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THYREN, the SUPLEMINT expert
THYREN is SUPLEMINT's scientific artificial intelligence. It answers all your questions: Packs, formulations, dosage, compatibilities, personalized recommendations and after-sales service information.
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Contact customer serviceAbout Suplemint
Is Suplemint a Belgian company?
Yes. Suplemint® is a 100% Belgian company, founded in 2021 by Adrien and Maïté Chassaing. Our offices are at 431H Chaussée de Louvain, 1380 Lasne (1st floor), in the heart of Walloon Brabant. Our registered office is at 64 Chemin de Bas Ransbeck, also in Lasne.
All management, design, packaging and logistics of our products are handled from Belgium to ensure impeccable quality and full transparency.
Our ambition: to develop effective, safe and scientifically based supplements, with particular expertise in the thyroid, hormonal balance and functional micronutrition.
Suplemint® also has branches in Luxembourg and France to support our international growth.
How to contact us?
Our team is at your disposal for any questions: regarding your orders, our products, the THYROID® Pack, or for any other personalised advice.
You can reach us:
- By email: info@suplemint.com
- Via our form: www.suplemint.com/pages/contact
- By phone: +32 2 884 56 99
(Monday to Friday, 9:00–19:00) - Via the AI THYREN, which has our entire database updated weekly to guide you instantly
We always do our best to respond promptly, with kindness and clarity.
Our products & Packs
What types of packs do you offer?
We develop natural, targeted micronutrient supplementation packs, designed to meet specific everyday needs: thyroid, energy, sleep, immunity, fertility, digestion, menopause, and many others.
Our formulas:
- are crafted from natural ingredients that are rigorously selected,
- use active ingredients that are highly bioavailable,
- are developed in collaboration with doctors, pharmacists and experts in functional medicine,
- are fully designed and developed in Belgium.
Our flagship expertise today is the THYROID 2.0® Pack, a comprehensive and innovative approach to support: the thyroid, the adrenals, energy, metabolism and overall hormonal balance.
All our packs are available:
- individually (1 month),
- as multi-month packs,
- or via a flexible subscription.
Discover all our packs here:
www.suplemint.com/collections/trouvezvotrecure
Do you also sell the supplements separately?
Yes. In addition to our complete packs, we offer certain individual supplements, derived from the most effective formulas, for example:
- Melatop
- CoQ10
- Omega 3
- Magnesium+
- Vitamin C
- Multivit
These supplements can be ordered:
- per month,
- over several months at once,
- or via a monthly subscription.
Discover all our formulas at:
https://www.suplemint.com/collections/trouvezvotrecure
How long should I take my Pack before noticing results?
This depends on your starting situation, your needs and your consistency. In general:
From 1 to 2 weeks
Some effects may already be noticeable, notably on:
- energy
- sleep
- digestive / intestinal comfort
- certain functions related to the thyroid
After 1 month
One month allows you to try the product and observe the first benefits.
However, this period is often a little short to give the body time to act deeply.
The body needs time to:
- correct any deficiencies
- rebalance the hormonal systems
- stabilise the effects over time
Regularity is far more important than a one-off use.
From 3 months (minimum recommendation)
For a more complete and effective action, our experts recommend a Pack of at least 3 months.
6 months or more for lasting results
For an optimal and lasting result, particularly for the thyroid and hormonal balance, a period of 6 months or more is often advised.
In general
We recommend continuing the Pack as long as it suits you and you feel the need.
Are our products compatible with medical treatment?
The answer is: yes and no.
It depends entirely on the type of medical treatment you are following and the SUPLEMINT® Pack you wish to take.
Compatibility cases
Example: THYROID® Pack
It can be taken in conjunction with medical treatment for hypothyroidism. Many customers have used it successfully for more than 3 years, alongside their treatment.
This concomitant use has been validated and justified by our in-house doctors.
Contraindication cases
Example: WEIGHT® Pack
It is contraindicated if you are taking vitamin K antagonist anticoagulants (coumarin anticoagulants).
