Custom Supplement Manufacturer for High-Growth Brands
Contract supplement manufacturing for brands that take quality seriously. 200,000 sq ft. 37 company-owned acres. Triple certified. 24-hour quote turnaround.
Get a Free 24-Hour EstimateWhy Brands Choose Rasi Labs as Their Supplement Manufacturer
Most supplement contract manufacturers will take your order. Fewer have the infrastructure, certifications, and 40-year track record to deliver it consistently. Rasi Laboratories has manufactured dietary supplements for brands across every distribution channel since 1984 — DTC, Amazon, retail, healthcare professional, and subscription. Our 200,000 sq ft facility on 37 company-owned acres in Cranbury, New Jersey is one of the largest independently owned supplement manufacturing sites in the United States.
NSF GMP certified, cGMP compliant under 21 CFR Part 111, and FDA-registered. All three certifications are independently verifiable in public databases. We encourage brands to verify directly.
Rasi does not offer private label. Every formula we produce belongs exclusively to the brand that developed it. We will never produce a competing product using your formula. Your IP is protected by design.
The entire 200,000 sq ft facility is HEPA-equipped with laminar air flow in all process suites. Each suite is independently temperature and humidity-controlled with continuous automated monitoring.
Purpose-built for temperature-sensitive ingredients including live probiotic cultures. This is not a standard supplement manufacturing capability — most facilities do not have it.
Full in-house analytical laboratory for identity, potency, purity, and stability testing. Every batch is tested before release. No third-party lab delays.
Our facility meets and exceeds cGMP standards, producing Class A air and Class 0 water throughout. Redundant infrastructure guarantees continuity of operations.
Supplement Dosage Forms We Manufacture
Rasi Labs manufactures across eight dosage form categories — all in our NSF GMP certified, FDA-registered 200,000 sq ft facility in Cranbury, New Jersey.
Gelatin and plant-based HPMC. Up to 1,000mg+ active fill. Fastest time to market.
TabletsStandard compressed, film-coated, enteric-coated, multi-layer, and chewable tablets.
PowdersFlavored and unflavored. Tubs, pouches, and stick packs. High-volume blending.
ProbioticsDrive-in refrigerated vault. HEPA-controlled blending. CFU-verified to label claim.
CollagenBovine, marine, and fish collagen. Powder and capsule formats. Type I, II, and III.
Sports NutritionPre-workout, protein, creatine, BCAAs, and recovery products.
VitaminsMultivitamins, individual vitamins, mineral complexes, and immune support formulas.
Functional FoodsNutraceuticals, pre/pro/postbiotic combinations, and specialty formulas.
Inside Our 200,000 Sq Ft Manufacturing Facility
Our Cranbury, New Jersey facility is 200,000 sq ft on 37 acres of company-owned land. Not a repurposed warehouse. Not a leased space. Built from the ground up for supplement manufacturing with pharmaceutical-grade environmental controls throughout.
- HEPA-equipped throughout the entire facility, not just designated clean rooms
- Laminar air flow in all process suites — cleanroom-level standard facility-wide
- Drive-in refrigerated vault for temperature-sensitive materials including live probiotics
- Each process suite independently temperature and humidity-controlled
- Continuous automated environmental monitoring integrated into building management
- Class A air and Class 0 water — exceeds cGMP minimum requirements throughout
- Redundant infrastructure ensures continuity of operations with no single point of failure
- In-house analytical laboratory for identity, potency, purity, and stability testing on site
Ready to Talk About Your Product?
Tell us your formula, format, and volume. A Rasi Labs manufacturing specialist responds with a detailed, itemized estimate within one business day.
Request a Free Manufacturing EstimateNSF, cGMP, and FDA-Registered — Triple Certified
All three of Rasi's certifications are verifiable in public, searchable databases. We encourage every brand evaluating a supplement manufacturer to verify these directly — not to rely on certificates on a website.
NSF International is an independent, accredited third-party certification body. NSF GMP certification requires passing audits at least twice per year — once announced, once unannounced. This frequency is significantly higher than typical FDA inspection schedules.
NSF certification is voluntary. Holding it means Rasi has chosen to subject its operations to independent scrutiny beyond the legal minimum.
Verify NSF CertificationCurrent Good Manufacturing Practices for dietary supplements are defined by FDA 21 CFR Part 111. These regulations govern production procedures, quality control, testing, batch documentation, and complaint handling.
Every batch at Rasi is produced under these standards with complete batch records maintained for every production run.
FDA facility registration is required by law for any manufacturer of dietary supplements sold in the United States. Rasi Labs maintains current FDA registration, renewed on the required two-year cycle.
Learn About FDA RegistrationProbiotic Manufacturing — Why Infrastructure Matters
Probiotics are the most technically demanding supplement category a contract manufacturer can handle. Live cultures are perishable. CFU count degrades without the right environmental controls. Most facilities are not equipped for probiotic production.
- Drive-in refrigerated vault for cold-chain storage from intake through shipment
- HEPA-filtered blending environments throughout the entire facility
- Independently humidity-controlled process suites to prevent CFU loss during encapsulation
- CFU testing on finished product to confirm potency at label claim
- Experience with pre, pro, and postbiotic combination formulas
From Quote to Bottle — Our Manufacturing Process
Every Rasi Labs project follows a structured, documented process from the first conversation through finished goods delivery.
- 24-hour quote turnaroundSubmit your project details and receive a detailed, itemized estimate within one business day.
