Why Dissolution Testing Matters for Supplement Brands
Dissolution testing evaluates how quickly a tablet or capsule releases its active ingredients in simulated gastrointestinal conditions. For supplement brands, this parameter directly affects bioavailability, product performance, and regulatory compliance. At SREKE, we conduct dissolution testing as part of our quality control protocol to ensure every batch meets pharmacopeial standards before release.
FDA guidelines and USP <711> recommend dissolution testing for solid oral dosage forms when variability in absorption could impact efficacy. While dietary supplements are not approved for disease treatment, consistent dissolution profiles help maintain label claim consistency across batches. This is especially important for products containing time-release, delayed-release, or enteric-coated formulations.
Key Manufacturing Considerations at SREKE
Formulation & Excipient Selection
We work with brand owners to select excipients that support optimal dissolution without compromising stability. Common additives include microcrystalline cellulose (filler), croscarmellose sodium (disintegrant), and magnesium stearate (lubricant). Our R&D team ensures these materials comply with GMP, ISO 9001:2015, and HACCP requirements.
Tablet Compression & Capsule Filling
Our high-speed rotary presses and automated capsule fillers are calibrated to maintain uniform weight and hardness—critical factors influencing dissolution rates. We monitor tablet hardness using automated testers and adjust compression forces accordingly. For capsules, we verify fill weight variation within ±5% per USP <905>.
Dissolution Apparatus & Methods
At SREKE, we utilize USP Apparatus I (basket) and II (paddle) methods under controlled temperature (37°C ± 0.5°C) and agitation speeds (50–100 rpm). Test media include water, pH 1.2 HCl, phosphate buffer (pH 6.8), and simulated gastric/intestinal fluids depending on the intended release profile. All instruments are calibrated annually per ISO/IEC 17025 standards.
Batch Release Criteria
Each production batch undergoes dissolution testing prior to packaging. Acceptance criteria typically require ≥80% of labeled potency dissolved within 30 minutes for immediate-release products. Modified-release formulations follow extended timelines defined during development. Results are documented in Certificates of Analysis (CoA) provided upon request.
How SREKE Helps You Get to Market Faster
- MOQ Flexibility: Start with low minimum order quantities (MOQs) as low as 5,000 units for tablets/capsules, allowing risk-free market validation.
- Lead Time Efficiency: Average production lead time is 14–21 days from formulation approval, including QC and packaging.
- Regulatory Support: Our team assists with FDA Facility Registration, DSHEA compliance documentation, and EU Novel Food notification if applicable.
- Packaging Options: Choose from blister packs, bottles, sachets, or custom branded containers with tamper-evident seals.
Industry Trends and Market Opportunities
Consumers increasingly demand rapid-onset and sustained-release formats. According to Grand View Research, the global nutraceuticals market reached USD 455 billion in 2023, with growing interest in precision delivery systems like fast-dissolving tablets and timed-release capsules. At SREKE, we support innovation through our ODM service—developing proprietary formulas optimized for both performance and manufacturability.
Additionally, clean-label trends drive demand for plant-based disintegrants and allergen-free excipients. Our facility maintains separate production lines to prevent cross-contamination, ensuring suitability for vegan, gluten-free, and non-GMO projects.
Frequently Asked Questions
Is dissolution testing required for all dietary supplements?
No, it’s not mandatory for all products. However, we recommend it for new formulations, modified-release designs, or when transitioning between manufacturers to ensure consistency. It also strengthens your quality assurance system during audits.
Can you test existing products from other suppliers?
Yes, we offer third-party analysis services. Submit samples to our lab, and we’ll generate a full dissolution report alongside identity, purity, and heavy metal screening—all compliant with USP/NF or EP monographs where available.
What if my formula fails dissolution testing?
We provide reformulation support. Our scientists can adjust binder levels, modify granulation techniques, or switch coating materials to improve dissolution while maintaining cost-efficiency and scalability.
Do you provide digital access to batch test results?
Absolutely. Clients receive secure online access to CoAs, dissolution curves, and process records via our client portal after each shipment. This transparency builds trust and simplifies your own compliance reporting.
Ready to launch your supplement brand? SREKE provides GMP-certified OEM/ODM manufacturing for softgels, capsules, tablets, powders, gummies, and liquids. Contact us for a free quote or email [email protected] — we respond within 24 hours.