Because of the effect of omega-3 on blood fluidity, the combination is not recommended.
Legal information and important recommendations
- Always check the contraindications specific to each pack
- They are clearly indicated on each product page, in the 'Contraindications' section, located above the 'Add to cart' button.
- If in doubt, seek the opinion of a healthcare professional
- If you are on a medical treatment or have specific health circumstances, it is essential to discuss them with a healthcare professional who knows your medical record.
Our commitment
Safety and transparency are at the heart of our approach. Our teams are also available to guide you and answer your questions.
If you want, I can also:
- shorten the answer
- adapt it to a more medical tone
- or rephrase it in an ultra-cautious / regulatory version
May I take your packs if I am pregnant, breastfeeding, or for my children?
Pregnant women
During pregnancy, only one Pack is permitted :
- CONCEPTION® Pack : it may be taken during pregnancy, but must be stopped before the 7th month. This precaution is due to the presence of omega-3 fatty acids, which help to thin the blood, an important factor to consider for childbirth.
- All other Packs are contraindicated during pregnancy.
Breastfeeding women
During breastfeeding, only one Pack is recommended :
- BREASTFEEDING® Pack : it has been specifically formulated for this delicate period. As the newborn's microbial flora is still very fragile, it is essential to strictly follow the recommended daily intakes.
- All other Packs are contraindicated during breastfeeding.
Children and adolescents
- As a general rule, our Packs are not recommended for children under 12 years of age
- Use also depends on the contraindications specific to each Pack, which must be read carefully
- For safety reasons, we recommend the use of our Packs from 18 years of age
Important information
- Specific contraindications are indicated on each product page
- If in doubt (pregnancy, breastfeeding, age, medical condition, treatment), it is essential to seek advice from a healthcare professional
- Our priority: your safety and that of your child
Our recommendations are based on the precautionary principle and on the physiological specificities of each life stage.
When should I take my supplements?
This depends on the pack chosen and the type of supplements:
- Energizing supplements (energy, thyroid, metabolism…) are generally taken in the morning.
- Supplements related to sleep or relaxation are usually taken in the evening.
- Certain capsules should be taken during or at the end of a meal for better digestive tolerance.
All this information is detailed in the section "How to take the pack XXXX", with an explanatory video to guide you step by step.
You can also find the instructions:
- on the product page for your pack,
- on the back of the box,
- on each sachet,
- and on the explanatory card included in each pack (also accessible via the activation QR code).
The recommended dosages and timing are indicated to optimize the pack’s effectiveness, but every person is different.
If necessary, you can slightly adapt your doses to your daily routine.
A few simple tips:
- avoid energizing supplements in the evening (not compatible with sleep),
- avoid relaxing or sleep supplements in the morning,
- probiotics and plant complexes are often better tolerated in the evening.
No stress: the main thing is consistency. If in doubt, our team or THYREN is here to support you.
General
What if I forget to take a dose?
Don’t panic, it happens to everyone.
Never double the dose at the next scheduled time.
Simply skip the missed dose and resume your Pack at the usual time.
In micronutrition, the key principle is not daily perfection, but adherence and endurance over time. Supplements act progressively, by accumulation and regulation, not like a fast-acting medicine.
Why is regularity more important than perfection?
Many supplements require several weeks to fully express their effects, for example:
- vitamins and minerals (rebuilding stores),
- omega‑3s (integration into cell membranes),
- adaptogens (balancing stress and energy),
- probiotics (modulating the microbiota),
- active ingredients affecting the thyroid, metabolism, or low‑grade inflammation.
Forgetting a dose from time to time, or even once or twice a week, has no significant impact on the overall effectiveness of the Pack.
However, if more than 30–35% of doses are missed, the effect will logically be less optimal, because the required regularity is no longer achieved.
In summary:
- an occasional missed dose = no problem,
- an imperfect but regular intake = results,
- a Pack taken over the long term = lasting benefits.
No stress: do your best — your body works over time.
Can I take other supplements in addition to Suplemint?
In theory, yes, but it is generally not necessary.
