Isotonix® Vitamin C

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Provides antioxidant protection Supports a healthy immune system Maintains skeletal, muscle, cardiovascular and skin health

by: Isotonix®

4.9
(86)
$57.00 SGD
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Single Bottle (90 Servings)

SKU: SG13033

Buy Now: $57.00 SGD
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  • Antioxidant & Immune Support
    It’s not just about getting vitamin C — it’s about getting optimal value from it. Immune, cellular, and antioxidant support delivered in a highly bioavailable form that aligns naturally with your body.

  • Active Ingredients: Vitamin A (as beta-carotene), Vitamin C (as ascorbic acid), Potassium (as potassium bicarbonate).

    Other Ingredients: Fructose, glucose, maltodextrin, malic acid, orange flavor, silica, citric acid, stearic acid.

The Vitamin C Advantage

105 mg

The recommended daily allowance for vitamin C is 105 mg for adult males.

85 mg

The recommended daily allowance for vitamin C is 85 mg of adult females.

Isotonix® Vitamin C contains 500 milligrams of vitamin C per serving — an optimal amount for immune system maintenance.

image of citrus fruit

Vitamin C, A Widely Recognized Nutrient

Vitamin C (ascorbic acid) is a water-soluble nutrient that provides antioxidant protection and supports a healthy immune system. This vital nutrient helps protect the body against oxidative stress and serves as an important cofactor that maintains skeletal, muscle, cardiovascular, and skin health. It is an ideal everyday choice to complement your diet, support healthy connective tissues like collagen, and fulfill your body's daily nutritional requirements.

Product Classifications

Image of wheat with a line through it

Gluten-Free

image of Vegan

Vegan

image of glass containing liquid

Isotonic

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No Detectable GMO

Key Ingredients & Their Benefits

image of oranges
Vitamin C (Ascorbic Acid)

Provides antioxidant protection

Supports cardiovascular health and the immune system

Serves as a co-factor in the synthesis of collagen

image of bananas
Potassium (Bicarbonate)

An essential mineral that helps to keep fluid balance

Supports nerve and muscle health

image of carrot
Beta Carotene (Vitamin A Precursor)

Can be converted into vitamin A by the body

Helps to maintain healthy eyes and immune system

Antioxidant Support

Isotonix® Vitamin C distinguishes itself on the market, providing rapid and efficient absorption of nutrients upon ingestion. Isotonix® Vitamin C provides enhanced delivery of the nutrients your body needs in a remarkably cost-effective way.

Directions for Use

Person pouring a capful of Isotonix Vitamin C into a glass.

Pour one small capful (3.3g) of Isotonix Vitamin C powder into your favorite cup.

Person mixing Isotonix Vitamin C in same glass of water.

Mix: Add 2 fluid ounces (60ml) of water per capful and stir until fully dissolved.

Person drinking Isotonix Vitamin C.

Enjoy: Drink once daily on an empty stomach for maximum absorption, savoring the refreshing citrus flavor!

:05 Minutes

Isotonix Liquid Vitamins

  • Formulated to survive digestion.
  • Delivers concentrated nutrients to the site of absorption.
  • Contains no fillers or binders.
  • No artificial color or flavors. 

:40 minutes

Standard Vitamin Tablet

  • Contains lab-created coatings and lubricants.
  • Often contains artificial colors, nutrients and flavors.
  • Limited absorption of nutrient utilization. 

Frequently Asked Questions

  • Yes. Vitamin C is known to be able to support the immune system and is an antioxidant.

  • Individuals who wish to supplement their diet or those who wish to support their immune system can use Isotonix® Vitamin C. Consumers with pre‐existing conditions should seek advice from their healthcare professionals.

  • At high doses (over 1000mg/day), some people can experience gastrointestinal side effects such as stomach cramps, nausea, and diarrhea.

  • Isotonix® Vitamin C is for ADULT USE ONLY. Pour 1 level, white bottle capful of powder into the overcap. Add water to the line on the overcap (2 fl. oz./60 ml) and stir. As a dietary supplement, take once daily or as directed by your healthcare provider. Maximum absorption occurs when taken on an empty stomach. This product is isotonic only if the specified amounts of powder and water are used.

Reviews

Customer Reviews
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Displaying reviews 1 - 5 of 86

by Anonymous

Isotonix VitC

Have been taking this product for over 15 years. My wife and I love it. Its an antioxidant and protects and supports my immune system.

Response from Customer Service:

Thank you so much for your wonderful review! We're thrilled to hear that you and your wife have been enjoying Isotonix® Vitamin C for over 15 years. Your continued support and feedback mean so much to us. Thank you for making Isotonix® a part of your daily routine and for being valued members of our community!

by Anonymous

Easy to drink

Easy to absorb as compare to pill. And the taste is good.

by Anonymous

Best for Immune Health

I have been taking vitamin C for so many years but this is unlike the rest. My kid no longer fall sick easily after starting this Isotonix Vitamin C. Definitely a great booster for immune health

by Anonymous

Repeated purchase

Taste great and easier to take than those pill vitamin c

by ho

  • Shop Consultant
Great for Skin Health

I like how this Vitamin C doesn't taste too sweet and taking it on a regular basis, i notice my skin looks brighter

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