We are a manufacturer of zinc ascorbate powder, a unique organic zinc salt formed by stoichiometrically combining zinc ions with L-ascorbic acid.
Zinc ascorbate forms a salt with zinc ions via the carboxylation group of L-ascorbic acid, simultaneously providing two essential nutrients, zinc and vitamin C, within a single molecule. Zinc exists in an organic chelate form, offering superior bioavailability compared to inorganic zinc salts; vitamin C exists stably as the ascorbate ion. The two achieve chemical synergy within the same molecule, rather than physical mixing. Clinical studies have demonstrated that combined zinc and vitamin C supplementation has a synergistic effect in supporting immune function, maintaining the skin barrier, protecting cognitive function, and providing antioxidant defense.

Product Characteristics
Appearance: White to off-white or light beige fine free-flowing powder
Solubility: Soluble in water, insoluble in ethanol and organic solvents
Particle Size: 100% pass 40 mesh
pH (1% solution): 5.0 – 7.0
Bulk Density (tapped): ≥0.75 g/cc
COA
|
Item |
Specification |
Result |
|
Appearance |
White to off-white fine powder |
Complies |
|
Odor |
Odorless or faint characteristic |
Complies |
|
Zinc Content |
14.5% – 17.0% |
15.8% |
|
Vitamin C Content |
≥ 75.0% |
78.2% |
|
Assay |
≥ 98.0% |
99.4% |
|
Loss on Drying |
≤ 5.0% |
3.2% |
|
pH (1% solution) |
5.0 – 7.0 |
6.3 |
Benefits of Pure Zinc ascorbate powder
Supports normal immune function: Zinc plays a role in the normal activation and proliferation of immune cells, while vitamin C participates in the protection of immune cells.
Participates in the body's antioxidant defense system: As an antioxidant ingredient, it helps fight free radicals and reduce oxidative damage.
Helps maintain normal skin health: Zinc participates in collagen synthesis and skin barrier function, and vitamin C also plays a role in collagen formation.
Supports wound healing: Both zinc and vitamin C play a supporting role in tissue repair and cell regeneration.
Exhibits antibacterial activity in vitro: Studies have shown that zinc ascorbate has in vitro antibacterial activity against Staphylococcus aureus and Escherichia coli.
Supports normal protein and DNA synthesis: Zinc participates in DNA synthesis and protein metabolism during cell division.

Application Fields
Dietary Supplements
Tablets, capsules, chewables, gummies, and powdered drink mixes.
Pharmaceuticals
Used in immune-boosting medications and treatments for nutritional deficiencies.
Functional Foods
Fortified beverages, health drinks, nutrition bars, and food products requiring vitamin C and zinc enrichment.
Oral Care Products
Used in oral hygiene products, mouthwashes, and dental gels for gingival health and halitosis reduction.
Cosmetics & Personal Care
Anti-aging serums, skin brightening creams.
Animal Nutrition
Feed additives for livestock, poultry, and companion animals.
Production Process

Product Quality Advantages
High Active Content: Zinc content 14.5%–17.0% with vitamin C ≥75%, providing high nutrient density and low inclusion rates.
True Chemical Compound: A single-molecule zinc ascorbate salt, not a physical blend of zinc salt and vitamin C, ensuring uniform composition .
Consistent Monohydrate Form: Controlled crystallization ensures reproducible monohydrate stoichiometry with stable loss on drying (≤5.0%).
Neutral pH (5.0–7.0): Significantly less acidic than ascorbic acid, reducing potential gastric irritation and tooth enamel erosion .
Excellent Water Solubility: Soluble at >100 g/L at 20°C, suitable for clear liquid applications without sedimentation .
Good Flowability: Fine powder with ≥0.75 g/cc bulk density and 100% pass 40 mesh, suitable for high-speed encapsulation and tableting .


Export Certificates
We hold and can provide all necessary documentation for international markets:
Non-GMO Certificate / Statement
HACCP Certificate
ISO 22000 Food Safety Management System Certificate
FDA Facility Registration
Halal & Kosher Certificates (upon request)
Comprehensive Third-Party Laboratory Test Reports (SGS, Eurofins, etc.)

Professional ODM/OEM Services
We deliver end-to-end ODM/OEM solutions for plant extracts, transforming your concepts into market-ready products through integrated expertise and in-house production.
① Cooperation Models
OEM: Faithfully reproduce your formula with guaranteed integrity and batch-to-batch consistency.
ODM: From concept to launch, we provide complete solutions including formulation, development, and compliant manufacturing.
② Key Process
Analysis & Design: Customized solutions based on your requirements
Prototyping: Sample development using advanced extraction technologies
Production: Certified manufacturing with rigorous quality control
FAQ
Q: Why is the zinc content (15%) lower than zinc oxide (80%)?
A: Zinc ascorbate has a higher molecular weight due to the ascorbate anion. The lower zinc content per gram is normal for this mineral form. This allows for better solubility and a neutral pH profile, which are important for many applications.
Q: What is the difference between zinc ascorbate and zinc ascorbate monohydrate?
A: The monohydrate form contains one water molecule of hydration per zinc ascorbate molecule, which contributes to stability and crystalline structure. Both forms are suitable for nutritional applications; our product is the monohydrate form .
Q: Is Pure Zinc ascorbate powder suitable for clear liquid beverages?
A: A: Yes. Zinc ascorbate is water-soluble (>100 g/L) and produces clear to slightly hazy solutions, making it suitable for fortified waters, immunity shots, and clear beverages .
Q: Does this product have a metallic taste?
A: No. Zinc ascorbate has a neutral to slightly adstringent taste profile, lacking the metallic aftertaste associated with zinc gluconate, zinc sulfate, or zinc picolinate.
Q: How's shipping handled?
A: We ship globally by express, air, or sea-pick the speed that matches your plan (and your patience).
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