At a Glance
- Tasks: Lead the growth of a premium blood testing and personalised supplements platform.
- Company: Join Third Space, a trusted brand in health and wellbeing.
- Benefits: Competitive salary, dynamic work environment, and opportunities for professional growth.
- Other info: Be part of a high-performing team driving innovation in health.
- Why this job: Make a real impact in health optimisation and personalisation.
- Qualifications: Experience in consumer health, supplements, and subscription business models.
The predicted salary is between 80000 - 100000 € per year.
We are seeking an experienced, commercially minded Head of Supplements to build and scale a premium blood testing and personalised supplements platform at Third Space. This is a senior, end‑to‑end role with full ownership of a strategically important growth pillar, combining blood diagnostics, nutritionist‑led interpretation and personalised supplement subscriptions. The role will take the business from concept through to scaled, profitable operation, leveraging Third Space’s trusted brand, affluent member base and deep credibility in performance, recovery and wellbeing. The opportunity is significant: research highlights strong latent demand and this role will be accountable for realising that potential.
Key Responsibilities
- Commercial Leadership & P&L Ownership
- Own full P&L responsibility for the supplements and blood testing business, including revenue growth, gross margin, cost control and EBITDA delivery.
- Define and execute the commercial strategy across supplements, blood testing, nutrition coaching and subscriptions.
- Build a subscription‑first revenue model, optimising pricing, bundles and retention to drive lifetime value.
- Set and manage pricing architecture across blood testing packages, consultations and personalised supplement stacks.
- Identify and unlock incremental revenue opportunities, including add‑on products, expanded ranges and adjacent health categories.
- Product & Proposition Development
- Lead the development of a tiered personalised health ecosystem, combining health‑goal‑based supplement recommendations, optional but differentiated blood testing via trusted lab partners, and nutritionist‑led interpretation with clear, prioritised guidance.
- Ensure all products and protocols are evidence‑based, credible and transparent.
- Own the core supplement range strategy, initially focused on high‑trust, high‑demand categories (e.g. protein, creatine, electrolytes, multivitamins, omega‑3, magnesium, vitamin D, iron).
- Decide where Third Space‑branded products versus selected third‑party products make most commercial and operational sense.
- Work closely with marketing and nutrition teams to ensure the proposition remains expert‑led and outcomes‑driven.
- Customer Journey & Experience
- Design and optimise the end‑to‑end customer journey, from health goals and lifestyle data capture through to fulfilment and ongoing re‑testing.
- Ensure blood test results and supplement recommendations are explained in clear, plain language, with prioritised actions members can trust.
- Embed outcome‑driven retesting (e.g. at 3–6 months) to demonstrate progress and drive subscription retention.
- Deliver a seamless experience across digital, in‑club and nutritionist touchpoints.
- Supply Chain, Operations & Compliance
- Own supplier strategy, including sourcing, negotiation and performance management across supplements, labs and logistics partners.
- Oversee manufacturing, inventory planning, warehousing and fulfilment, maintaining a capital‑light operating model.
- Balance scalability, speed, quality and cost efficiency across the supply chain.
- Ensure full compliance with all relevant UK regulatory, quality and safety standards for supplements and diagnostics.
- Growth, Performance & Data
- Define and track key performance metrics, including CAC, LTV, conversion, retention, AOV and subscription churn.
- Use data, experimentation and member insight to continuously refine the proposition and commercial model.
- Partner with marketing, ecommerce and in‑club teams to drive acquisition, education, conversion and repeat purchase.
- Apply learnings from Natural Fitness Food and wider member research, particularly around trust, pricing sensitivity and subscription behaviour.
- Leadership & Cross‑Functional Collaboration
- Build and lead a high‑performing supplements and ecommerce team as the business scales.
- Act as the internal authority on supplements, personalisation and the wider market landscape.
- Collaborate closely with product, nutrition, marketing, operations and finance teams.
Required Experience
Essential
- Significant experience in consumer health, supplements, personalised nutrition, ecommerce or adjacent sectors.
