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Inventory Ready

Find your supplement industry partners.

Independent assessments of manufacturers, ingredient suppliers, testing labs, packagers, and more. Published method. Transparent limitations. No hidden affiliations.

Tell Us About Your ProjectNew to supplements? Start here

186+ vendors assessed against six published gates across 8 supply chain categories. Every profile documents what we could not confirm. See how we assess →

Browse by Category

Explore the full supplement supply chain, from raw ingredients to finished product fulfillment.

Contract Manufacturing

Full-service manufacturers offering private label and custom formulation for dietary supplements. Includes co-manufacturing, white label, and turnkey production.

48 vendors

Ingredient Suppliers

Raw material and ingredient suppliers for dietary supplements. Branded and commodity ingredients, GRAS-listed materials, patented compounds, and bulk powders with certificates of analysis.

45 vendors

Testing & Stability Labs

Independent analytical laboratories that verify supplement identity, potency, purity, and safety. Accredited testing for regulatory compliance, quality assurance, and stability studies including accelerated and real-time shelf-life protocols.

13 vendors

Fulfillment & 3PL

Third-party logistics providers specializing in supplement warehousing, order fulfillment, and distribution. Temperature-controlled storage and lot-tracked inventory management.

10 vendors

Formulation & R&D

Formulation scientists and R&D houses that design supplement products from concept to production-ready formula. Includes stability studies, bioavailability optimization, and regulatory review.

10 vendors

Packaging & Labeling

Packaging suppliers and labeling companies for dietary supplements. Includes bottles, pouches, child-resistant closures, and FDA-compliant label design and printing.

42 vendors

Regulatory & Compliance

Regulatory consultants, claims review specialists, and certification support providers for dietary supplements. FDA and FTC compliance, structure-function claims, GMP auditing, organic certification, and third-party quality seals.

9 vendors

Flavor Development

Flavor houses and sensory specialists that develop and optimize taste profiles for supplements. Masking bitter actives, natural flavoring systems, and consumer taste testing.

9 vendors

Featured Partners

Independently assessed supply chain partners for dietary supplements.

Editorially listed · Reviewed Mar 12, 2026

CONTRACT MANUFACTURING

IRASSESSED

Makers Nutrition

Commack, New York

“Makers Nutrition operates a 177,000 sq ft FDA-registered facility in Commack, New York. They focus on startups and emerging brands with…”

SIX-GATE READOUT

3/6 cleared

MOQ

500 bottles (private label), 1,500 bottles (custom)

LEAD TIME

4-6 weeks

NSF Certified
Independent listing · no commercial relationshipRead the file →
Editorially listed · Reviewed Mar 12, 2026

CONTRACT MANUFACTURING

Lief Labs

Valencia, CaliforniaDirectory Listing

“Lief Labs operates over 220,000 sq ft of manufacturing space across two FDA-registered facilities in Valencia, California. The company…”

SIX-GATE READOUT

3/6 cleared

MOQ

2,500 units

LEAD TIME

8-10 weeks (capsules and powders; varies by ingredient sourcing)

Independent listing · no commercial relationshipRead the file →
Editorially listed · Reviewed Mar 12, 2026

CONTRACT MANUFACTURING

Vitaquest International

West Caldwell, New JerseyDirectory Listing

“Vitaquest International has manufactured dietary supplements for over 40 years from its three facilities in West Caldwell, New Jersey. The…”

SIX-GATE READOUT

3/6 cleared

MOQ

4,100+ bottles (varies by format)

LEAD TIME

12-16 weeks

NSF Certified
Independent listing · no commercial relationshipRead the file →
Editorially listed · Reviewed Mar 12, 2026

CONTRACT MANUFACTURING

IRASSESSED

Robinson Pharma

Santa Ana, California

“Robinson Pharma operates over 1 million sq ft of manufacturing space across eight to nine facilities in Santa Ana and Costa Mesa,…”

SIX-GATE READOUT

3/6 cleared

MOQ

Not publicly disclosed

LEAD TIME

Not publicly disclosed

SQF CertifiedUSDA Organic
Independent listing · no commercial relationshipRead the file →
Editorially listed · Reviewed Mar 12, 2026

CONTRACT MANUFACTURING

SMP Nutra

Largo, FloridaDirectory Listing

“Supplement Manufacturing Partners (SMP Nutra) operates a 155,000 sq ft facility in Largo, Florida. The company holds NSF 455-2…”

SIX-GATE READOUT

3/6 cleared

MOQ

1,000 bottles (stock), 1,500-2,000 bottles (custom)

