500 mg / 90 vcaps

1310  МКД

In stock

SKU: 038

Product Description


  • Threonic Acid & Alpha Lipoic Acid Enhanced
  • Buffered, Bioavailable Vitamin C

Vitamin C is best known as an antioxidant that can protect the body’s cells and molecules from damage by free radicals. NOW® AlphaSorb-C® includes Transport C-PLUS®, a trademarked combination of Threonic Acid-enhanced, buffered (non-acidic) Calcium Ascorbate with Alpha Lipoic Acid. Threonic Acid is a Vitamin C metabolite that has been shown to enhance cellular uptake of Vitamin C. Alpha Lipoic Acid functions as a free radical scavenger that can help regenerate Vitamin C in the body and may also enhance its utilization. With this unique formula, NOW has created a well-absorbed and highly biologically available Vitamin C supplement.

Supplement Facts
Serving Size: 1 Veg Capsule
Servings Per Container: 90
Amount per Serving % Daily Value
* Percent Daily Values are based on 2,000 calorie diet.
† Daily Value not established.
Vitamin C (from Threonic Acid Enhanced
Buffered Calcium Ascorbate)
500 mg 556%
Calcium (from Buffered Calcium Ascorbate) 60 mg 5%
Transport C-PLUS® (Trademarked blend of
Threonic Acid Enhanced Buffered Calcium
Ascorbate and Alpha Lipoic Acid)
650 mg
      Alpha Lipoic Acid 40 mg
Citrus Bioflavonoid Complex 100 mg
Acerola Powder (Malpighia punicifolia) (Fruit) 25 mg
Rose Hips Powder (Rosa canina) (Fruit) 25 mg
Rutin Powder (Sophora japonica) (Flower Bud) 25 mg

Other ingredients: Cellulose (capsule), Cellulose Powder, Stearic Acid (vegetable source), Magnesium Stearate (vegetable source) and Silica.

Not manufactured with wheat, gluten, soy, milk, egg, fish, shellfish or tree nut ingredients. Produced in a GMP facility that processes other ingredients containing these allergens.

Natural color variation may occur in this product.

Caution: For adults only. Consult physician if pregnant/nursing, taking medication, or have a medical condition.

Keep out of reach of children. Do Not Eat Freshness Packet. Keep in Bottle.

SUGGESTED USAGE: Take 1 capsule 1 to 3 times daily, preferably with food.

More information


NOW® AlphaSorb-C™ is a patent-pending formulation that combines the benefits of buffered vitamin C (ascorbate) with other antioxidants to create a product that specifically enhances ascorbate absorption, especially via the important glucose transport pathways. This makes AlphaSorb-C™ uniquely beneficial to the many millions of people with insulin resistance, or poor insulin sensitivity, who are prone to have poor ascorbate status, as well as for everyone seeking to improve vitamin C uptake into the bloodstream and cells. AlphaSorb-C™ is a nature-identical formulation designed to provide a more advanced replacement for the popular types of vitamin C developed years ago. It is available in a non-acidic, gentle form.


The decision to make these product advancements was based on a number of factors. Ultimately, the most innovative new formulas are being brought to the market as a result of ongoing research and advanced technology. Much has been learned about how vitamin C functions within the body, as well as which conditions provide the most optimal environment for its absorption and utilization. Over the past two years, NOW researchers closely monitored these findings in order to develop a formula that would set new standards for the efficacy of vitamin C and function-boosting co-factors.


One of the most significant findings involves the unique absorption abilities of threonic acid – a metabolite of ascorbic acid. An article published in the October 2007 Medical Science Monitor provided some of the most convincing evidence of the compound’s unique absorption abilities. A double-blind, placebo-controlled clinical study concluded that threonic acid had two very beneficial characteristics, First, it was shown to increase the amount of vitamin C that it is taken up by the immune system’s T-cells. Additionally, threonic acid was shown to increase vitamin C’s overall potency within the cells.


Based on these clinical studies and other scientific information, many loyal vitamin C users are now turning to threonic acid-containing formulas as a potent source of cellular protection. These findings, coupled with growing public interest in the potential of vitamin C metabolites, is what ultimately inspired NOW to develop AlphaSorb-C™. Realizing that absorption and utilization of vitamin C were key benefits that had to be provided by any new formulation, a theory was developed suggesting that vitamin C could be transported via active glucose transport pathways. This theory was found to be valid, and it was determined that said transport mechanism could be enhanced through proper formulation.


Human cell laboratory work demonstrated the benefits of AlphaSorb-C™ over ascorbic acid and a United States patent was applied for, specifically for the purpose of recognizing the compound’s unique mechanism of action. The efficacy of AlphaSorb-C™ is based on the unique combination of a non-acidic vitamin C plus certain metabolites, notably threonic acid and alpha lipoic acid.


The known benefits of non-acidic vitamin C and metabolites are combined with substances that stimulate vitamin C transport into cells, enhancing absorption into both the bloodstream and immune cells, while stimulating utilization by immune cells. Additionally, because of the ability of AlphaSorb-C™ to enhance vitamin C absorption via glucose transport channels, it is an ideal and suitable source of vitamin C for diabetics and those with blood sugar imbalances; individuals who traditionally struggle when it comes to maintaining healthy vitamin C levels.


Studies have determined that alpha lipoic acid may enhance the body’s ability to better utilize vitamin C in other ways, such as enhancing absorption through glucose pathways into cells, thus stimulating utilization in repair and protection activities.* Finally, this innovative new nature-identical vitamin C formula from NOW is 100% vegetarian, and has been enhanced with synergistic bioflavonoids to ensure that its active constituents are well-absorbed and highly effective. NOW® AlphaSorb-C™ is the culmination of ongoing advanced scientific research, and NOW’s dedication to improve vitamin C on a worldwide scale.

AlphaSorb-C™ is a patent-pending enhanced formulation that expertly combines non-acidic calcium ascorbate with the metabolite threonic acid, bioflavonoids (citrus bioflavonoids, acerola cherry, rosehips, rutin) and a specific ratio of alpha lipoic acid. This creates a unique product that meets the expectations of consumers, which is for their vitamin C to be gentle on the stomach and have better efficacy than pure ascorbic acid.


While sodium ascorbate shares many of these attributes, many consumers don’t like to take supplements containing added sodium, making that option less than ideal.


Additionally, the inclusion of alpha lipoic acid in AlphaSorb-C™ creates interesting synergies, both in terms of increased antioxidant activity and in the possible recycling of ascorbate back to the cells. This latter issue, the ability of alpha lipoic acid to improve the flow of ascorbate (as dehydroascorbate) via glucose channels into the cells where it can be readily “reduced” (reused as an antioxidant), is the basis of the patent claim. This research implies that cellular ascorbate status may be improved by the use of AlphaSorb-C™. The population with the best-known problem maintaining adequate cellular ascorbate status is diabetics; but it may also be an issue with pre-diabetics and possibly others who have blood sugar control imbalances.


This unique method of action, combined with the known benefits of mineral ascorbates, threonate (threonic acid) and bioflavonoids, makes AlphaSorb-C™ one of the top tier options on the supplement market today. Enhanced by a potential to help some of those most in need of ascorbate supplementation, there is no other product in this category with more potential.