- Custom formulation and R&DRasi's product development team works with your concept or existing formula. Pilot batches are produced on production-scale equipment.
- Raw material sourcing and verificationEvery ingredient is sourced, tested, and verified against specification before entering production.
- GMP production and in-process QCProduction runs under cGMP conditions with complete batch records, in-process weight checks, and blend uniformity sampling.
- Finished product testing and releaseEvery batch goes through identity, potency, purity, microbiological, and content uniformity testing. A COA is issued for every batch.
- Packaging, labeling, and fulfillmentRasi handles label compliance review, packaging, and fulfillment to your warehouse, fulfillment center, or DTC distribution.
Powder and Sports Nutrition Manufacturing
Sports nutrition and powder supplements require high-capacity blending, in-house flavoring R&D, and consistent execution at large batch sizes. Rasi manufactures the full range:
- Pre-workout — multi-ingredient blends with stimulants, performance ingredients, and electrolytes
- Protein powder — whey, plant-based, and collagen in flavored and unflavored formats
- Creatine — monohydrate, HCl, and anhydrous in powder, capsule, and tablet
- BCAAs — 2:1:1 and 4:1:1 ratio blends in powder and capsule
- Greens and superfoods — complex blends in tubs, pouches, and stick packs
- Collagen peptides — bovine, marine, and fish collagen in powder formats
- Electrolytes and hydration powders — single-serve and bulk formats
Custom Contract Manufacturing vs. Private Label
Rasi Labs is a custom contract manufacturer only. We do not produce private label supplements. This is a deliberate choice that protects every brand we work with.
In private label manufacturing, a manufacturer produces a stock formula under multiple brand names. Any brand can order it. Your competitor can sell the same product with a different label.
In custom contract manufacturing, the formula belongs to the brand. Rasi develops it with you, produces it exclusively for you, and never uses it for any other client. Read our full breakdown of private label vs. custom contract manufacturing.
Supplement Manufacturing for Every Sales Channel
From Amazon to retail shelves, we manufacture compliant, market-ready supplements designed for success across global e-commerce platforms and in-store distribution. Wherever you sell, we help you meet the standards and exceed expectations.
Raw Material Sourcing and Quality Control
Every supplement is only as good as the ingredients that go into it. Rasi's strict vendor qualification program ensures every raw material supplier meets our standards before a single ingredient enters our facility.
- Incoming identity testing on every raw material batch — every time, not on a sampling schedule
- Potency and purity verification for all active ingredients
- Heavy metal screening for lead, arsenic, cadmium, and mercury on critical ingredients
- Microbiological screening on botanical and biological ingredients
- Certificate of Analysis review and independent verification against spec
- Out-of-spec materials rejected before entering production — no exceptions
40 Years of Manufacturing Experience. 24-Hour Quote.
From first-time founders to established brands switching manufacturers — Rasi Labs gives every project the same attention.
Get Your Free Manufacturing EstimateFrequently Asked Questions
What is a supplement contract manufacturer?
A supplement contract manufacturer produces finished supplement products on behalf of a brand. The brand develops or owns the formula, and the manufacturer handles production, quality control, testing, labeling, and packaging. Rasi Labs is a custom contract manufacturer — every formula we produce belongs exclusively to the brand that developed it.What dosage forms does Rasi Labs manufacture?
Rasi Labs manufactures capsules, tablets, powders, probiotics, collagen supplements, sports nutrition and protein products, vitamins, and functional foods — all in our NSF GMP certified, FDA-registered facility in Cranbury, New Jersey.What certifications does Rasi Labs hold?
Rasi Labs holds NSF GMP certification, operates under cGMP as defined by FDA 21 CFR Part 111, and is registered with the FDA as a dietary supplement manufacturer. All three are independently verifiable in public databases.Does Rasi Labs offer private label supplement manufacturing?
No. Rasi Labs is a custom contract manufacturer only. We do not produce private label products. Every formula developed with Rasi belongs exclusively to the brand that commissioned it. We will never produce a competing product using your formula.How long does supplement manufacturing take?
A typical custom supplement manufacturing project takes 10 to 16 weeks from formula approval to finished goods, depending on formula complexity, packaging format, and order volume. Flavored powder products may require additional time for flavor development.What is the difference between contract manufacturing and private label?
In contract manufacturing, the brand owns its formula and the manufacturer produces it exclusively for that client. No other brand can source the same product. In private label, multiple brands can sell the same formula under different names. Rasi Labs is contract-only. Your formula is yours.How much does supplement manufacturing cost?
Costs vary based on formula complexity, ingredient costs, dosage form, packaging format, and order volume. Rasi Labs provides detailed, itemized quotes within one business day of receiving your project details.Where is Rasi Labs located?
Rasi Labs is located at 320 Half Acre Road, Cranbury, New Jersey 08512, on 37 company-owned acres. The 200,000 sq ft facility sits along a major distribution corridor with direct access to Newark Airport and the Port of New York and New Jersey.Does Rasi Labs have a minimum order quantity?
Minimum order quantities vary by dosage form and formula. We work with brands at a range of production volumes and provide MOQ guidance as part of every project quote.How do I get a supplement manufacturing quote from Rasi Labs?
Submit your project details using the link below. A manufacturing specialist will respond within one business day — every project, without exception.Ready to Build Your Supplement Line?
Rasi Laboratories has manufactured NSF-certified, GMP-compliant supplements for brands of every size since 1984. Family-owned. 200,000 sq ft on 37 owned acres in Cranbury, New Jersey.
Request Your Free Manufacturing Estimate