LEAD TIME

6-8 weeks (stock products)

NSF 455-2 Certified
Independent listing · no commercial relationshipRead the file →
Editorially listed · Reviewed Mar 12, 2026

CONTRACT MANUFACTURING

IRASSESSED

Captek Softgel International

Cerritos, California

“Captek Softgel International (CSI) specializes in softgel and gummy manufacturing from facilities in Cerritos, Vista, and La Mirada,…”

SIX-GATE READOUT

3/6 cleared

MOQ

Not publicly disclosed

LEAD TIME

Not publicly disclosed

NSF GMP CertifiedSQF Certified
Independent listing · no commercial relationshipRead the file →
Editorially listed · Reviewed Apr 4, 2026

TESTING LABS

Eurofins Scientific

Des Moines, IowaDirectory Listing

“Eurofins Scientific operates a global network of over 900 laboratories across 62 countries. Their US supplement testing is anchored by the…”

SIX-GATE READOUT

3/6 cleared

MOQ

Not publicly disclosed

LEAD TIME

5-10 business days (standard), varies for stability

ISO/IEC 17025 (A2LA)
Independent listing · no commercial relationshipRead the file →
Editorially listed · Reviewed Apr 6, 2026

TESTING LABS

NSF International

Ann Arbor, MichiganDirectory Listing

“NSF International is an independent, not-for-profit organization founded in 1944 in Ann Arbor, Michigan. Their dietary supplement testing…”

SIX-GATE READOUT

3/6 cleared

MOQ

Not publicly disclosed

LEAD TIME

Not publicly disclosed

Independent listing · no commercial relationshipRead the file →
Editorially listed · Reviewed Apr 4, 2026

FULFILLMENT 3PL

ShipBob

Chicago, IllinoisDirectory Listing

“ShipBob is one of the largest ecommerce-focused 3PL providers in the United States, operating 40+ fulfillment centers across the US,…”

SIX-GATE READOUT

3/6 cleared

MOQ

No public minimum (contact for pricing tiers)

LEAD TIME

Same-day or next-day shipping for in-stock orders

Independent listing · no commercial relationshipRead the file →
Editorially listed · Reviewed Apr 4, 2026

FULFILLMENT 3PL

Shipfusion

Chicago, IllinoisDirectory Listing

“Shipfusion operates over 1,000,000 sq ft of warehouse space across four locations: Chicago, Las Vegas, York (Pennsylvania), and Toronto.…”

SIX-GATE READOUT

3/6 cleared

MOQ

Not publicly disclosed

LEAD TIME

Same-day or next-day shipping

SQF Certified
Independent listing · no commercial relationshipRead the file →
View all partners →

How It Works

1

Browse

Explore our directory of independently assessed supply chain partners. Filter by certifications, capabilities, and location.

2

Evaluate

Review detailed profiles with third-party certifications, documented limitations, and a transparent assessment approach for every profile.

3

Connect

Tell us about your project and Greg will personally review your inquiry to help you find the right partners.

Dr. James Pendleton, ND

Dr. James Pendleton, ND

Naturopathic Advisor at Inventory Ready

Licensed primary care physician practicing naturopathic medicine with over 20 years of clinical experience in nutrition, herbal medicine, and dietary supplement protocols, plus supplement R&D and formulation work for national manufacturers. Reviews Inventory Ready's technical content for accuracy.

Read full profile →

Guides & Resources

Reference material for evaluating supplement manufacturers and understanding compliance.

How to Evaluate a Supplement Manufacturer

A framework for assessing contract manufacturers for dietary supplements. What to ask, what to verify, and what red flags to watch for.

Read guide →

Assessed Supplement Contract Manufacturers (2026)

Dietary supplement contract manufacturers ranked by independently confirmed certifications and information transparency. Published method, no paid placements.

Read guide →

Assessed Supplement Testing Labs (2026)

Dietary supplement testing laboratories ranked by independently confirmed accreditations and service transparency. Published method, no paid placements.

Read guide →

Assessed Supplement Packaging & Labeling Companies (2026)

Dietary supplement packaging and labeling companies assessed for capabilities, certifications, and information transparency. Published method, no paid placements.

Read guide →

Understanding Supplement Manufacturing Costs

Real cost breakdowns for contract manufacturing dietary supplements. Per-unit pricing by dosage form, hidden costs, and how MOQs affect your budget.

Read guide →

Choosing a Dosage Form for Your Supplement

Capsules vs tablets vs powders vs gummies vs softgels vs liquids. A decision framework based on ingredients, cost, MOQ, consumer preference, and stability.

