OEM/ODM
Contact Us
Tel: +86-537-6728868
E-Mail: chairman@sdrxsw.com
WhatsApp/Wetchat: +86 13562721377
Add: No.8 Wucun Industrial Park, Qufu,Shandong,China. 273100
Vitamin D3 Softgel Manufacturing
Payment Terms:
TT/LC/DP/PayPal/Western Union
Delivery Time:
3-4 weeks
MOQ:
2000 bottles
Product Description
Vitamin D3 Softgel Manufacturing
Why do some Vitamin D3 products fade in color halfway through their shelf life? It's not a labeling issue—it's a stability challenge.
Vitamin D3 (cholecalciferol) is one of the most light-sensitive nutrients in the supplement industry. As a fat-soluble vitamin, it degrades rapidly when exposed to UV light, oxygen, and heat. A formulation that looks perfect at the factory can arrive at your warehouse visibly compromised.
The solution isn't a single step—it's a system. At Runxin, we've spent 28 years building a process that protects D3活性 from the moment raw materials enter our facility to the second your product reaches consumers.
Product Specifications
Parameter | Details |
Active Ingredient | Vitamin D3 (Cholecalciferol) |
Dosage Strength | 1,000 - 50,000 IU per softgel (customizable) |
Carrier Oil Options | MCT Oil, Olive Oil, Flaxseed Oil, Custom Blend |
Shell Type | Gelatin / Vegetarian (HPMC) |
Softgel Size | #3 - #24 oval, oblong, round (20+ shapes) |
Fill Weight | 150mg - 1,500mg (tailored to formula) |
Shelf Life | 36 months (with stability data) |
Storage Requirement | Cool, dry place, away from direct light |
Certifications | GMP, ISO9001, ISO22000, FSSC22000, FDA, HALAL |
What Makes Our D3 Softgels Different
Light Protection Starts at the Source
Most manufacturers add D3 to a formula and hope for the best. We don't.
Raw Vitamin D3 material arrives at our facility under nitrogen-sealed packaging. It goes directly into light-proof storage with controlled humidity (45-55% RH) and temperature (15-20°C). D3 never sees daylight until it's sealed inside a finished softgel shell.
Nitrogen Blanketing Throughout Production
Oxidation is D3's silent killer. Even trace oxygen exposure causes cholecalciferol to convert to tachysterol—an inactive form that shows up as color fading.
Our encapsulation lines operate under positive nitrogen pressure. From the blending tank to the encapsulation machine to the cooling tunnel, oxygen is displaced at every critical junction. The result: D3 potency at 36 months matches what left the production line.
Carrier Oil Selection Matters
The right carrier oil does more than suspend D3—it stabilizes it. Different oils have different oxidation profiles:
- MCT Oil: Fast absorption, moderate stability, cost-effective
- Olive Oil: Rich in natural antioxidants, excellent for premium positioning
- Flaxseed Oil: Higher ALA content, popular for vegan formulations
We help brands select the optimal carrier based on their target price point, desired absorption profile, and market positioning. Over 28 years, our formula team has tested 200+ D3 carrier combinations.
Customization Options
Dosage: 1,000 / 2,000 / 5,000 / 10,000 / 25,000 / 50,000 IU (or custom)
Softgel Specifications:
- Size: #3 through #24 (oval, oblong, round, fish, capsule-shaped)
- Shell: Clear gelatin, opaque gelatin, or plant-based (HPMC)
- Color: Natural (amber from oil) or custom-tinted
Packaging:
- Bottles: HDPE/PET, 30/60/90/120/180 count
- Blister packs: Aluminum-aluminum or PVC/PVdC
- Bulk packaging available
Labeling & Design:
- Full private label service
- Custom bottle design
- Multi-language label support
Vitamin D3 Stability: What We Do vs. The Market
Aspect | Industry Standard | Runxin Approach |
Raw Material Storage | Standard warehouse conditions | Light-proof, nitrogen-sealed storage |
Production Environment | Ambient lighting in production area | Dedicated dark-room production line |
Oxygen Control | Post-production sealing only | Nitrogen blanketing throughout process |
Carrier Oil Selection | Fixed formulation | Formula-optimized based on D3 stability data |
Shelf Life Claim | 24 months (industry default) | 36 months with documented stability studies |
Quality Testing | Final product release test | Three-stage testing: raw material → in-process → finished goods |
Frequently Asked Questions
Q: How do you prevent Vitamin D3 from degrading during production?
