Contract Manufacturing

Quest provides contract-manufacturing services for strategically selected partners. We can contract manufacture existing products from our portfolio and also custom develop and manufacture new products, formulations and concepts for our partners. All the products are manufactured and quality tested in our GMP facilities.

We have the following contract-manufacturing capabilities:

  • Tablets and/or capsules nutraceutical products in bulk, bottles or blister packs.
  • Powder nutraceutical products in bulk or sachet packs.
  • Liquid nutraceutical products in bulk or bottle packs.

Buffered C

Low acidity. Gentle on the stomach, with bioflavonoids to support immune health

Quest Buffered C is a low acid vitamin C supplement for those who cannot tolerate too much acid. Vitamin C is an antioxidant nutrient that contributes to the protection of cells from oxidative stress and to the normal functioning of the immune system. As a water soluble nutrient vitamin C supplies in the body are used up quicker under stress leading to a lowering of immune function and increased incidence of infections. Low levels are also associated with an increased risk of stroke and cardiovascular disease. Vitamin C helps towards collagen formation for many body tissues including skin, gums, teeth and cartilage found in joints. It enhances the absorption of iron in the body and is involved in energy metabolism and contributes to the reduction of tiredness and fatigue.


  • A low acid vitamin C supplement
  • With added bioflavonoids to increase absorption of vitamin C
  • Quick release tablet designed to provide full potency within 30 minutes for swift tissue saturation


One to three tablets daily with food.


Calcium ascorbate, Bulking agent (microcrystalline cellulose), Citrus bioflavonoids (with maltodextrin), Anticaking agent (magnesium stearate), Glazing agent (hydroxypropylmethylcellulose).

Relevant Products