years. 8,000 mg in winter and 6K in summer. Essential for flu season. Reduces duration and severity of flu and other viruses.

9/11/2025
5.0
verified purchase

good quality vitamins,complete ingredients,suitable for my age and big size

9/7/2025
5.0
verified purchase
Essential

A no brainer for the immune system. It reduces severity and duration of viral infections. The average human uses 6-8K mg a day. Do not waste money on overpriced skin care. Vit C is a potent antioxidant and the skin is the largest organ. The ester C does wonders for the skin. Build up to the 6 K mg. I take 8 in flu season.

9/3/2025
5.0
verified purchase
The doctor is prescribed

I'm waiting for the react to my immune system

8/29/2025