- Proven track record of owning and scaling a P&L in a subscription or repeat‑purchase business.
- Strong commercial judgement with a data‑driven, test‑and‑learn mindset.
- Experience managing suppliers, manufacturing, logistics and fulfilment partners.
- Clear understanding of personalised health, diagnostics or nutrition‑led propositions.
- Comfortable operating both strategically and hands‑on in a fast‑moving environment.
- Strong leadership, stakeholder management and communication skills.
Desirable
- Background in DTC health brands or premium subscription models.
- Familiarity with UK supplements regulation and quality frameworks.
- Experience working with nutritionists or practitioners supporting elite or high‑performance populations.
What Success Looks Like
- A scaled, profitable supplements and blood testing business with strong margins and predictable subscription revenue.
- Seamless integration between blood diagnostics, nutritionist guidance and personalised supplement plans.
- High member satisfaction, trust and retention, underpinned by measurable health outcomes.
- A robust, scalable and compliant supply chain.
- Third Space positioned as a long‑term health optimisation partner, not just a gym.
Head of Supplements employer: Third Space
At Third Space, we pride ourselves on being an exceptional employer, offering a dynamic work environment that fosters innovation and personal growth. As the Head of Supplements, you will have the unique opportunity to lead a premium health initiative within a supportive culture that values collaboration and expertise, while benefiting from our affluent member base and strong brand reputation. We are committed to your professional development, providing resources and opportunities to excel in your career as we collectively strive to redefine health and wellness.
StudySmarter Expert Advice🤫
We think this is how you could land Head of Supplements
✨Tip Number 1
Network like a pro! Reach out to people in the industry, attend events, and connect with potential colleagues on LinkedIn. You never know who might have the inside scoop on job openings or can put in a good word for you.
✨Tip Number 2
Prepare for interviews by researching the company and its products. Understand their mission and values, especially around personalised health and supplements. This will help you tailor your answers and show you're genuinely interested in the role.
✨Tip Number 3
Practice your pitch! Be ready to explain how your experience aligns with the role of Head of Supplements. Highlight your commercial acumen and any relevant successes in scaling businesses or managing P&L.
✨Tip Number 4
Don’t forget to apply through our website! It’s the best way to ensure your application gets seen. Plus, it shows you’re keen on joining our team and are familiar with our platform.
We think you need these skills to ace Head of Supplements
Some tips for your application 🫡
Tailor Your CV:Make sure your CV is tailored to the Head of Supplements role. Highlight your experience in consumer health, supplements, and subscription models. We want to see how your background aligns with our vision at Third Space!
Craft a Compelling Cover Letter:Your cover letter is your chance to shine! Share your passion for personalised nutrition and how you can drive growth in our supplements business. Let us know why you're the perfect fit for this exciting opportunity.
Showcase Your Commercial Acumen:Since this role involves P&L ownership, be sure to highlight your commercial achievements. We’re looking for someone who can demonstrate a strong track record in revenue growth and cost control—so don’t hold back!
Apply Through Our Website:We encourage you to apply directly through our website. It’s the best way for us to receive your application and ensures you’re considered for this fantastic opportunity to join our team at Third Space!
How to prepare for a job interview at Third Space
✨Know Your Numbers
As a Head of Supplements, you'll need to own the P&L. Brush up on your financial metrics like CAC, LTV, and EBITDA. Be ready to discuss how you've driven revenue growth and managed costs in previous roles.
✨Showcase Your Commercial Acumen
This role is all about commercial strategy. Prepare examples of how you've developed successful subscription models or optimised pricing strategies. Highlight your experience in consumer health and personalised nutrition to demonstrate your fit.
✨Understand the Customer Journey
The customer experience is key! Think about how you would design an end-to-end journey for supplements and blood testing. Be ready to share ideas on how to make the process seamless and trustworthy for members.
✨Collaborate Like a Pro
You'll be leading cross-functional teams, so emphasise your leadership and collaboration skills. Prepare to discuss how you've worked with marketing, product, and operations teams to achieve common goals in past roles.
