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
Product Description
At Shandong Runxin Biotechnology, we've spent 28 years perfecting collagen supplement manufacturing. We've seen too many brands struggle with ineffective collagen products because they ignore this fundamental biological truth: exogenous collagen needs vitamin C to help your body synthesize new collagen.
With 6000+ formulas developed and 2 billion tablets produced annually, we don't just manufacture collagen tablets—we create collagen solutions that actually work.
Our Technical Advantage: The Synergistic Formulation That Works
1. Precision Molecular Weight Control: 2000-3000Da
We control our collagen hydrolysis to deliver a precise 2000-3000Da molecular weight range. Multiple peer-reviewed studies have demonstrated this specific range as the optimal window for oral collagen absorption. Unlike competitors who offer broad 1000-10000Da ranges, our enzymatic hydrolysis process ensures consistent, bioavailable collagen in every batch.
2. Vitamin C as Coenzyme, Not Just Antioxidant
Every Collagen + C tablet contains 50-100mg of vitamin C, precisely calibrated to serve as the essential coenzyme for prolyl hydroxylase. This enzyme catalyzes the hydroxylation of proline residues, which is critical for stabilizing the collagen triple helix structure. This isn't just "adding vitamin C"—it's activating the biological pathway that builds new collagen in your body.
3. Endogenous Synthesis Promotion
We don't just give your body exogenous collagen—we help it make more of its own. The vitamin C in our formulation doesn't just aid absorption—it actively supports your body's natural collagen production mechanisms. This dual-action approach delivers results that pure collagen supplements simply cannot match.
4. Multiple Collagen Source Options
We offer three distinct collagen sources, each with unique amino acid profiles:
- Bovine bone collagen (Type I + III): Ideal for general skin, hair, and nail health
- Fish skin collagen (Type I): Superior bioavailability for targeted skin support
- Chicken sternum cartilage collagen (Type II): Perfect for joint health formulations
5. Hydroxyproline Verification
We test every batch for hydroxyproline content—the characteristic amino acid that proves genuine collagen content. While many manufacturers skip this crucial verification, we provide full transparency on collagen authenticity and concentration.
Comparison: Runxin Collagen + C vs. Ordinary Collagen Tablets
Parameter | Ordinary Collagen Tablets | Runxin Collagen + C Tablet |
Molecular Weight | Broad range (1000-10000Da) | Precisely controlled 2000-3000Da (optimal absorption) |
Vitamin C Role | Simple addition, "antioxidant" claims only | Explicitly as prolyl hydroxylase coenzyme, supports endogenous synthesis |
Collagen Source | Single source (often unspecified) | Bovine/fish/chicken options with clear Type I/II/III designation |
Testing Protocol | Basic content testing only | Full panel: content + molecular weight distribution + hydroxyproline verification |
Formulation Logic | "Higher content = better" | "Synergistic absorption + endogenous synthesis = real results" |
Clinical Basis | No specific research citations | Backed by collagen absorption research and vitamin C coenzyme mechanism studies |
Formulation Flexibility | Fixed formulas only | Fully customizable: source selection, additional ingredients (HA, biotin, MSM) |
Custom Formulation Recommendations
Skin Beauty Formula
Base: Fish collagen (Type I) + Vitamin C
Enhancements: Hyaluronic acid + biotin + vitamin E
Benefit: Supports skin hydration, elasticity, and overall skin health
Joint Health Formula
Base: Chicken cartilage collagen (Type II) + Vitamin C
Enhancements: MSM + chondroitin sulfate + turmeric extract
Benefit: Supports joint comfort and mobility
Hair & Nail Formula
Base: Bovine collagen (Type I + III) + Vitamin C
Enhancements: Biotin + zinc + selenium + horsetail extract
Benefit: Supports healthy hair and nail growth
Sports Recovery Formula
Base: Bovine collagen (Type I) + Vitamin C
Enhancements: Branched-chain amino acids (BCAAs) + magnesium + ginger extract
Benefit: Supports muscle recovery and connective tissue health
Product Specifications
Specification | Details |
Tablet Weight | 500mg, 1000mg, 1500mg (customizable) |
Collagen Content | 300-1200mg per tablet |
Vitamin C Content | 50-100mg per tablet (customizable) |
Collagen Sources | Bovine, Fish, Chicken (or blend) |
Collagen Types | Type I, Type II, Type I+III |
Molecular Weight | 2000-3000Da (controlled) |
Shape | Round, Oval, Custom shapes available |
