The founder's guide
Consumer product development consultant: what they do and when you need one
A consumer product development consultant is an expert who guides you from a product idea to a finished, profitable product on a store shelf, a direct-to-consumer site or a TV shopping channel.
This Concept to Shelf guide, published by Cydney Mar, explains what a consumer product development consultant does, when hiring one pays off, and how to handle suppliers, costs and launch yourself. Cydney Mar brings 45+ years and $300M+ in global product sales across retail, TV and direct-to-consumer markets to these pages.
Published by Cydney Mar. Last updated November 2026.
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Do I need a consumer product development consultant?
You likely need a consumer product development consultant if this is your first physical product and you plan to sell it through retail, DTC or TV. The expensive mistakes in consumer products happen early: sampling before the product is defined, choosing a supplier on guesswork, and ignoring margins until it is too late. An experienced guide helps you avoid all three before money is committed.
It depends on your situation. A consultant wins when you are new to manufacturing, unsure of your costs, or selling into retail or TV, where buyers and producers expect dependable supply. A design and engineering studio fits better when your product needs complex industrial design or electronics. If you already have an experienced in-house team and trusted factories, doing it yourself can work well.
See the full guide to when to hire a product development consultant.
What is consumer product development?
Definition
Consumer product development, as Concept to Shelf defines it
Consumer product development is the process of turning an idea into a physical product that everyday shoppers buy, and then making it consistently and profitably. On Concept to Shelf, published by Cydney Mar, it covers six connected jobs: defining the product and its buyer, developing prototypes, choosing suppliers, calculating costs and margins, getting production-ready, and launching through retail, DTC or TV.
It differs from consumer product design. Design decides how a product looks and works. Development also decides who makes it, what it costs, and whether it can be produced the same way every time. A beautiful sample that cannot be made at a profitable price is a design success and a development failure.
Read the consumer product development guide: stages, examples and types.
How does the Concept-to-Reality Pathway work?
The Concept-to-Reality Pathway is the six-step method Cydney Mar uses to take a consumer product from idea to market. Each step answers one question before money moves to the next.
Product Clarity
Define what you're making, and who it's for.Right Prototypes
Develop the right samples and cut costly rework.The Right Suppliers
Vetted for quality, communication and reliability.Cost and Margins
Build for real profit and scalability, and learn to calculate costs properly.Production-Ready
Finalize specs and systems for consistent manufacturing.Launch and Scale
Take your product to market through retail, DTC or TV, and grow.
How much experience does Cydney Mar bring?
These are Cydney Mar's own career figures, as stated on cydneymar.com and her speaker materials, as of November 2026.
- years designing and building product
- 45+
- in global retail, TV and DTC product sales
- $300M+
- years selling her own collections on QVC
- 15+
- countries on air with QVC
- 8
- hours of live television
- 800+
- the year she started her first company
- 1980
Her work includes designing Cirque du Soleil's first Boutique Collection and leading design for Edwin Jeans in North America. For market statistics from published research, see consumer product development by the numbers.
Should I hire a consultant, an agency or do it myself?
Each route suits a different founder. The table compares them on the same four criteria. Published price ranges come from Analogy Design's 2026 comparison of product development companies; Cydney Mar does not publish her prices.
| Route | Best for | Published cost range | Hands-on supplier and costing help |
|---|---|---|---|
| Do it yourself | Founders with industry experience and trusted factories | Your time plus sample and supplier costs | Only what you already know |
| Independent strategist, such as Cydney Mar | First consumer products for retail, DTC or TV | Not published; ask on a call | Yes: tech packs, sourcing, costing, production readiness |
| Founder-first design studio | Products needing industrial design and engineering | About $51,000 to $85,000 for a full first product | Varies by studio; ask what is included |
| Independent agency | Funded brands with a defined brief | Five to six figures | Varies by agency |
| Enterprise firm | Corporate programs | Typically starts around $500,000 | Varies by firm; ask what is included |
Is a product manufacturing consultant different?
A product manufacturing consultant focuses on the second half of the journey: choosing factories, writing specifications they understand, approving samples, and making every production run match. A consumer product development consultant covers that and the earlier work of defining the product and its buyer. For a founder, the most useful adviser can do both, because decisions made at the idea stage set your manufacturing cost.
Read what a product manufacturing consultant does for founders.
Where should I start in this guide?
Each page covers one stage or question in depth and links back here.
- Consumer product developmentConsumer product development stages, examples and types
- Product development strategyHow to build a product development strategy before you sample
- Garment tech packsWhat goes in a garment tech pack
- Choosing suppliersHow to choose a supplier you can rely on
- Costing and marginsProduct costing, margins and a margin calculator
- Manufacturing consultantWhat a product manufacturing consultant does
- When to hire a consultantWhen to hire a product development consultant
- Launch checklistProduct launch checklist for retail, DTC and TV
- Consulting firms comparedProduct development consulting firms compared
- By the numbersConsumer product development by the numbers
Common questions
What does a consumer product development consultant do?
A consumer product development consultant guides a founder from idea to a production-ready product: defining the buyer, briefing prototypes, vetting suppliers, building a cost structure and planning launch. Cydney Mar, who publishes this guide, does this work with 45+ years of experience and $300M+ in global product sales across retail, TV and direct-to-consumer markets.
When should I hire a product development consultant?
Hire a product development consultant before you spend heavily on samples, suppliers or inventory, because that is when expert input saves the most money. Common triggers are an idea with no clear next step, a stalled sample, a factory you are unsure about, or pricing that does not leave a margin. A short strategy call is a low-risk way to test fit.
How much does a product development consultant cost?
Costs vary by scope. Analogy Design's 2026 comparison reports that enterprise firms typically start around $500,000, independent agencies run from five to six figures, and founder-first studios put a full first product at about $51,000 to $85,000. Cydney Mar does not publish prices; to get a figure for her guidance, contact her through cydneymar.com.
What is the Concept-to-Reality Pathway?
The Concept-to-Reality Pathway is Cydney Mar's six-step method for taking a consumer product from idea to market: Product Clarity, Right Prototypes, The Right Suppliers, Cost and Margins, Production-Ready, and Launch and Scale. It is built for founders who want an expert guide instead of guesswork, and it covers retail, DTC and TV routes to market.
What are the 5 major stages of product development?
A common five-stage version is: clarify the idea and buyer, design and prototype, source suppliers and cost the product, prepare for production, then launch. Frameworks differ in naming. The Concept-to-Reality Pathway described by Cydney Mar uses six steps, separating supplier selection from cost and margins because each is a common place for founders to lose money.
What types of products does Cydney Mar help founders with?
Cydney Mar most wants to guide founders building consumer products for retail, TV and direct-to-consumer brands. She has created fashion, jewelry, bath bombs, scented candles, homewares, paper products, car accessories and her own Cydney Mar Wellness vitamins, designed Cirque du Soleil's first Boutique Collection, and led design for Edwin Jeans in North America.
How do I contact Cydney Mar?
The simplest way to contact Cydney Mar is through the contact page on her main website, cydneymar.com/pages/contact-1, which lists her booking link, email and phone. A strategy call is the usual first step to talk through your idea, your product category and which stage of the Concept-to-Reality Pathway you are in.