Our Packs are already:
- high-strength,
- balanced,
- formulated to cover the needs in vitamins, minerals and targeted active ingredients without unnecessary excess.
If you take other supplements at the same time, it is important to:
- check ingredient lists to avoid duplication,
- not exceed the recommended daily doses,
- seek advice from your doctor or pharmacist if in doubt.
Supplements to watch for when combined (risk of overdose)
Here are the main nutrients that require caution:
Vitamins
- Vitamin A (retinol): 800 µg per day
- Vitamin D: 3,000 IU per day (75 µg)
- Vitamin E: 300 mg per day
- Vitamin B6: 25 mg per day
- Vitamin B9 (folic acid): 1,000 µg per day
Minerals & trace elements
- Iron: 14–20 mg per day (unless a diagnosed deficiency)
- Zinc: 25 mg per day
- Selenium: 200 µg per day
- Iodine: 150–200 µg per day
- Copper: 5 mg per day
- Magnesium (supplementation): 250–350 mg per day
Other active ingredients to watch
- Omega-3 (EPA + DHA): avoid > 3 g per day without medical advice
- Adaptogenic herbs (ashwagandha, rhodiola, ginseng…): be cautious about prolonged combined use
- Concentrated antioxidants (curcumin, resveratrol, quercetin): use caution when combined
Good news: SUPLEMINT® Packs are formulated to work together, without exceeding safety thresholds when taken alone.
In summary:
- adding other supplements is rarely useful,
- excess does not improve results,
- consistency and regularity are more effective than accumulation.
If in doubt, THYREN or our team is here to guide you, simply and without stress.
What justifies the price of your packs?
Our prices reflect several key elements:
- The quality of raw materials: high-quality active ingredients, highly bioavailable, often patented or standardized.
- The complexity of the formulas: multiple supplements carefully combined for a comprehensive effect, not a single low‑dose multivitamin.
- Expert work: all our formulas are developed in collaboration with doctors, pharmacists and specialists in functional medicine.
- Scientific monitoring: our packs are regularly updated according to the latest available scientific data.
By choosing Suplemint®, you avoid:
- buying a multitude of supplements separately,
- ending up with poorly dosed, redundant, or incompatible products,
- having to "play the chemist" without an overall perspective.
Concrete example – THYROID® Pack
To obtain a functional equivalent using supplements purchased separately, you would typically need to combine:
- Multivitamins, minerals & antioxidants: €43
- Thyroid complex: €39
- Adaptogens & anti-stress: €36
- Super mushrooms: €24
- Superfoods, greens & fruits: €45
- Immunity & anti-inflammation: €30
- Energy & dopamine booster: €25
- Memory & cognitive performance: €37
- Hair, skin & nails: €30
- CoQ10 (heart vitality): €34
Total value: €343
Value of the Suplemint® THYROID® Pack: €125
You save €218, with a coherent, optimized formula designed to work together.
Another example – WEIGHT® Pack
The same logic applies to our WEIGHT® Pack: to understand why it is more effective (and more cost-effective) than an accumulation of isolated products, we have detailed the full analysis in a dedicated article on our blog.
In summary: better synergy, fewer unnecessary products, and a better value-to-results ratio.
Are the products available everywhere?
We strictly comply with the European and local regulations applicable in each country.
This means that:
- some formulations may be temporarily withdrawn while undergoing an update, reformulation, or regulatory reapproval by the competent authorities;
- if a product is not authorized for sale in your country, it simply will not be available at checkout (no delivery option will be offered).
For each SUPLEMINT® Pack, we hold legal market authorization numbers specific to each country of sale, in accordance with the requirements of the local health authorities.
If a product no longer appears or is no longer deliverable in your country, it may therefore be undergoing validation, a regulatory update, or reformulation to ensure full compliance.
Thank you for your understanding — this rigor is part of our commitment to quality and safety.
Allergies and types of diet
Are your products free of gluten and lactose?
None of our products contain added gluten or added lactose, except for the SKIN® Pack, whose SKIN ACTIV capsule may contain them.