Read guide →

21 CFR Part 111: What Brands Need to Know

A plain-language guide to Current Good Manufacturing Practice (cGMP) requirements for dietary supplements under 21 CFR Part 111.

Read guide →

Supplement Compliance Risks: What Can Go Wrong

FDA warning letters, FTC penalties, recalls, and cGMP violations. Real enforcement examples and how to protect your brand from compliance failures.

Read guide →

Supplement Packaging and Label Compliance Checklist

FDA labeling requirements for dietary supplements. Supplement Facts panel rules, structure/function claims, common labeling mistakes, and state-level requirements.

Read guide →

Supplement Testing Requirements: What Brands Need to Know

Identity testing, potency, purity, microbial, heavy metals, and stability. How to read a Certificate of Analysis and what 21 CFR Part 111 requires.

Read guide →

Federal Regulatory Snapshot for Dietary Supplements (2026)

Official-source snapshot of the 2026 federal supplement regulatory landscape, including S.3677, H.R.7366, FTC penalty updates, and current FDA and FTC claims rules.

Read guide →

Tariff Snapshot for Supplement Sourcing in 2026

Official-source snapshot of the tariff programs affecting supplement imports in 2026, including Section 301, the current China reciprocal tariff floor, and the temporary Section 122 surcharge.

Read guide →

How to Vet a 3PL for Supplements

What to look for in a third-party logistics provider for dietary supplements. FDA requirements, temperature control, lot traceability, hidden fees, state restrictions, and questions to ask before signing.

Read guide →

How to Read a Certificate of Analysis (COA)

A buyer-side guide to reading Certificates of Analysis for dietary supplements. What each section means, what passing looks like, and when to push back on your manufacturer.

Read guide →

Quality Agreements: What Supplement Brand Owners Need to Know

Why every supplement brand needs a quality agreement before production starts. What to include, what to negotiate, and how this document protects your brand when things go wrong.

Read guide →

How to Choose the Right Certifications for Your Supplement Brand

A decision framework for supplement certifications. Which are legally required, which consumers care about, what they cost, and how to prioritize when budget is limited.

Read guide →

Supplement Certification Programs: How They Work, What They Prove, and How to Verify

Seven supplement certification programs compared by scope, sample source, transparency, and independence. Decision tree for Amazon, athletic, and pharmacy channels. Practical verification steps.

Read guide →

Ingredient Sourcing: How to Evaluate and Diversify Your Supply Chain

A practical guide to evaluating ingredient suppliers for dietary supplements. How to verify quality, build dual-source relationships, and reduce supply chain risk.

Read guide →

How Supplement Formulation Works: From Concept to Production-Ready Formula

A guide to the supplement formulation process. Custom vs private label, development stages, working with a formulation scientist, costs, and common mistakes.

Read guide →

Structure/Function Claims: What Supplement Brands Can and Cannot Say

A guide to structure/function claims under DSHEA. Legal boundaries, FDA notification, FTC advertising standards, and common claims mistakes for dietary supplement brands.

Read guide →

Your First Production Run: What to Expect

A step-by-step guide to your first supplement production run. What happens before, during, and after manufacturing, common first-run problems, and realistic timelines.

Read guide →

California Prop 65 for Supplement Brands: What You Need to Know

A guide to Proposition 65 compliance for dietary supplement brands. Which chemicals matter, testing options, warning label requirements, and why it affects brands selling outside California.

Read guide →

Amazon Supplement Requirements: What Brands Need to Know in 2026

Amazon's 2026 supplement requirements: cGMP verification from approved labs, claims alignment rules, category-specific testing, and how to avoid listing deactivation.

Read guide →

Supplement Launch Checklist: From Formula to First Sale

A phase-gated checklist for launching a dietary supplement brand. Business formation, product development, compliance, production, and go-to-market steps with realistic timelines.

Read guide →

Why Supplement Brands Fail: The Mistakes That Kill New Companies

The most common reasons supplement brands fail, from undercapitalization and regulatory ignorance to weak formulations and cash flow problems. Research-backed analysis with real examples.

Read guide →

How to Price Your Supplement: From COGS to Retail

A pricing framework for supplement brands. COGS breakdown by dosage form, margin targets by sales channel, pricing math, and common mistakes that destroy profitability.

Read guide →

Cash Flow for Supplement Brands: Managing Long Lead Times and Large Minimums

How supplement manufacturing's cash flow cycle works: long lead times, large deposits, and reorder timing. A practical guide to managing working capital for dietary supplement brands.

