Your body has been compensating for years.
You just called it “fatigue”.

The Q-Go is chosen without a prior test or individual calibration. The Q-Pro is chosen after the Perfect Posture Test, which looks for your Q-Alpha, Q-Theta or Q-Omega profile. The Q-Go is not a substitute for the Q-Pro calibrated for posture on three planes.

No. The test costs €35 incl. VAT. For a first purchase with a test, allow €484 incl. VAT for the Q-Pro circuits or €534 incl. VAT for the Q-Pro insoles, excluding delivery. The HydroGuard option adds €12 incl. VAT to the circuits.

Possibly in part, and we won't tell you otherwise: nobody can rule out a placebo component without a randomised sham-controlled trial, which we have not yet run. What makes placebo alone an insufficient explanation: the effect disappears when the circuit is removed and returns when it is put back, and you can repeat the measurement yourself.

Good. The removal test is made for you: take the circuit away and the effect goes; put it back and it returns. And if the measurement doesn't move, your test is refunded.

No. The test is done in person with a certified tester, using manual strength and stability tests, mobility and postural observation. You have nothing to buy.

On the Find your tester page, you can widen the distance or ask to be told when a tester sets up near you. You can also start with the Q-Go, which doesn't need a test first.

Your order is prepared within 1 to 3 business days after payment, then delivered within 5 to 20 business days depending on the destination. These times are indicative. Shipping costs depend on the destination and are shown before payment.

The conditions depend on the product and how it's personalised: insoles cut to your size can't be returned just because you changed your mind. Every circuit carries a 2-year warranty against manufacturing defects. Read the returns policy before you order.

For some people, the body adapts during the first days: unstable energy, headaches, changes in sleep, more rarely passing muscle aches. Shorten wearing time, then increase it gradually. If it persists, take it off and write to us.

No. Q-Technology is a passive technology: no battery, no electrodes, non-invasive. It makes no diagnosis and has no therapeutic purpose. It can accompany follow-up care or rehabilitation; it does not replace them.

The tester runs a few simple tests without the technology (balance, mobility, strength), then repeats them with it. You compare on your own body. The 15-minute Perfect Posture Test goes further: it determines your biophysical profile.

It is a passive resonant circuit, with no battery and no electrodes. It has no emission of its own and no app: it captures ambient electromagnetic energy within its own resonance band and converts it into a coherent signal. Our working model: it is as if this signal spoke the nervous system's own language. You verify the result on your own body.

The most common placement is under the arch of the foot: directly on the skin, on your sock or inside your shoe, held with Q-Tape. Depending on your activity, you can also wear them on top of the foot, on the lower back or inside the back of your shorts, which works well barefoot (combat sports, yoga). Two rules matter: follow the zone and orientation shown in the guide's photos (logo visible or logo against the skin, depending on the circuit), and make sure the circuit stays firmly in place without discomfort.

Both PDF guides, one for circuit placement and one for insoles, are on the Resources page.

The technology is the circuit. The insole is just its carrier. With insoles, the circuits are already in the right place in your shoe. With standalone circuits, you attach them yourself with Q-Tape: you can switch shoes, wear them barefoot or in clothing. When an insole wears out, you replace it and keep your circuits; the insoles guide shows how.

The circuits are passive, with no battery: nothing to charge or replace, and we don't set a lifespan for them. What wears out is the carrier (insole, adhesive), not the circuit. The circuits come with a 2-year warranty.

"There's no planned obsolescence. The circuits are very durable: they aren't meant to stop working after 2 years. I've worn mine for 5 years and they still work very well. I still recommend having them checked every 2 years: your biophysical profile may have changed, and we make sure your circuits are still fully effective." Nicolas Desjardins, founder

The simplest way: take a new Perfect Posture Test with a certified tester. They retest your circuits and tell you whether they still work, and whether your profile has changed.

If that isn't possible for you, email us at office@qbiohacking.com: we'll explain the procedure by email. If there's any doubt, you send us your circuits (shipping to us is at your expense) and we test them. If they work, we send them back at our cost. If they no longer work and the warranty applies, we send you new circuits free of charge and refund your shipping. Outside the warranty, new circuits can be ordered.

You buy it remotely and run the 10 tests of the 120-second demo. If it doesn't correct, we check together on a video call. If it still doesn't correct, the circuits are refunded, within 30 days. Insoles and return shipping remain at your expense. Full details are in our Terms and Conditions.

Yes. Monthly instalments are offered directly at checkout.

Training is reserved for certified testers. To access it, go through the Become a tester path.