Immune Support Capsules with Vitamin C Manufacturer

Last updated: May 2026

Product Name	Immune Support Capsules OEM Manufacturer
Appearance	capsules
GMP certified factory	Xi'an ECO Biotech Factory Co., Ltd. Xi'an Henrikang Biotech Co., Ltd.
Brand	Reson and Ausreson
Specification	500mg/Cap,1000mg/Cap or as your request
Certification	ISO, Halal, HACCP
Keywords	Immune Support Capsules, immune support vitamin c Immune Support Capsules Manufacturer
Storage	Keep in a cool, dry, dark location in a tightly sealed container or cylinder.
Shelf Life	24 Months

Why the Capsule Dosage Form Dominates

While gummies and effervescent tablets have seen growth, hard gelatin or vegetable capsules remain the gold standard for premium immune formulations in the Western market.

• Maximum Ingredient Stability: Botanical extracts like Elderberry, Echinacea, and medicinal mushroom powders (Reishi, Chaga) are highly sensitive to moisture and heat. The capsule shell provides an airtight barrier that protects delicate bio-active compounds.

• Clean Label Compatibility: Premium brands prefer veggie capsules (HPMC) to cater to the massive and lucrative vegan, vegetarian, and non-GMO demographics in the US and EU.

• Zero Sugar & No Fillers: Unlike gummies, capsules allow for high-potency dosing without added sugars, artificial flavors, or excess binders—a major selling point for health-conscious consumers.

Key Ingredients in Premium Formulations

A market-ready immune product must go beyond simple Vitamin C. High-converting brands rely on a synergistic matrix of vitamins, minerals, and standardized botanical extracts.

To guarantee premium efficacy, our manufacturing pipelines leverage the proprietary Ausreson™ Premium Botanical Standardization Process, ensuring that every batch delivers exact, predictable levels of active compounds.

The Core Immune Triad

• Vitamin C & Zinc: The fundamental pillars for cellular defense. Zinc supports T-cell development, while Vitamin C acts as a potent antioxidant within the respiratory tract.

• Vitamin D3 (Cholecalciferol): Crucial for modulating both innate and adaptive immune responses. European markets, in particular, see high demand for year-round Vitamin D3 supplementation.

• Elderberry (Sambucus Nigra) Extract: Standardized to high anthocyanin levels, this botanical is a favorite in the Western market for its clinically studied seasonal defense properties.

OEM Service
We offer OEM services, please contact us for more information>>
Product Type	Capsules,Softgels,Tablets,Gummies,Liquid Drops,Gum,solid beverage and other customized products
Packaging	Bottles, Bags, Bulk, Blister packs, Custom
Formulas	Standard formulas or custom formulas
Flavor	OEM Sugar Free Natural Orange, Lemon, Apple, Grape,Strawberry,Watermelon,Fruit or any other Flavors you want
OEM service	Support OEM&ODM Custom service,Different Formula，Flavors, Shapes，Bottle ，Color

How Key Nutrients Support Immune Health

1. Vitamin C

Vitamin C contributes to the normal function of the immune system and helps protect cells from oxidative stress.

2. Vitamin D3

Vitamin D3 plays a role in the normal function of the immune system. Adequate levels are especially important during months with limited sunlight.

3. Zinc

Zinc contributes to normal immune system function and helps protect cells from oxidative stress.

4. Elderberry & Probiotics

Elderberry has been traditionally used to support immune health. Probiotics support a healthy gut environment, where a significant portion of immune cells reside.

Why Partner with Reson for Your Private Label Immune Capsules?

As an established leader in cross-border B2B supplement manufacturing, Reson provides end-to-end OEM/ODM solutions tailored for fast-growing brands in Europe and North America.

Our proprietary Ausreson™ encapsulation technology ensures rapid dissolution profiles while protecting sensitive active ingredients from gastric acid degradation. This significantly enhances the bio-availability of the nutrients, meaning the end-consumer gets the maximum biological benefit from every capsule.

We understand that supply chain agility is key to modern e-commerce and retail success. We offer scalable Minimum Order Quantities (MOQs) for custom formulations, allowing you to test innovative ingredient blends without heavy upfront capital risk.

