BioFiber
Your gut and blood sugar
Most people fall short on fiber. It keeps digestion regular, feeds your gut and steadies blood sugar after meals.*

The protocol · Five formulas
The five foundational supplements. One complete daily stack.
The five formulas inside
Coming soon
Not available just yet.
This formula is in production. Leave your email and we will let you know the day it is ready.
Bloodwork panels are available now.
Why these five
These are the five we put behind every protocol. Not because they are trendy, but because they cover the gaps we see most consistently when we read our clients’ bloodwork, and each one does a job the others can’t.
BioFiber
Most people fall short on fiber. It keeps digestion regular, feeds your gut and steadies blood sugar after meals.*
Creatine
Supports strength, lean muscle and brain energy, the foundations of aging well.*
Cardio Plus
EPA and DHA support heart health, brain function and a healthy inflammatory response.*
Methyl+
Active B vitamins your body can use right away, supporting energy, mood chemistry and DNA repair.*
D3 + K2
Vitamin D supports immunity and mood, and K2 sends calcium to your bones.*
In our work with clients, these are the five we would not leave out. Together they cover how you make energy, how you handle fuel, how you repair, and how your heart, gut and bones hold up over time.
Questions
All five formulas in one box, on the delivery schedule shown at checkout. You can pause, skip, or cancel anytime from your account.
Yes. Every formula is also sold on its own. The bundle simply packages the five that form the core daily foundation, at a lower combined price.
Anytime, from your account. Pause between cycles or cancel outright in a couple of clicks.
The Rethryv Program
Six months with one physician-led team. We start with your bloodwork, bring in everything about how you live, build your personalized Longevity Blueprint and guide you through it every day.
Starting at $299/mo