Your body isn't average. Your protocol shouldn't be either.
Solid turns your bloodwork, your goals and how you feel into a personal supplement protocol, plus a coach that answers your questions from your own data. Built around you, never a template.
Your labs, complaints and goal become one 4-week protocol.
Enter your 18 lab markers, choose from 12 complaints and set one goal. Solid reads all three and builds a focused 4-week plan of around six supplements, each drawn only from the curated 40-compound library. Every pick carries a dose, a timing, a plain reason it earned its place and the mechanism it supports. Nothing invented, nothing generic.
- Around six compounds a cycle, each pulled from the same curated 40-ingredient library, never invented on the fly
- A dose, a timing and a plain-language reason for every pick, plus the mechanism it supports
- A matching nutrition plan in everyday language, no gram-counting required
- An honest "typically felt in ~X" note on each supplement, always paired with "individual response varies"
Every marker read. Every pick shows its evidence.
Your 18 on-file markers, from testosterone, free T and SHBG to ApoB, hs-CRP, HbA1c, vitamin D and cortisol, are read into your plan. Each finding is described by its number and range and framed as headroom to optimise, not a diagnosis. And no compound is a black box: every one carries the mechanism it supports and an honest evidence tier, so you always know how firm the ground is.
- 18 markers read into every protocol, described by number and range, never a clinical label
- In-range but below-optimal markers framed as headroom to optimise, never a deficiency
- Each protocol pick carries a good, moderate or mixed tier; in Ask Solid, recommendations carry a fuller strong-to-emerging rating
- Where the science is still forming we say so plainly: promising, but not yet definitive
→ Addressed byVitamin D3 + K2 and an iron-focused foundation are already in your stack, each described as support, not a promised number.
Your own supplement coach, on call.
Ask anything about your stack and get an answer grounded in the same 40-compound library and your own context: your labs, your complaints, your current supplements and your recent logs. Not a generic chatbot. A specialist that stays in its lane, surfaces interaction and "avoid combining" notes, and points every clinical question to your doctor.
- Grounded only in the 40-compound library and your real data, not the open internet
- A 10-rule guardrail sits over every answer and overrides everything else
- Flags interactions and "avoid combining" notes before you act
- Never diagnoses and never clears a combination for you: it sends the final call to your doctor or pharmacist, by design
See which supplements line up with your better days.
This is the part a tracker cannot do. For each supplement, Solid compares the days you took it against the days you skipped it, right across how you slept, recovered and felt. When there is a clear, consistent gap, it shows you the ones that line up with your better days, a pattern from your own logs, never a promise.
- On-days versus off-days across energy, recovery, deep and REM sleep, HRV, resting heart rate, sleep quality and efficiency
- It needs both on-days and off-days before it says anything, so the read is earned, not assumed
- Every compound labelled lines up, no clear link, no signal or not enough variation
- Framed clearly as an association from your own logs, not clinical evidence or a guaranteed effect
Sync Oura or Polar. Or log by hand.
Oura and Polar sync is rolling out; connect a supported device to pull last night's sleep and recovery into your daily log, or enter it yourself in seconds, from any wearable or none. Every analysis, your scorecard, your cycle signature, your insights and your briefings, runs the same either way. No wearable required. Solid sits on top of your data and reads recovery into action. It is not a sensor.
- Oura and Polar sync (rolling out); everything works fully from manual logs today, no wearable needed
- Fast-log captures energy, sleep, HRV, resting heart rate, recovery, training and which supplements you took
- Your labs and health inputs are treated as special-category data, processed only on your explicit consent
Synced or entered by handThe same reads run whether these numbers came from Oura, Polar or your own log.
One plan each morning. A read on every week.
Every morning Solid reads last night against your last few days and where you are in your protocol, then hands you a short headline and a couple of concrete actions. Exactly one AI call a day. At night it picks a guided wind-down to fit the day you actually had. And at the close of each week it gives you a plain read on the days you logged, lowering its own confidence when you skip.