Read guide →

Supplement Inventory Management: Shelf Life, Reorder Timing, and Storage

How to manage inventory for dietary supplements. FEFO rotation, shelf life tracking, reorder point calculation, storage requirements, and reducing expired stock write-offs.

Read guide →

How to Choose a Testing Lab for Your Supplement

A guide to selecting a third-party testing lab for dietary supplements. ISO 17025 accreditation, test types, comparing quotes, and building a long-term lab relationship.

Read guide →

Adverse Event Reporting: What Supplement Brands Are Required to Do

Federal requirements for dietary supplement adverse event reporting. The 15-business-day rule, serious vs non-serious events, MedWatch filing, and building an AE response process.

Read guide →

Preparing for an FDA Inspection: What Supplement Brand Owners Should Know

What FDA inspectors look for at supplement manufacturing facilities. Form 483 observations, warning letters, documentation preparation, and the brand owner's role during an inspection.

Read guide →

What FDA Enforcement Changes Mean for Brands Choosing Manufacturers

How FDA workforce reductions are reshaping supplement manufacturing oversight. What verification signals brands should demand and which manufacturer red flags matter more when routine inspections decline.

Read guide →

Annual Compliance Calendar for Supplement Brands

A quarterly framework for ongoing supplement compliance. FDA registration renewal, cGMP audits, stability data review, insurance renewal, and monthly monitoring tasks.

Read guide →

Legal Risks for Supplement Brands: What Triggers Lawsuits and How to Prevent Them

The legal threats facing supplement brands: Prop 65 bounty hunter lawsuits, labeling class actions, claims challenges, and how to protect your brand through testing, documentation, and insurance.

Read guide →

Supplement Recalls: What Triggers Them and How to Prevent One

What causes dietary supplement recalls: contamination, mislabeling, undeclared allergens, and adulteration. Recall classes, the recall process, financial impact, and a prevention framework.

Read guide →

Starting a Supplement Brand with No Industry Experience

A practical guide for outsiders entering the supplement industry. Real costs, timelines, what manufacturers handle vs what you own, and how to start without a science degree.

Read guide →

Private Label vs Custom Formulation: How to Choose

A comparison of the four paths to supplement manufacturing: dropshipping, white label, private label, and custom formulation. Costs, timelines, margins, and when each option makes sense.

Read guide →

Manufacturer Readiness Assessment

Evaluate your readiness to work with a contract supplement manufacturer. Get a personalized checklist and guide recommendations based on your product, budget, and timeline.

Read guide →

What 'Made in USA' Actually Means for Supplements

The FTC standard for Made in USA claims on dietary supplements. What 'all or virtually all' means, why 70-75% of ingredients come from China regardless, and how to evaluate quality beyond country of origin.

Read guide →

How to Choose a Packaging Provider for Your Supplement

What to evaluate when selecting a supplement packaging provider. The CM-bundled vs. separate packaging decision, six evaluation criteria, real cost ranges, and questions to ask before committing.

Read guide →

How to Choose a Formulation Partner for Your Supplement

What to evaluate when selecting a formulation scientist or R&D partner. The formulator vs. CM distinction, IP ownership, stability testing, cost expectations, and questions to ask before committing.

Read guide →

What Are cGMPs for Dietary Supplements?

Current Good Manufacturing Practices (cGMP) for dietary supplements are FDA regulations at 21 CFR Part 111. This guide covers what cGMP includes, why FDA does not certify cGMP, and how to verify a manufacturer, with direct links to primary sources.

Read guide →

Supplement Preorder Strategy: How to De-Risk Your First Launch (Independent Guide)

A supplement preorder campaign validates demand before you commit capital to inventory. Here is how to structure a preorder, what conversion to expect, and the compliance guardrails.

Read guide →

How to Launch a Private Label Nootropics Brand: Business Mechanics and Compliance Guardrails (Independent)

Nootropics marketing sits in an FTC-enforcement-heavy lane. Here is the private label business mechanics, the ingredients to know, and the claim rules that keep new brands out of trouble.

Read guide →

How to Create and Sell Your Own Protein Powder: A Realistic 2026 Launch Guide (Independent)

Protein powder launches run $15,000 to $60,000 for a first production run. Whey is cheaper and simpler. Plant protein needs a more careful formulation pass. Here is what it takes to launch a competitive protein brand.

Read guide →

Choosing the Right Supplement Bottle Caps and Seals: Packaging Compliance and Integrity Guide

Supplement packaging choices affect shelf life, regulatory compliance, and consumer safety. Here is the practical decision framework for caps, liners, and seals across capsule, powder, and liquid formats.

