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Explore our top-selling bulk ingredients trusted by leading dietary supplement brands worldwide.
A cornerstone ingredient in the global dietary supplement industry — scientifically validated, highly bioavailable, and versatile across multiple dosage forms.
Vitamin C (L-Ascorbic Acid, CAS 50-81-7) is a water-soluble essential vitamin and one of the most widely consumed nutritional supplements globally. As a potent antioxidant, it neutralizes free radicals, supports collagen biosynthesis, enhances non-heme iron absorption, and plays a critical role in immune system modulation. For dietary supplement brands, bulk Ascorbic Acid powder offers unmatched formulation flexibility — from tablets and capsules to effervescent formulas, functional beverages, and gummies — making it an indispensable raw material in any product portfolio.
Molecular Formula: C₆H₈O₆ | MW: 176.12 g/mol | CAS: 50-81-7 | White to off-white crystalline powder | Freely soluble in water | pH (5% solution): 2.1–2.6
Available in USP, EP, FCC, and JP pharmacopoeial grades. Produced under cGMP-certified conditions with full traceability from raw material sourcing to finished powder packaging.
Fine powder (60–80 mesh), granular (16–40 mesh), and coated/encapsulated grades available. Packed in 25 kg fiber drums or custom quantities. Minimum order quantities flexible for brand launches.
| Parameter | Specification | Test Method |
|---|---|---|
| Appearance | White to off-white crystalline powder | Visual |
| Assay (Ascorbic Acid) | 99.0% – 100.5% | USP/HPLC |
| Specific Rotation | +20.5° to +21.5° | USP |
| Heavy Metals (as Pb) | ≤ 10 ppm | ICP-MS |
| Arsenic | ≤ 1 ppm | ICP-MS |
| Loss on Drying | ≤ 0.4% | USP |
| Residue on Ignition | ≤ 0.1% | USP |
| Microbial (TPC) | ≤ 1000 CFU/g | USP <61> |
| Particle Size | Fine (60–80 mesh) / Granular (16–40 mesh) | Sieve |
| Shelf Life | 24 months (sealed, cool, dry) | Stability Study |
Understanding the commercial dynamics of the Vitamin C supplement ingredient market helps brands make informed sourcing decisions.
The global Vitamin C ingredient market was valued at over USD 1.2 billion in 2023 and is projected to reach USD 1.8 billion by 2030, growing at a CAGR of ~5.8%. The dietary supplement segment accounts for the largest share, driven by rising consumer awareness of immune health, preventive wellness, and healthy aging.
China remains the world's dominant producer of bulk Ascorbic Acid, accounting for over 80% of global supply. Leading manufacturers have invested heavily in fermentation-based biosynthesis technology (Reichstein process and two-step fermentation), improving yield efficiency and reducing environmental impact — key factors for brands seeking sustainable sourcing.
Post-pandemic consumer behavior has permanently elevated demand for immune-support supplements. Brands report Vitamin C as their #1 reformulated ingredient in 2022–2024, with strong growth in liposomal Vitamin C, time-release formulations, and high-dose effervescent tablets targeting sports nutrition and premium wellness segments.
Supplement brands are increasingly demanding non-GMO verified, allergen-free, and vegan-certified Ascorbic Acid. Demand for naturally derived Vitamin C (from Acerola, Camu Camu, or Amla extracts) is growing alongside synthetic grades, as consumers scrutinize ingredient sourcing and label claims more carefully than ever.
The line between dietary supplements and functional foods is blurring. Vitamin C powder is increasingly formulated into ready-to-mix drink powders, fortified snack bars, gummy vitamins, and beauty-from-within collagen drinks — expanding the total addressable market for ingredient suppliers and creating new OEM opportunities for supplement brands.
Regulatory frameworks in the US (FDA DSHEA), EU (EFSA), and Asia-Pacific markets continue to tighten quality and labeling requirements. Brands sourcing from GMP-certified, third-party audited suppliers gain competitive advantage through faster market access, cleaner compliance records, and stronger retailer acceptance.
Vitamin C Ascorbic Acid powder integrates seamlessly across the full spectrum of supplement dosage forms and functional categories.
The most traditional format. Ascorbic Acid powder compresses well with standard excipients. Time-release matrix tablets using HPMC or ethylcellulose coatings allow sustained plasma concentration, reducing GI discomfort at high doses (500 mg–2000 mg per tablet). Ideal for immune support, antioxidant, and daily multivitamin SKUs.
One of the fastest-growing premium segments. Encapsulating Ascorbic Acid in phospholipid liposomes dramatically enhances bioavailability compared to standard oral forms. Supplement brands targeting health-conscious consumers and biohackers are launching liposomal Vitamin C liquids and softgels at 2–5× the price point of conventional tablets.
Effervescent Vitamin C tablets (1000 mg) are a top-selling format in European and Asian markets. The dissolution in water improves palatability and absorption speed. Drink powder sachets with Vitamin C + zinc + elderberry or Vitamin C + collagen peptides are high-margin, fast-moving SKUs for DTC brands and e-commerce channels.