- A morning briefing built from last night's recovery and your protocol week, one AI call per day
- 9 guided wind-down sessions, breathing, meditation, NSDR and restorative yoga, chosen by rule from your own numbers, instant and offline
- A plain-language read on each week you log, plus a 4-week check-in that separates what held from noise
- A personal 28-ray cycle signature that grows from each day's recovery and sleep, a reflection, not a score to chase
Every cycle, your plan gets closer to you.
At the end of each 4-week cycle, Solid builds your next protocol from the last one, your check-in and your scorecard. It keeps the compounds your logs lined up with, drops the ones that showed no measurable association, and changes one deliberate lever. A closed loop, cycle over cycle.
- Keeps compounds your metrics lined up with, drops the ones that didn't, adds one new lever
- Resolved by compound, so a change of form reads as kept, not a restart
- Progress shown from your own measured metrics and labs, cycle over cycle, never model-invented numbers
- It lowers its own confidence on the weeks you skip logging, and tells you so
From sign-up to your first protocol in minutes.
Bring your numbers
Add your 18 lab markers, pick the complaints you feel and set one goal. Oura and Polar sync is rolling out, or log by hand. No wearable needed to start.
Get your protocol
Solid builds a 4-week protocol of around six supplements from the curated 40-compound library, each with a dose, a timing and a reason. Ask Solid anything along the way.
Log, learn, evolve
Log your days so your scorecard can see what lines up with your better days. Every cycle, your protocol evolves from your own data.
One membership. The whole loop.
- Personal 4-week protocol from the curated 40-compound library
- Ask Solid, grounded in your data with a 10-rule guardrail
- A scorecard that shows which supplements line up with your better days
- An evolving protocol, weekly insights and a 4-week check-in
- Morning briefings and 9 guided wind-down sessions
- Your personal 28-day cycle signature figure
- Oura and Polar sync (rolling out), or manual logging, wearable optional
- Export your protocol in-app, delete your account anytime, full-record copy on request
Less than a month of guessing at the supplement shelf, for a plan that actually reflects you.
Good questions, straight answers.
Is this medical advice? ＋
No. Solid Protocol is educational wellness, not a diagnosis and not a medical device. It uses structure and function language, it supports normal, healthy function rather than treating conditions, and it defers anything clinical, medication, diagnosis or off-panel labs, to your doctor or pharmacist.
Do I need a wearable? ＋
No. Oura and Polar sync is rolling out; you'll be able to connect a device to import last night's sleep and recovery, and you can log energy, sleep, HRV, resting heart rate and training by hand in seconds today. Your scorecard, cycle signature, insights and briefings all run from manual logs too.
Where do the supplements come from? ＋
Every recommendation is drawn only from one curated library of 40 compounds. Solid never invents an ingredient. Each pick arrives with its dose, timing, mechanism and an honest evidence tier.
How does it know which supplements work for me? ＋
It compares the days you took a supplement against the days you skipped it across up to eight daily signals, and flags the ones that line up with your better-logged days. This is an association from your own logs, not proof of an effect and not a clinical result.
Does my protocol change over time? ＋
Yes. At the end of each 4-week cycle, Solid builds your next protocol from the last one, keeping what your data lined up with, dropping what showed no measurable association and changing one deliberate lever.
Will it clear a supplement combination for me? ＋
By design, Solid never tells you a supplement or combination is fine to take on your own. It surfaces interaction and "avoid combining" notes and points you to your doctor or pharmacist for the final call.
How is this different from my tracker? ＋
Trackers show you a recovery score and leave the next move to you. Solid turns your labs, complaints and goal into a supplement protocol, shows which compounds line up with your better days, and evolves the plan every 28 days. It reads your data into action.
What happens to my data? ＋
Your lab and health inputs are treated as special-category data, processed only on your explicit consent. You can export your protocol in the app and delete your account and all its data at any time; a copy of your full record is available by email on request. It stays yours.
Stop guessing. Start with a plan built for you.
A protocol from your labs, a coach grounded in your data, and a loop that learns you a little more every cycle. Small, guided choices that compound into something that finally feels like yours.
Build my protocol