Coating | Uncoated, Film-coated, Enteric-coated |
Colors | Natural colors only (no artificial dyes) |
Flavors | Unflavored, Orange, Berry, Lemon (customizable) |
Packaging | Bottles, Blister packs, Sachets, Bulk |
Shelf Life | 36 months |
Your Customization Options
With 29 years of OEM/ODM experience and 6000+ formulas in our database, we offer comprehensive customization:
Collagen Source Selection
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- Choose bovine, fish, chicken, or create your own blend
- Specify collagen type (I, II, or I+III combination)
Dosage Adjustments
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- Customize collagen content per tablet
- Adjust vitamin C levels for your target audience
Additional Ingredients
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- Add hyaluronic acid, biotin, MSM, chondroitin sulfate
- Incorporate herbal extracts, vitamins, and minerals
- All ingredients pre-vetted for safety and compliance
Tablet Characteristics
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- Select tablet weight, shape, and coating type
- Choose from natural color and flavor options
Branding & Packaging
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- Private label services with your brand design
- Multiple packaging formats for different market channels
Frequently Asked Questions
Q: Why is 2000-3000Da the optimal molecular weight for collagen absorption?
A: Research published in the Journal of Agricultural and Food Chemistry and other peer-reviewed publications demonstrates that the 2000-3000Da range achieves the highest oral bioavailability. Peptides in this range are efficiently absorbed through intestinal barriers and reach target tissues without being fully broken down during digestion. Larger peptides (>5000Da) have poor absorption, while extremely small peptides (<1000Da) may not maintain the structural characteristics that support collagen synthesis.
Q: What does vitamin C actually do in collagen synthesis?
A: Vitamin C serves as an essential cofactor for the enzymes prolyl hydroxylase and lysyl hydroxylase. These enzymes catalyze the hydroxylation of proline and lysine residues in procollagen chains, which is absolutely necessary for the formation and stabilization of the collagen triple helix structure. Without sufficient vitamin C, this hydroxylation cannot occur properly, and newly synthesized collagen cannot form strong, functional fibers.
Q: What's the difference between bovine, fish, and chicken collagen?
A: Each source has distinct characteristics:
- Bovine collagen: Typically contains Type I and III collagen, sourced from bone or hide, excellent for general skin, hair, nail, and connective tissue support
- Fish collagen: Primarily Type I collagen from skin, demonstrates superior bioavailability due to smaller particle size, ideal for skin-focused products
- Chicken collagen: Rich in Type II collagen from sternum cartilage, specifically formulated to support joint health and comfort
Q: Do you test for hydroxyproline to verify collagen authenticity?
A: Yes. Hydroxyproline is the characteristic amino acid unique to collagen (and elastin in very small amounts). We test every batch using validated HPLC methods to measure hydroxyproline content, which allows us to accurately calculate actual collagen concentration. This verification ensures you're receiving genuine collagen, not just hydrolyzed protein fillers.
Q: Can I add hyaluronic acid or biotin to my collagen formula?
A: Absolutely. We regularly create enhanced collagen formulations with:
- Hyaluronic acid for added skin hydration support
- Biotin for hair and nail health
- MSM and chondroitin for joint formulas
- Additional vitamins and herbal extracts
- Our R&D team will work with you to create a custom formula that meets your target market needs while maintaining regulatory compliance.
Ready to Create Collagen Tablets That Actually Deliver Results?
Stop selling collagen supplements that leave customers disappointed. With our scientifically-backed Collagen + C formulation, you're offering more than just collagen—you're offering a complete collagen synthesis solution.
✅ 29 years of specialized supplement manufacturing
✅ 6000+ successful formulas developed
✅ 2 billion tablets annual production capacity
✅ cGMP certified manufacturing facility
✅ Full regulatory support for global markets
Let's discuss your collagen tablet project today. Our formulation specialists are ready to help you create a premium collagen product that stands out in the crowded market.
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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.