The gummy supplement market exceeded USD 6 billion globally in 2023. Vitamin C gummies — often combined with zinc, elderberry, or echinacea — are among the best-selling SKUs. Ascorbic Acid must be carefully buffered (as Calcium Ascorbate or Sodium Ascorbate) in gummy matrices to prevent excessive acidity and maintain gelatin or pectin structure integrity.
Vitamin C is a cofactor in collagen synthesis, making it a mandatory co-ingredient in beauty supplement formulations. Collagen + Vitamin C powders, capsules, and liquid shots are a booming category in the beauty-from-within market, with brands targeting skin elasticity, anti-aging, and UV protection claims. Ascorbic Acid also inhibits melanin synthesis, supporting skin brightening claims.
High-intensity exercise increases oxidative stress and depletes Vitamin C stores. Sports nutrition brands incorporate Ascorbic Acid into pre-workout, recovery, and electrolyte formulas. Combined with iron (for oxygen transport), magnesium, and B-vitamins, Vitamin C supports athletic performance, reduces exercise-induced muscle damage, and shortens recovery time.
Children's chewable Vitamin C tablets and senior immune-support formulas represent distinct market segments with specific formulation requirements. Chewable formats require buffered Ascorbic Acid (as Calcium Ascorbate) to protect tooth enamel. Senior formulas often combine Vitamin C with Vitamin D3, zinc, and selenium for comprehensive immune modulation.
Beyond supplements, Ascorbic Acid powder is used as a food additive (E300) and antioxidant preservative in fortified cereals, infant formula, fruit juices, and plant-based meat products. This dual-use functionality makes it a strategic raw material for brands operating across both food and supplement categories.
From raw material supply to finished product OEM/ODM — YTBIO supports your brand at every stage of development.
Nutritional supplement raw materials are mainly used in the fields of medicine, health products, etc. to supplement the amino acids, trace elements, vitamins, minerals, etc. required by the human body.
YTBIO has ten years of experience in the raw materials industry and has sufficient understanding of the industry and products. Now we support OEM/ODM services. Through continuous innovation and persistence in quality, we are committed to providing reliable health products to global customers and promoting the sustainable development of the health industry.
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The capsule categories we provide are: hard capsules, soft capsules, and pellet capsules.
About customization: ingredients, packaging, labels, etc. can all be customized. In addition, we focus on customized formulas, and a variety of existing formulas and stocks are waiting for you to choose. The production facilities and equipment meet national standards, and the production process is strictly carried out in accordance with GMP requirements.
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Technologies include boiling granulation, direct tablet compression of all powders, semi-film coating, new excipients, new processes and production linkage, etc. The production materials meet national standards, undergo comprehensive inspection and quality control, and the production process is strictly carried out in accordance with scientific production process.
About customization: ingredients, shape, packaging, labeling, etc. In addition, there are many formulas and stocks for you to choose from.
See MoreBacked by a decade of manufacturing excellence and rigorous quality systems.
Since its establishment in 2014, Shaanxi Yuantai Biological Technology Co., Ltd. has always focused on the research, development, production and sales of herbal extracts, nutritional supplements, organic products and OEM/ODM services. With high standards of product quality and a professional team as the core, the company provides customers with high-quality health product solutions. It always adheres to the concept of sustainability, balance and health to ensure that the products meet market demand and consumer expectations.
As a dedicated supplier of Vitamin C (Ascorbic Acid) powder and a full-spectrum supplement ingredient manufacturer, YTBIO serves dietary supplement brands, nutraceutical companies, contract manufacturers, and private label businesses across North America, Europe, Southeast Asia, and beyond.
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All YTBIO products are produced by ourselves, covering an area of 10,000+ square meters, with advanced extraction equipment and mature extraction technology. In addition, we have also set up separate production areas for capsules, granules, tablets, solid beverages, etc. Our Vitamin C processing line supports both fine powder and granular grades with moisture-controlled packaging.
The production facilities and equipment meet national standards, and the production process is strictly carried out in accordance with GMP requirements. And constantly update QA/QC standards to enhance the core competitiveness in quality control and R&D levels. Every batch of Vitamin C Ascorbic Acid powder is tested for assay, heavy metals, microbials, and residual solvents before release.
The certificates currently obtained include cGMP, FSSC22000, BRC, HACCP, ISO9001, ISO22000, HALAL, KOSHER, FDA, organic and other certificates — ensuring our Vitamin C powder meets the strictest international quality and safety standards required by supplement brands in regulated markets.
Provide customers with quality Vitamin C Ascorbic Acid powder and supplement raw materials.
For product information and quotes, contact us today!
99%
80 Mesh, 200 Mesh
30g, 50g
180 pcs/bag
60 PCS/Bottle
120 PCS/Bottle
120 Capsules/Bottle
60 PCS/Bottle
YTBIO covers an area of 10,000+㎡ and has passed cGMP, FSSC22000, BRC, ISO9001, ISO22000, KOSHER, HALAL, FDA, and organic certifications. The production process is strictly carried out in accordance with scientific production process to ensure the safety, stability and effectiveness of the products.
Internationally recognized quality and safety certifications — your assurance of compliant, premium-grade Vitamin C powder.
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Partner with YTBIO for reliable bulk supply, custom OEM/ODM formulations, and full regulatory support. Get a competitive quote for your dietary supplement brand today.
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