Terms of service
Last updated: 29 September 2026
1. Who we are
Human Dynamix is a sole proprietorship (eenmanszaak) owned by Sam Sankarey, established at Tollenskade 23, 2274 LT Voorburg, the Netherlands. Chamber of Commerce (KvK) number 84680849, VAT number NL003999650B20. Email: support@humandynamix.run. In these terms we refer to ourselves as "HDX", "we" or "us".
2. When these terms apply
These terms apply to every visit to our website and every order with HDX: physical products, digital programs and coaching. Our Shipping Policy, Refund Policy and Privacy Policy form part of them. For an order, the terms as published on the website at that moment apply.
3. Offer and prices
All prices are in euros (or in the currency shown at checkout) and include VAT. Shipping is free. You only pay for an extra such as shipping insurance if you chose it yourself.
We do our best to show everything on the website accurately. Colours may look slightly different on different screens. If a price or description contains an obvious error that you could reasonably have recognised, we are not bound by it. We will let you know and refund anything you have already paid.
4. Your order
The contract is concluded once you have completed and paid for your order. You receive a confirmation by email. With good reason, such as suspected fraud, we may refuse or cancel an order. We will then let you know as soon as possible and refund you in full.
To order, you must be 18 or older, or have permission from a parent or guardian.
5. Payment
You pay at checkout using one of the payment methods offered. Payments are processed securely by our payment providers. We do not see or store full card details.
6. Delivery
We deliver as described in our Shipping Policy, within 30 days at the latest. Until your order has been delivered to you, it is at our risk.
7. Trial period, right of withdrawal and returns
On physical products we offer a 30-day trial with a money-back guarantee. In addition, you have your statutory 14-day right of withdrawal, including for digital programs and coaching. Our Refund Policy explains how this works.
8. Digital programs
When you buy a program, you receive a personal, non-exclusive right to use it for your own training. You may:
- download, save and print the files for yourself;
- forward a program once, as a gift, to one person. That right then passes to that person.
You may not share a program publicly, upload it online, resell it, modify it or use it to train or treat others. All rights to the programs remain with HDX.
9. Coaching
9.1 For a coaching program, HDX is your contracting party. The program is delivered by an independent coach engaged by HDX.
9.2 What exactly you get (duration, frequency of calls and price) is agreed in the free introductory call. You then receive a payment link from HDX. The contract is concluded once you have paid it.
9.3 A package is paid in advance. A subscription is charged monthly in advance to the payment method used for your first payment.
9.4 You have a 14-day cooling-off period. If you want your program to start within those 14 days, we will ask you to request this explicitly. If you then still withdraw, you pay a proportionate amount for what has already been provided. For an included HDX kit, our Refund Policy applies.
9.5 You can cancel a subscription at any time by email. It ends at the end of the month you have already paid for. A package ends automatically after the agreed duration. Stopping early is possible for a serious reason, such as a medical reason. We then refund the unused part proportionately.
9.6 If you cannot attend a call, reschedule it at least 24 hours in advance. If you cancel later or do not show up, the call is forfeited.
9.7 The coach delivers the program carefully and to the best of their ability. We cannot guarantee a specific result, as this also depends on your body, your effort and your circumstances. If your coach cannot complete the program, we will arrange an equivalent replacement in consultation with you, or refund the unused part.
9.8 For coaching we need information about your health. We only process it with your explicit consent and only share it with your coach. See our Privacy Policy.
10. Warranty
Our products meet what you may expect based on their description. On sleeves we also give a 1-year warranty against manufacturing defects. The conditions are in our Refund Policy. This warranty does not limit your statutory rights.
11. Health: no medical advice, your own responsibility
11.1 Our products are sports and comfort products, not medical devices. They are not intended to diagnose, treat, cure or prevent any disease, condition or injury.
11.2 Our programs, content and coaching are education and guidance on training and movement, not medical advice, diagnosis or treatment. They do not replace a doctor or physiotherapist. This also applies if a program or coaching is created or given by someone with a medical or paramedical background.
11.3 We do not promise results. How your body responds differs from person to person. Experiences, reviews and figures on our website and in our ads describe other people's experiences. They are not promises and not medical claims.
11.4 Talk to your doctor or physiotherapist first before using our products or starting a program or coaching if you:
- have pain, swelling, an injury or a complaint of unknown cause;
- have recently had surgery or are pregnant;
- have a heart or vascular condition, circulation problems, thrombosis (now or in the past) or diabetes;
- have reduced sensation in your legs, open wounds or a skin condition where the sleeve sits;
- have not exercised for a long time or are unsure whether training is safe for you.
11.5 Use our products according to the instructions and the size chart. Take a sleeve off immediately if you feel pain, tingling, numbness, or notice skin discoloration or irritation. Stop an exercise if you feel sharp pain. If symptoms persist or get worse, see a doctor.
11.6 You train and exercise at your own responsibility. Sport always carries a risk of injury. You decide how hard you train and you listen to your body. In coaching, you provide honest and complete information about your health.
12. Liability
12.1 HDX is not liable for any damage, including health complaints or injury, resulting from:
- use of our products or programs that does not follow the instructions, the size chart or section 11;
- ignoring the advice to consult a doctor or physiotherapist first, or continuing despite symptoms;
- incorrect or incomplete information you gave us or your coach;
- your own choices about your training and load;
- the natural course of an existing complaint or injury, or the risks inherent to sport.
12.2 Otherwise, our liability is limited to direct damage, up to the amount you paid for the product or service concerned. We are not liable for indirect damage, such as loss of income or a missed race.
12.3 These limitations do not apply if the damage is caused by intent or gross negligence of HDX or our coach. Nor do they affect your mandatory rights as a consumer, such as your rights if a defective product causes injury (product liability).
13. Intellectual property
All texts, images, videos, programs, logos and other content on our website and in our products belong to HDX or our licensors. You may not copy, distribute or use them commercially without our written permission.
14. Reviews and submissions
If you post a review, photo or video, it must be honest and about your own experience. You give HDX permission to show it on our website and in our communications, with your first name and the first letter of your last name. You can withdraw this permission at any time. We may refuse or remove reviews that break the law or these terms.
15. Complaints
If you have a complaint, email support@humandynamix.run. We respond in substance within 14 days. If we cannot resolve it together, you can take your dispute to the competent court. We are not obliged and not willing to take part in dispute resolution before a consumer arbitration board.
16. Privacy
How we handle your personal data is explained in our Privacy Policy.
17. Governing law
These terms are governed by Dutch law. If you live in another country, you keep the protection your own country's consumer law gives you, and you can also bring a dispute before the courts of your own country.
18. Changes
We may change these terms. The new version applies to orders you place afterwards. For an order you have already placed, the terms that applied at that time remain in force.