However, our supplements are manufactured in facilities that process multiple products and that also handle ingredients which may contain:
- wheat
- soy
- lactose
- corn
- egg
- fish
- shellfish
- tree nuts
- peanuts
- gluten
Therefore cross-contamination can never be ruled out 100%.
If you have a severe allergy or a known hypersensitivity, we recommend that you:
- consult your doctor before taking any,
- carefully check the ingredient list of each Pack.
Fish allergen & marine derivatives
Some packs contain ingredients from fish or marine derivatives (Omega-3, krill, etc.):
- ENERGY® Pack: Omega-3 (fish oil)
- WEIGHT® Pack: Omega-3 (fish oil)
- IMMUNITY® Pack: Omega-3 (fish oil)
- SENIOR® Pack: Omega-3 (fish oil)
- MEMORY® Pack: Krill (lipid extract from crustaceans) + Omega-3 (fish oil)
- MAN+® Pack: Omega-3 (fish oil)
- CARDIO® Pack: Omega-3 (fish oil)
No other pack contains marine ingredients.
If you are allergic to fish or crustaceans, medical advice is essential before any use.
Are your products vegetarian or entirely free of animal products?
Depending on the formulations:
- some packs are vegetarian,
- others contain omega-3 fatty acids from fish oil (certified sustainable fisheries),
- currently, our packs are not 100% vegan.
The "vegetarian / non-vegetarian" information is always specified in the product description.
Quality, manufacturing & ingredients
Where and how are your products made?
Our nutritional supplements are:
- developed in a specialized environment in micronutrition and functional medicine,
- produced in collaboration with laboratories located in Luxembourg, Belgium and France,
- manufactured at certified sites (including GMP), each expert in a type of dosage form (capsules, tablets, beads, etc.).
The raw materials are:
- selected for their quality, purity and traceability,
- tested toxicologically and microbiologically in independent laboratories (e.g. Primoris, Phytocontrol).
Packaging assembly is carried out in Belgium, with particular attention to the environment and to waste reduction.
Is the packaging recyclable?
Yes.
We pay particular attention to the environmental impact of our packaging.
- Our pouches are biodegradable and industrially compostable, thanks to a thin layer of plant-based PLA.
- Our boxes are made of 100% biodegradable cardboard.
- The leaflets are printed on recyclable paper.
- The shipping cartons are made of recyclable cardboard.
- The adhesive tape used is also made of recyclable paper/cardboard.
All of our packaging is therefore recyclable, and part of it is biodegradable or industrially compostable.
We continue to improve our choice of materials to minimise our environmental impact as much as possible, without compromising the quality and safety of our products.
How do you choose your ingredients?
Two fundamental criteria guide all our choices:
effectiveness and naturalness, with no compromise.
For each formula, our teams:
- rely on the latest available scientific data,
- work closely with Dr Stéphane Résimont, co-founder of Suplemint® and a specialist in functional medicine,
- work with a multidisciplinary scientific team composed of doctors, nutritional therapists and pharmacist-biologists.
Our requirements for ingredients
We consistently prioritise:
- highly absorbable active ingredients (bioavailable and effective forms),
- traceable raw materials, with controlled and guaranteed quality,
- ingredients from sustainable farming and fair trade whenever possible.
An ethical and environmental commitment
Beyond science, our choices are also ethical and responsible:
- we endeavour to prioritise local raw materials or those from countries where working conditions are respected,
- we pay particular attention to how ingredients are transported,
- and we integrate, as much as possible, the impact of the carbon tax and the environmental footprint into our sourcing decisions.
Our objective: to offer effective, safe and coherent packs, while respecting people, the planet and science.
Who develops the products?
Our products are developed by a multidisciplinary team of 20 scientists, bringing together :
- physicians,
- nutritionists and nutritional therapists,
- pharmacist-biologists,
under the coordination of Dr Stéphane Résimont, cofounder of Suplemint® and a specialist in functional and nutritional medicine.