Read guide →

The Supplement Manufacturing Process: 7 Stages From Formulation to Finished Product (Independent Guide)

Supplement manufacturing runs through seven stages: formulation, sourcing, testing, blending, dosage, packaging, and release. Each stage has compliance checkpoints under 21 CFR 111. Here is what happens at each.

Read guide →

Local vs Global Supplement Manufacturing: How to Choose in 2026 (Independent Assessment)

Local U.S. supplement manufacturing runs 30 to 60 percent higher in unit cost but simplifies FDA compliance and audit access. A decision framework for supplement brand founders.

Read guide →

How to Build a Functional Beverage Brand in 2026: 8-Step Launch Framework (Independent Guide)

Functional beverages classify as food, not supplements, under FDA rules. The right path for a new brand runs through 21 CFR Part 117 compliance, GRAS ingredient selection, and cold-chain logistics planning.

Read guide →

How Long Does Supplement Manufacturing Take? Real 2026 Lead Times by Product Type (Independent Assessment)

Private label supplement manufacturing runs 4 to 8 weeks. Custom formulations take 8 to 16 weeks. A realistic planning guide for brand founders, with timelines by product type, factors that cause delays, and how to reduce them.

Read guide →

How to Start a Nutrition Drink Business in 2026: A 10-Step Launch Framework (Independent Guide)

Nutrition drinks classify as food, medical food, or dietary supplement depending on your claims. The right classification determines your FDA pathway, label rules, and launch timeline. Here is the decision framework.

Read guide →

Where to Sell Supplements Online in 2026: Platform Comparison for Brand Founders (Independent)

Amazon carries the largest supplement brand owner audience but the strictest compliance rules. Shopify offers full brand control at higher marketing burden. Here is the realistic platform trade-off for a 2026 launch.

Read guide →

Third-Party Supplement Testing Explained

Third-party supplement testing verifies identity, potency, contaminants, and label accuracy through accredited independent laboratories. This guide covers what reputable programs actually verify, how 21 CFR Part 111 applies, and which certification programs matter, with direct links to program websites for current fees.

Read guide →

Supplement Facts Label: Requirements and Rules

A compliant Supplement Facts label under 21 CFR 101.36 must include serving size, declared dietary ingredients with daily values, and the DSHEA disclaimer on any structure/function claim. Here is the full element list with direct links to FDA and eCFR primary sources.

Read guide →

Supplement Manufacturing Cost Breakdown: Where Every Dollar Goes in a Real Quote (2026)

A typical supplement manufacturing quote splits across six line items. Raw materials run 40 to 55 percent. Packaging and testing each run 10 to 20 percent. Here is how to read and compare real quotes.

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How to evaluate a supplement contract manufacturer

Five categories of evidence: compliance maturity, capability fit, testing rigor, supply chain, service signals. The first three carry 75% of the weight in IR's assessment methodology.

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How to read a Certificate of Analysis (COA)

A Certificate of Analysis is a batch-specific lab document that proves a contract manufacturer verified the identity of an incoming dietary ingredient under 21 CFR §111.75. Bad COAs share three telltales: missing method IDs, missing specification limits, missing lab accreditation.

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21 CFR Part 111 for brand owners

The four sections of 21 CFR Part 111 that change how brand owners evaluate manufacturers: §111.75 (identity testing), §111.105 (QC personnel responsibilities), §111.210 (Master Manufacturing Records), §111.320 (scientifically valid laboratory methods).

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Capsules vs. tablets: which form factor and when

Capsules win on cost, speed, and consumer preference for most emerging brands. Tablets win on dose density, shelf stability, and per-unit economics at scale (above 25,000 units). Decision framework for under-800mg formulations + MOQ < 10,000.

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Can I launch a supplement brand with $20K to $40K?

Realistic launch budgets by form factor (capsules / tablets / gummies) for a single SKU at 5,000 units. Capsule floor is approximately $14,200; gummy floor is approximately $31,000. Honest split across formulation, production, packaging, and third-party batch testing.

Read guide →

7 capsule manufacturers IR has assessed for emerging supplement brands

Seven capsule contract manufacturers ranked by IR's transparency-weighted score against confirmed third-party certifications, published commercial transparency, and editorial disclosure discipline. None paid for placement; methodology, scoring, and per-vendor limitations disclosed inline.

Read guide →

Find the Right Partner

Describe your supplement project and Greg will personally review your inquiry to connect you with the right supply chain partners.

Tell Us About Your Project

186 vendors assessed across 8 categories. Each evaluated against our published assessment method.