Safety · Protocols

Safety &
Contraindications

The safety of every participant is our absolute priority. Each protocol is scientifically framed. This page details the conditions to be observed for each technology offered.

Foreword

A scientifically
framed approach

All our technologies are used under the responsibility of trained practitioners. A medical questionnaire and a pre-assessment interview are systematically conducted before any care begins.

⚠ Medical disclaimer The information presented on this page is provided for general informational purposes only. It does not replace an individualised medical consultation. In case of doubt, you must consult your treating physician or Dr Coester, partner physician, before any session.
✓ Our safety commitment Before each programme, a detailed health questionnaire is completed by the participant. Dr Denys Coester, partner physician, contributes to file validation and protocol adaptation to the individual state of health.
Absolute contraindication · technology not recommended
! Relative contraindication · medical advice required
Compatible under supervision
By technology

Contraindications
by technology

Each technology has its own inclusion and exclusion criteria. Please review the cards below before your first session.

Light · Laser
Photobiomodulation
Low-level laser therapy (LLLT) · Red & near-infrared LED
  • Active cancer or history of tumour photosensitivity
  • Direct application on the eyes (protection mandatory)
  • Areas with non-compatible photosensitive implants
  • Pregnancy (avoid lumbar and abdominal exposure)
  • Use of photosensitising medication (tetracyclines, isotretinoin…)
  • Photosensitive epilepsy
  • Active skin conditions on the treated areas
  • Well-controlled diabetes · compatible with monitoring
  • Post-operative scarring · beneficial on medical prescription
Brain · EEG
Neurofeedback
Real-time EEG biofeedback brain training
  • Uncontrolled epilepsy (some protocols contraindicated)
  • Acute psychosis or ongoing dissociative episode
  • Bipolar disorder · requires advice from the treating psychiatrist
  • Use of psychotropics (benzodiazepines, antipsychotics) · protocol adaptation
  • ADHD with ongoing stimulant treatment · medical coordination required
  • Recent head trauma (less than 6 months)
  • Generalised anxiety · indicated and well tolerated
  • Sleep disorders · documented scientific results
Heart · Coherence
HRV Biofeedback
Heart rate variability · Cardiac coherence
  • Severe untreated cardiac arrhythmia
  • Pacemaker carriers (some devices incompatible · verification required)
  • Heart failure · cardiologist advice required
  • Severe uncontrolled high blood pressure
  • Post-infarction recovery (less than 3 months)
  • Chronic stress and burnout · indicated as first-line treatment
  • Mild to moderate, well-controlled hypertension · beneficial
Composition · Body
Bioimpedance analysis
Body composition analysis by electrical bioimpedance
  • Pacemaker or implantable defibrillator carriers
  • Electroconductive metal prostheses (some models)
  • Pregnancy · measurement not recommended, results unreliable
  • Significant fluid retention (oedema, ascites)
  • Renal insufficiency · results to be interpreted with caution
  • Overweight and obesity · compatible and indicated
  • High-level athletes · valid and accurate measurement
Drainage · Circulation
Pressotherapy
Sequential pneumatic compression of the lower limbs
  • Acute or recent deep vein thrombosis (DVT)
  • Decompensated heart failure
  • Skin infection or open wound on the treated areas
  • Active malignant tumour in the compressed areas
  • Pregnancy · to be avoided in the first trimester
  • Diabetes with advanced peripheral neuropathy
  • Anticoagulants (warfarin, DOACs) · medical advice required
  • Mild chronic venous insufficiency · highly indicated
  • Sports recovery · validated protocol
Breathing · O₂
Oxygen therapy
Inhalation of enriched oxygen · EWOT (Exercise With Oxygen Therapy)
Device used: Y-X02W concentrator · PSA method (Pressure Swing Adsorption) · Oxygen purity 93% ±3% · Adjustable flow 1 to 10 L/min · Atmospheric pressure 86 to 106 kPa (normobaric) · Integrated dual humidification
  • Severe COPD (chronic hypercapnia)
  • Stage IV COPD with hypoxic drive dependence · risk of respiratory depression
  • Active or recent pneumothorax
  • Certain ophthalmic conditions (oxygen-dependent retinopathy)
  • Children under 3 years of age · no adapted protocol available
  • Severe claustrophobia · the mask may trigger an anxiety attack
  • Uncontrolled asthma · medical supervision mandatory
  • Pregnancy · obstetrical advice required
  • Hyperthyroidism · increased monitoring
  • Epilepsy · some protocols not recommended
  • Chronic fatigue and lack of energy · indicated
  • Athletic performance and recovery · validated protocol
Effort · Heat
Infrared HIIT
High-intensity interval training in an infrared environment
  • Severe uncompensated cardiovascular disease
  • Active fever or acute infection
  • Heating metal implants in exposed areas
  • Uncontrolled high blood pressure
  • Pregnancy · not recommended beyond the 1st trimester
  • Unbalanced hypothyroidism or hyperthyroidism
  • Multiple sclerosis (heat may temporarily worsen symptoms)
  • Overweight · documented effectiveness with supervision
Light · Sleep
Light therapy
Exposure to broad-spectrum white light · Circadian regulation
Two devices used: fixed light panels (10,000 lux) and Luminette 3 (mobile light glasses). The contraindications apply to both devices · no scientific difference.
  • Active eye disease (AMD, unstabilised glaucoma, retinopathy)
  • Use of photosensitising medication
  • Bipolar disorder · risk of manic switch, psychiatric advice required
  • Photosensitive epilepsy
  • Systemic lupus erythematosus (photosensitivity)
  • Seasonal depression · first-line treatment
  • Circadian shift and shift work · highly effective
Light · Consciousness
Dream Machine
Stroboscopic photostimulation · Induction of altered states of consciousness
  • Epilepsy or history of seizures · risk of triggering by repeated light stimulation
  • Minors under 18 years of age
  • Pregnancy
  • Active eye conditions: AMD, unstabilised glaucoma, retinopathy, recent eye surgery (less than 3 months)
  • Severe psychiatric history: psychosis, schizophrenia, dissociative disorder
  • Uncontrolled neurological disorders
  • Migraines with aura
  • Bipolar disorder · risk of manic switch, psychiatric advice required
  • Use of photosensitising medication
  • Severe anxiety or claustrophobia · the experience can be destabilising
  • History of psychological trauma · altered states may reactivate it
  • Chronic stress and burnout · indicated in the Wired protocol
  • Sleep disorders · documented sleep sessions
  • Difficulty mentally disconnecting
⚠ Scientific note: The Dream Machine induces altered states of consciousness with visual hallucinatory phenomena. Clear prior information and a signed informed consent form are mandatory before any session. Use is not recommended in a B2B context without a reinforced prior information protocol.
Field · Cellular
PEMF
Low-frequency pulsed electromagnetic fields · Power Mat Charlotte Muller
  • Pacemaker carriers or active electronic implants
  • Pregnancy · avoid abdominal exposure
  • Active tumour in the treatment area
  • Ferromagnetic metal implants in the treated area
  • Epilepsy · some protocols to be adapted
  • Severe low blood pressure
  • Coagulation disorders
  • Stress, anxiety, hyperactivity of the nervous system · highly indicated
  • Mild to moderate sleep disorders
  • Chronic and inflammatory pain
  • Post-exercise recovery
Relaxation · Nervous system
Neuro-relaxation
Sonic vibration · Gentle somato-sensory stimulation
  • Acute psychiatric disorders
  • Marked sensory hypersensitivity
  • Stress, anxiety, hyperactivity of the nervous system · highly indicated
  • Mild to moderate sleep disorders
  • Post-exercise and post-stress recovery
Muscle · Electrostimulation
Bodysculpt / EMS
High-intensity muscle electrostimulation (HIFEM / EMS)
  • Pacemaker or implantable defibrillator carriers
  • Metal implants in the treated areas
  • Pregnancy
  • Severe disc herniation or unstable spinal pathology
  • Epilepsy · neurological advice required
  • Active cancer · not recommended on treated areas
  • Coagulation disorders or anticoagulants
  • Post-immobilisation muscle atrophy · highly indicated
Imaging · Diagnostic
Thermography
Non-invasive infrared imaging · Body thermal assessment
  • Application of creams or cosmetics within 4 hours before the session · falsified results
  • Intense physical activity less than 4 hours before the session
  • Sun exposure or hot bath less than 2 hours beforehand
  • Non-invasive · no known absolute contraindication
  • Compatible with all medical conditions (passive imaging)
  • Pregnancy compatible
Nutrition · Supplements
Micronutrition & Supplementation
Targeted supplementation based on individual biological profile
  • No supplement prescribed without prior biological assessment
  • Renal insufficiency · dosages must be adapted
  • Hepatic insufficiency · supplement metabolism altered
  • Possible drug interactions (anticoagulants, immunosuppressants)
  • Pregnancy and breastfeeding · specific protocol under supervision
  • Known food allergies · systematic verification of excipients
  • All supplementation is validated by our reference physician
Sensitive populations