For each Pack, the team :
- selects the most relevant ingredients,
- determines the optimal dosages based on scientific data,
- ensures the safety, synergy and overall effectiveness of the formulation.
Our scientific advisory board
Our formulations are also accompanied and validated by an independent scientific advisory board, made up of experienced professionals :
- Maryse Briet – Doctor of Pharmacy, 20 years of experience
- Françoise Mirrande – Nutritionist specializing in the thyroid, 15 years of experience
- Valérie Wattenbergh – Nutritionist focused on functional medicine, 8 years of experience
- Sonia Vignieu – Nutritionist specializing in weight loss, 12 years of experience
- Carine Simon – Nurse specializing in addiction and stress management
This collective approach allows us to design serious, coherent and evolving Packs, grounded in science, clinical experience and a comprehensive view of health.
Payment
What forms of payment do you accept?
On our site, you can pay for your order securely using:
- Apple Pay
- Credit card
- PayPal
- Bancontact
- iDEAL
- Klarna
Other payment methods may be added in the future.
In-store payment
For purchases made in-store, we also accept:
- payment by card terminal,
- payment in cash (cash).
All payments are processed via secure solutions that comply with current standards.
How do I use my promotional code?
- Add your products to your cart.
- Proceed to the payment page.
- Enter your promotional code in the field provided before payment.
Important information on promotional codes
- Only one promotional code can be used at a time.
- If several codes are eligible, the one offering the greatest discount will be applied automatically.
- Promotional codes can be combined with our automatic discounts, such as:
–15% on subscriptions,
–10% for 2 or more products purchased,
–15% for 3 or more products purchased.
Why is my code not working?
A code may not apply if:
- it has already been used,
- it has expired,
- it does not apply to the products in your cart.
If you believe your code is valid, contact us at info@suplemint.com and we will check the situation with you. Our team is here to help you quickly and easily.
Orders & shipments
Delivery terms
We deliver throughout Europe and internationally via reliable carriers, with order tracking.
Estimated delivery times
- Benelux : 2 to 3 working days – via GLS
- France : 2 to 5 working days – via GLS
- Switzerland (DAP) : 3 to 6 working days – via Bpost (no customs duties to pay)
- Other European countries : 3 to 6 working days – via Bpost
- United States : 4 to 6 working days – via Bpost
- Other international destinations : 6 to 12 working days – via Bpost
If you are absent at the time of delivery
If the carrier attempts delivery and you are absent:
- your parcel will automatically be left at the nearest collection point
- you will be informed of the collection arrangements
You receive real-time updates on your parcel thanks to the confirmation and tracking emails we send after you place your order.
Destination not available when placing your order?
If your country does not appear during order placement, no problem
Contact us and we will unlock your destination quickly and easily.
Important information
- The times shown are in working days
- They are given for guidance and may vary in case of :
- technical problems
- shortages of raw materials
- limited stock availability - These situations may be reported before or after purchase.
How can I check the status of my order?
After placing your order:
- you will receive a confirmation email,
- then status update emails at each stage:
- package prepared,
- package dispatched,
- package out for delivery,
- package delivered.
Each email contains a tracking link or a tracking code that lets you follow your package directly on the carrier's website.
About delivery tracking
You may sometimes see:
- Shopify tracking (internal order status),
- and carrier tracking (logistics status).
These two tracking systems may not update at exactly the same time or always display the same information.
If there is a discrepancy or no update, we recommend waiting up to 24 hours for the data to synchronize.
If after this time the tracking remains stuck, our team is, of course, available to help.
My order is delayed
Carriers may sometimes experience delays beyond our control (periods of high activity, weather conditions, logistical incidents, etc.).
Here are the steps to follow:
- Check the tracking via the link received by email.
- If we become aware of an anticipated delay (holiday periods, internal carrier information…), we inform our customers in advance by email.
Also remember to check your spam / junk folders, as some notifications may end up there.
Need help?
- If the delay exceeds 5 business days, contact us at info@suplemint.com stating your order number: we will help you find a solution.