A: Degradation prevention starts before production begins. D3 material is stored in nitrogen-sealed containers under controlled temperature (15-20°C) and darkness. Throughout the production process—from blending to encapsulation to drying—nitrogen blanketing displaces oxygen at every critical point. Finished softgels are sealed within hours of encapsulation, minimizing light exposure. We also optimize carrier oil selection based on the specific D3 concentration and target shelf life.
Q: What's the best carrier oil for Vitamin D3 softgels?
A: It depends on your goals:
- For maximum absorption: MCT oil provides the fastest uptake
- For premium/anti-aging positioning: Olive oil offers natural antioxidant synergy
- For vegan formulas: Flaxseed or algae oil works with plant-based shells
Our formula team has tested 200+ D3 combinations. We provide carrier recommendations based on your target price point, desired absorption profile, and label claims.
Q: Why do some D3 softgels fade in color over time?
A: Color fading indicates D3 is converting to tachysterol—an inactive oxidation product. This happens when: (1) oxygen penetrates the softgel shell over time, or (2) the carrier oil oxidizes and creates a chain reaction. Our nitrogen-blanketed production and optimized carrier oil selection prevent this. We've documented 36-month stability studies showing D3 potency retention above 95%.
Q: What's the minimum order quantity?
A: Our standard MOQ is 100,000 softgels per SKU. For custom formulations with unique specifications, the minimum may be higher. We offer sample production runs for formula validation before committing to full-scale production.
Q: What's the production timeline?
A: Formula finalization takes 2-3 weeks. Sample production and approval adds 2-3 weeks. Bulk production runs 15-20 working days from approval. For urgent projects, expedited timelines are available with additional cost.
Ready to Start?
Get a custom quote for your Vitamin D3 softgel project. Our team responds within 24 hours.
Contact Us — Share your target dosage, packaging preference, and quantity, and we'll send a detailed proposal.
Get a Free Quote
If you need more information about our products, please feel free to contact us, we will provide you with professional service personnel, we will reply promptly after receiving the information.
FAQ
Q
Can you customize product formulations based on cross-border market demands?
A
Absolutely, we can tailor product formulations to meet local consumer preferences and regulatory requirements in your target markets.
Q
Can you provide multilingual labeling and instructions for cross-border products?
A
Certainly, we offer multilingual labeling and instructions to ensure accurate communication of product information in different countries' markets.
Q
What is the MOQ for cross-border business?
A
Our cross-border business MOQ is low, typically ranging from 1000 to 5000 units of products, and can be flexibly adjusted based on specific circumstances.
Q
Can you directly ship to overseas warehouses or facilitate split shipments?
A
We support direct delivery to overseas warehouses and can arrange split shipments according to your needs. We have well-established global logistics solutions.
Q
Do you support commonly used payment methods for cross-border markets?
A
Yes, we support widely used cross-border payment settlement methods such as PayPal, credit cards, and TT bank transfers.
Q
Can you provide import customs clearance documents for major countries?
A
Yes, we can provide customs registration information, inspection reports, and other customs clearance documents for different countries.
Q
Does your product packaging design comply with regulatory requirements in major countries?
A
Our product packaging design can be adjusted to meet the regulatory standards and requirements of different countries, ensuring compliance with local norms.
Q
Can you conduct small-scale production for cross-border testing?
A
Certainly,we welcome small-scale trial orders. We have dedicated small-scale production lines available for cross-border market testing,assisting you in evaluating market potential and feedback.
Tel: +86-537-6728868
E-Mail: chairman@sdrxsw.com
WhatsApp/Wetchat: +86 13562721377
Add: No.8 Wucun Industrial Park, Qufu,Shandong,China. 273100