Frequently Asked Questions

Q1: What ingredients are in this immune support formula?

• A: Each serving contains: Vitamin C (250mg), Vitamin D3 (1000 IU), Zinc (15mg), Elderberry extract (100mg), Probiotics (1 billion CFU) . Full ingredient list available upon request.

Q2: Is this product vegan?

• A: Yes. Our capsules use HPMC (vegetable cellulose) shells. No animal-derived ingredients are used.

Q3: Does this product contain turmeric or ginger?

• A: No. This is a focused immune support formula with Vitamin C, D3, Zinc, Elderberry, and Probiotics. We offer separate turmeric/ginger products. Please contact us for details.

Q4: Why does your keyword say “vitamin b12”?

• A: That was an error in our database. This product does NOT contain vitamin B12. We have corrected this. Apologies for any confusion.

Q5: Can this product prevent colds and flu?

• A: No. These supplements support normal immune function but cannot guarantee disease prevention. They are most effective as part of a healthy lifestyle.

Immune Support Capsule Manufacturing Specifications:

Vitamin C per capsule: 250 mg — Customizable (100–500 mg)

Vitamin D3 per capsule: 1,000 IU — Customizable (400–5,000 IU)

Zinc per capsule: 15 mg — Customizable (10–25 mg)

Elderberry extract per capsule: 100 mg — Customizable

Probiotics per capsule: 1 billion CFU — Customizable

Content uniformity: Tested per batch (RSD ≤ 5%)

Heavy metal testing: Lead, arsenic, mercury, and cadmium tested per batch; compliant with USP/EP standards

Capsule type: Gelatin (standard), HPMC vegetarian (optional)

Minimum Order Quantity (MOQ): 10,000 capsules (standard); 50,000 capsules (customized)

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Need bulk purchasing or OEM customization? [Click here for a quote]

OWN Brand

Intergroup is supplying OEM service for the Well-known brands Reson and Ausreson. Alibaba International Station No.1 supplier, Alibaba International Station Number 1, Alibaba International Station Number one Customized logo is welcome, Packing as your requirement. offering private label

Cusrom Process

01 Contact us 02 Confirm Product Formula 03 Sample Confirmation 04 Deposit Payment 05 Factory Production 06 Product Quallty Inspectlon 07 Balance Payment 08 Dispatch and Delvery

Factory & Exhibition

Private Label design, fast delivery, USA Warehouse, European Warehouse, capsules factory,Softgels factory,tablets factory, pills factory, Gummies factory, Liquid Drops factory,Gum factory,solid beverage factory, customized factory, capsules manufacturer, Softgels manufacturer, tablets manufacturer, pills manufacturer, Gummies manufacturer, Liquid Drops manufacturer,Gum manufacturer,solid beverage manufacturer.

In order to better serve our global customers, we will participate in various large-scale exhibitions.Europe, North America

Certifications

We are a nutritional supplement raw material and nutritional supplement brand OEM manufacturing factory in China with ISO 22000, ISO 9001, HACCP Management certifications, GMP certificate the factory, HALAL, CE, CE-ROHS, Organic, KOSHER, NSF Product certifications.Our product's comprehensive certification standards.

Packaging

We promise to provide high-quality products, but please raise any quality issues within 15 days of receiving the package.

From concept to finished product, we are committed to quality, efficiency, and customer satisfaction. Let us help you bring your product to life!

FAQs

Q: What kind of OEM forms can you supply ?
A: Pre mix powder, Capsules, Tablets, pills, Softgel,drops, Gummy.

Q: What's the pill size?
A: Capsule: 2#,1#,0#, 00#. Tablet: Can customize like 500mg, 1000mg, 1500mg, 2000mg

Q: What are capsule shells made of ?
A: Gelatin,HPMC (Vegan), Enteric gelatin & enteric vegan shells.

Q: Can the formula be customized by our Own Formula?
A: Yes, The formula can be exact customized.

Q: Minimum Order Quantity (MOQ) ?
A: Small quantity sample can be customized according to your requirements. Official order MOQ: 100,000 pieces

Q: Can you supply bottles with private label?
A: Yes, all can be customized.

Q: What kind of certificates can you supply for your OEM capsules / Tablets?
A: Health certificate, Original certificate.