Brello Health vs. Function Health (2025): Which Personalized Supplement Service is Better?

Posted on | by Natalia

Bottom Line Up Front: The choice between Brello Health and Function Health hinges on your primary goal: actionable supplement delivery or comprehensive data and discovery.

  • Brello Health is a personalized vitamin service that uses a targeted lab test to create and deliver a custom supplement pack to your door. It’s best for those who want a hands-off, convenient solution.
  • Function Health is primarily a comprehensive membership-based blood testing platform that provides deep health data and suggests supplements for you to buy elsewhere. It’s best for data-driven biohackers who want full control over their regimen.

This isn’t about one being objectively “better,” but about which is better for your specific needs.

At a Glance: Brello vs. Function

| Feature | Brello Health | Function Health |
| :— | :— | :— | :— |
| Core Philosophy | “We test you and deliver tailored supplements.” | “We give you deep data and insights; you decide what to do.” |
| Primary Service | Personalized supplement delivery service | Membership-based health testing & insights platform |
| Testing | Targeted deficiency test (included in kit) | 100+ blood biomarkers (core part of membership) |
| Supplements | Custom pre-made pack delivered to you | Curated list of recommendations to buy from 3rd parties |
| Key Differentiator | Convenience of an all-in-one solution | Unmatched depth of health data and tracking |
| Ideal User | Someone who wants a done-for-them solution. | A biohacker who loves data and self-experimentation. |

The User Journey: Two Very Different Paths

The experience from start to finish is fundamentally different for each service. This timeline illustrates the key steps and commitments for both.

Deep Dive: Testing & Personalization

This is where the two services diverge most significantly.

Brello Health: Focused Testing for Supplement Formulation

  • The Test: A single, targeted at-home finger-prick test focused on key vitamin, mineral, and hormone levels relevant to supplement formulation (e.g., Vitamin D, B12, Testosterone, Cortisol).
  • The Goal: The test has a specific job: to provide the data points needed to create an effective custom supplement pack. It is a means to an end.
  • Personalization: The algorithm, plus medical review, creates a unique blend of supplements delivered in daily packs. The convenience is the product.

Function Health: Comprehensive Testing for Discovery

  • The Test: A massive, 100+ biomarker blood test performed at a Quest Diagnostics lab. This covers everything from metabolic health and hormones to heart and liver function.
  • The Goal: To give you a panoramic view of your health, uncover hidden issues, and track changes over time. The data itself is the primary product.
  • Personalization: Based on your results, Function provides dietary, lifestyle, and supplement recommendations. However, you must go to Amazon, Whole Foods, or other retailers to purchase these supplements yourself.

Pricing & Value: A Clear Cost Comparison

The financial investment is structured very differently. The following graph illustrates the first-year cost for each service, highlighting the initial and ongoing components.

Note: The $399 for Function Health supplements is a conservative estimate based on purchasing several recommended products throughout the year. Your actual cost may vary.

Value Verdict:

  • Brello’s cost is all-inclusive: testing, formulation, and supplements are covered.
  • Function’s membership is for the testing and platform. Supplements are an additional, significant out-of-pocket expense.

Final Recommendation: Who Should Choose Which?

Choose Brello Health if:

  • Your main goal is to receive a personalized supplement pack without the hassle of shopping.
  • You value convenience and a “done-for-you” approach.
  • You don’t need a full health panel and just want data relevant to supplementation.
  • You prefer a simple monthly subscription without a large upfront membership fee.

Choose Function Health if:

  • You are a data enthusiast who wants to see and understand a comprehensive set of 100+ blood biomarkers.
  • You want to track your health metrics over time and see the impact of your diet, lifestyle, and supplements.
  • You prefer to research and choose your own supplement brands, strengths, and vendors.
  • You are willing to pay an upfront membership fee for deep insights and are comfortable buying supplements separately.

While comparing services, Brello stood out for its convenient all-in-one approach. If you decide it’s the right fit, be sure to check for the latest Brello promo codes to make the most of your investment

Frequently Asked Questions (FAQ)

Q: Can I use both services together?
A: Absolutely. This is a powerful combination. Use Function Health for its unparalleled annual blood panel to get the full picture of your health. Then, use Brello Health for targeted follow-up tests and the convenience of getting a custom supplement pack delivered based on those specific results.

Q: Which one has a better doctor review?
A: Both services have healthcare professionals review results. Function Health provides more detailed clinical insights alongside your data, while Brello’s review is focused on ensuring your supplement formula is safe and appropriate.

Q: Which is better for tracking health over time?
A: Function Health is the clear winner for tracking. Its annual membership includes follow-up tests and a dashboard designed to compare your biomarker changes over time, which is invaluable for measuring progress.

Q: Is Brello’s test enough?
A: For the purpose of creating a supplement regimen, yes. For a complete picture of your cardiovascular, metabolic, and organ health, Function’s test is far more comprehensive.

The Bottom Line

Your choice ultimately depends on what you value most:

  • For Convenience and Action: Brello Health is the better service. It takes the thinking out of the process and delivers a tailored solution to your door.
  • For Data and Control: Function Health is the superior platform. It empowers you with deep knowledge and lets you make your own informed decisions about your health strategy.