Profiles requiring
special attention

These profiles are not excluded from our programmes, but systematically require a thorough medical interview before any care begins.

🤰
Pregnant & breastfeeding women

Several technologies are not recommended or require specific adaptations. Obstetrical advice is systematically required before any session.

❤️
Cardiovascular diseases

Heart failure, arrhythmias, history of heart attack or recent stroke. Personalised protocol mandatory with the treating cardiologist's advice.

Carriers of electronic implants

Pacemaker, implantable defibrillator, insulin pump, neurostimulator. Incompatible with several technologies · case-by-case assessment.

💊
Heavy medical treatments

Anticoagulants, immunosuppressants, chemotherapy, psychotropics. Possible interactions with certain technologies · mandatory disclosure at the initial assessment.

🧠
Neurological & psychiatric disorders

Epilepsy, bipolar disorder, schizophrenia, MS. Some protocols are adapted or contraindicated depending on the condition and its level of control.

🩺
Oncological conditions

Active cancer or recent remission. Several technologies are contraindicated locally or systematically. Treating oncologist's advice is mandatory.

🌀
History of altered states of consciousness

History of dissociation, unresolved traumatic experiences, marked psychological sensitivity. The Dream Machine is contraindicated or requires prior therapeutic support. Mandatory assessment by Dr Denys Coester before any session.

General rules

Recommendations
before & after the session

BEFORE
  • Inform us of any change in medical treatment since your last assessment
  • Immediately report any new symptom (pain, dizziness, palpitations)
  • Hydrate properly (1.5 to 2 L of water in the hours before active sessions)
  • Avoid alcohol consumption in the 12 hours before a session
  • Do not fast before a physical exercise session (HIIT, EMS)
DURING
  • Immediately report any unusual sensation to your practitioner
  • Do not remove the prescribed protections (goggles, electrodes…)
  • Respect the recommended session duration · do not extend it without medical approval
  • If you feel unwell, wave your hand or say the agreed safe word to stop the session
AFTER
  • Hydrate generously after active or draining sessions
  • Mild fatigue during the first sessions is normal · it disappears within a few days
  • Report any persistent adverse effect (more than 48 hours) via our contact form
  • Avoid intense sun exposure in the 24 hours following a photobiomodulation session
Medical questions
Have a doubt about
your medical situation?

Dr Denys Coester, partner physician, answers your questions ahead of any programme. Don't take any risks · consult before you start.

Contact Dr Coester Learn more about medical supervision