- You can also ask THYREN, our assistant, for initial information.
- Or call us directly at +32 2 884 56 99 if you prefer to speak to a person.
Our team always does its best to ensure your order arrives as quickly as possible and in the best possible condition.
Where can I find my order history?
To access the history of your orders, simply sign in to your Suplemint® customer account.
How do I do this?
- Sign in to your account using the email address you used when you made your purchase.
- You will receive a one-time sign-in code by email (no password to remember).
- Once signed in, go to the "Order history" tab.
You will then be able to view:
- the full list of your orders,
- the details of each order,
- the status of any subscriptions you may have.
If you cannot find the sign-in email, please check your spam folder.
If you have any difficulty, our team is available to help you.
Where can I get the bill for my order?
If you need an invoice (for example for business accounting), simply send us:
- your order number,
- your billing details
to info@suplemint.com.
We will send the invoice to you by e-mail.
Can I cancel my order?
Yes, as long as the parcel has not been dispatched.
- Orders placed before 11:00 are usually dispatched the same day.
- Orders placed after 11:00 are dispatched the following day.
If you wish to cancel:
Contact us as soon as possible at info@suplemint.com or directly by telephone at +32 2 884 56 99.
Once the parcel has been dispatched, it can no longer be cancelled, but you may return it to us within 14 days of receipt, in accordance with our general terms and conditions of sale.
Can I modify my order?
The order can be modified as long as the parcel has not been shipped.
If you wish:
- to add or remove a product,
- to modify a Pack,
contact us promptly via info@suplemint.com or directly by phone at +32 2 884 56 99.
We will do our utmost to adapt your order before dispatch.
I received the wrong item or a damaged one.
We are sorry for this inconvenience.
Despite all our precautions (manufactured and prepared with a degree of craft and human involvement), an error can sometimes occur.
Contact us at info@suplemint.com or directly by phone at +32 2 884 56 99 with :
- your order number,
- a photo of the product received and/or damaged.
We will find a solution with you (replacement, reshipment, etc.).
Can I change the delivery address for my order?
Yes, but only before the parcel is sent.
If you realise there is an address error, contact us as soon as possible at info@suplemint.com or directly by phone at +32 2 884 56 99.
Once the parcel has been sent, we can no longer change the address, but we can check whether a solution is possible with the delivery company.
Can I exchange my order for another Pack?
Yes, an exchange is possible under the following conditions :
- you return the parcel to us within 14 days,
- the products are unopened and in their original packaging,
- return costs are at your expense.
Contact us at info@suplemint.com or by phone at +32 2 884 56 99 to arrange the exchange and find out how to proceed.
The thyroid is the Conductor of your body
L’essentiel
Pack INTESTIN®
Optimizes your digestion and eases your intestinal transit.
ENERGY® Pack
Boost your energy and reduce your fatigue throughout the day
WEIGHT® Pack
Helps you lose weight naturally and effectively
SLEEP® Pack
Helps you fall asleep more easily and sleep more deeply
MENOPAUSE® Pack
A synergistic blend of natural supplements to support women through menopause.
Pack ARTICULATION®
Helps fight inflammation and lubricate the joints
BIO ACTIV® Pack
Specialized probiotic to strengthen your immune system
Capsule BERBERINE ACTIV®
Helps regulate blood sugar and promotes better digestion.
MELATOP® Pack
Optimize your sleep and how quickly you fall asleep.
ALLAITEMENT® Pack
Participates in enriching breast milk and helps reduce fatigue in breastfeeding mothers
ANTIOXYDANT® Pack
To protect your body against oxidative stress, responsible for aging
CARDIO® Pack
Supports your heart function during physical exertion
Pack REBOOST®
Boost your digestion and restore smooth, regular transit
LIGHTNESS® Pack
Improve your digestion and support smooth bowel movements
VITALITY® Pack
Boost your digestion and regain smooth intestinal transit
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Made in Belgium
Originally from Lasne
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An innovative laboratory
Pioneer of thyroid balance
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Family business
Adrien & Maïté Chassaing
