Why Dissolution Testing Matters for Supplement Brands
At SREKE, we understand that dissolution testing is one of the most critical quality control steps in tablet and capsule manufacturing. This test measures how quickly and completely an active ingredient is released from its dosage form into solution — a direct predictor of bioavailability and product efficacy.
According to USP General Chapter <711> Dissolution, the test evaluates drug product performance under controlled conditions using standardized apparatus. The FDA requires dissolution testing as part of cGMP compliance (21 CFR Part 211.84 and 21 CFR Part 211.165) for all solid oral dosage forms, and EFSA guidelines similarly emphasize dissolution data as part of quality dossiers for dietary supplement products marketed in the European Union.
For supplement brand owners, dissolution performance directly impacts:
- Ingredient bioavailability and consumer results
- Regulatory compliance and product approval timelines
- Batch-to-batch consistency and quality assurance
- Competitive differentiation in a crowded market
Without proper dissolution testing, even a well-formulated product may underperform — leading to negative reviews, returns, and compliance risks.
Key Manufacturing Considerations at SREKE
Our GMP-certified manufacturing facility in Guangzhou integrates dissolution testing into every stage of tablet and capsule production. Here is what brand owners should know about our approach:
Dissolution Apparatus and Methods
We utilize USP-compliant dissolution testing equipment including Apparatus 1 (basket) and Apparatus 2 (paddle), as specified in USP <711>. Our laboratory also performs flow-through cell testing (Apparatus 4) for challenging formulations that require extended release or have poor solubility profiles.
Factors Affecting Dissolution Performance
At SREKE, we optimize formulation and manufacturing parameters to ensure consistent dissolution. Key factors we control include:
- Granulation method: Wet granulation, dry granulation, or direct compression affect particle size distribution and porosity
- Binder and disintegrant selection: Proper excipient ratios accelerate tablet breakup and ingredient release
- Compression force: Tablet hardness must be balanced — excessive pressure can retard dissolution
- Coating formulation: Film coatings and enteric coatings require specific dissolution profiles verified through USP testing
- Capsule shell quality: We source pharmaceutical-grade gelatin and HPMC capsules that dissolve within established timeframes
Quality Standards and Compliance
Our dissolution testing protocols align with the following standards:
- USP <711> Dissolution — the internationally recognized standard for oral solid dosage forms
- FDA cGMP regulations (21 CFR Part 211) — requiring verification that each batch meets dissolution specifications
- ISO 9001:2015 — our quality management system ensures documented, repeatable testing procedures
- HACCP principles — applied to identify and control critical points in the manufacturing process
- EFSA requirements — for supplement brands targeting European markets with dissolution data in technical files
Testing Frequency and Batch Release
We perform dissolution testing on every production batch as part of our release criteria. Stability-indicating methods are validated according to ICH Q2(R1) guidelines, ensuring that our tests can detect changes in product quality over time. Accelerated and long-term stability studies are conducted at our facility to establish shelf life and storage conditions.
How SREKE Helps You Get to Market Faster
At SREKE, we streamline the path from formulation to finished product so your brand can launch with confidence.
Formulation Development Support
Our in-house R&D team works with you to develop formulations that meet both performance and dissolution targets. We assist with:
- Ingredient sourcing and qualification from verified suppliers
- Pre-formulation studies to assess solubility and compatibility
- Prototype development and iterative optimization
- Dissolution method development and validation
MOQ and Lead Time
We understand that supplement brands have varying production needs. Our flexible MOQ options and efficient production scheduling help you manage inventory while maintaining quality. Typical lead times for tablet and capsule orders range from 4 to 8 weeks depending on formulation complexity, packaging requirements, and regulatory documentation needs. Contact our team for specific timelines relevant to your project.
Packaging and Labeling Compliance
Our facility offers a full range of packaging solutions including blister packs, bottles, and strip packaging. We ensure that all packaging materials meet FDA and EU regulatory requirements for contact with dietary supplements. Our compliance team reviews labeling to support your market entry strategy.
Regulatory Documentation
We provide comprehensive documentation including:
- Certificate of Analysis (CoA) with dissolution results for each batch
- Manufacturing and quality records compliant with cGMP
- Technical dossiers supporting regulatory submissions
- Allergen and contamination testing reports
Industry Trends and Market Opportunities
The dietary supplement market continues to evolve, and dissolution performance is increasingly recognized as a key differentiator.
Growing Consumer Demand for Bioavailability
Consumers are more informed than ever about supplement quality. Brands that can demonstrate superior dissolution and bioavailability through third-party testing and transparent labeling are gaining market share. At SREKE, we help brands build formulations that deliver measurable results.
Regulatory Scrutiny Increasing
Both the FDA and EFSA have intensified oversight of dietary supplement manufacturing. Dissolution testing is no longer optional — it is a fundamental requirement for market access. Brands that partner with GMP-certified manufacturers like SREKE are better positioned to comply with evolving regulations.
Advanced Delivery Systems
Innovation in dissolution technology is driving new product categories. We support development of:
- Fast-dissolving tablets and orally disintegrating capsules
- Extended-release formulations for sustained ingredient delivery
- Enteric-coated capsules for acid-sensitive ingredients
- Softgel and hard capsule formats with optimized release profiles
Global Market Expansion
Supplement brands are expanding into international markets with increasing frequency. Our experience with both FDA and EU regulatory frameworks, combined with our GMP, ISO, and HACCP certifications, positions us to support brands targeting multiple regions.
Frequently Asked Questions
What is dissolution testing and why is it required?
Dissolution testing measures the rate and extent to which an active ingredient is released from a tablet or capsule into a liquid medium. It is required by FDA cGMP regulations (21 CFR Part 211) and is a standard quality attribute evaluated under USP <711>. EFSA also expects dissolution data as part of product quality documentation for supplements sold in the European Union.
How does dissolution testing affect product efficacy?
Dissolution is a key determinant of bioavailability. If an ingredient does not dissolve properly, it cannot be absorbed by the body, regardless of the label claim. At SREKE, we ensure that our formulations achieve dissolution profiles that support consistent ingredient delivery.
What dissolution apparatus does SREKE use?
We use USP-compliant Apparatus 1 (basket) and Apparatus 2 (paddle) for standard dissolution testing. For specialized formulations, we also employ Apparatus 4 (flow-through cell). All equipment is calibrated and maintained according to manufacturer specifications and regulatory requirements.
Can SREKE help with custom dissolution specifications?
Yes. Our R&D team works with you to establish dissolution criteria that align with your product goals and target market requirements. We can develop and validate custom dissolution methods tailored to your formulation.
What is the typical MOQ for tablet and capsule production?
MOQ varies by product type, packaging, and formulation complexity. Contact our team for specific MOQ information relevant to your project. We offer flexible production runs to accommodate brands of all sizes.
How long does the manufacturing process take?
Typical lead times for tablet and capsule orders range from 4 to 8 weeks, depending on formulation development, testing, packaging, and regulatory documentation. Rush production may be available for qualifying projects.
Does SREKE provide dissolution testing reports for regulatory submission?
Yes. We provide batch-specific Certificate of Analysis documents including dissolution results. Our technical team can also prepare comprehensive quality dossiers supporting regulatory submissions in the US and EU markets.
What certifications does SREKE hold?
SREKE is a GMP-certified contract manufacturer. Our facility operates under ISO 9001:2015 quality management standards and HACCP principles. We support brands targeting both FDA-regulated and EU-compliant markets.
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.