Welcome to Reverse Aging. The use of the site, its content, tools, and services is subject to the following terms of use. The very use of the site constitutes full agreement to these terms.

1. Educational information, not medical advice

The site is an informational site only. The site, its team, writers, editors, and operators are not responsible, directly or indirectly, for any damage, loss, physical or mental injury, or other adverse outcome resulting from the use of the information presented on it.

The information on the site, including the biological age calculator, the biological age calculator from blood test (PhenoAge), the life expectancy calculator, the health calculators, the supplement interaction checker, the personal supplement list (My Supplements), the supplement selector, the protocol builder, the workout plan builder, the longevity nutrition tools, the biohacking tools, the aging signs center, the guides, the practical guides, the articles, and any other tool or content, does not constitute a substitute for medical advice, diagnosis, or treatment. Always consult a doctor or qualified professional before taking a supplement, changing your diet, starting physical activity, or making any decision regarding your health.

The tools on the site provide research-based general assessments and recommendations only, and are not personalized to your medical condition. The results are indicative and not a diagnosis or prediction.

The calculators and data-driven tools on the site (such as the biological age calculator from blood tests, protein calculators, calorie calculators, BMI calculator, and supplement interaction checker) perform calculations based on accepted, research-backed formulas and the data you enter. The biological age calculator from blood tests is based on the accepted PhenoAge formula (Levine 2018) and is a statistical estimate only, not a reading or diagnosis of your blood tests. If you enter incorrect data, you will get an incorrect result. Do not make medical or nutritional decisions based on a number obtained from a tool on the site; instead, consult a qualified doctor or nutritionist.

Those interested in a more accurate and personal measurement of biological age can purchase a dedicated epigenetic test kit. We have compiled such kits on the recommended devices page (including affiliate links, see the affiliate links section below). The result of such a kit is also an estimate and not a medical diagnosis.

The life expectancy calculator provides only a statistical range estimate, based on population averages by country and on the data you self-report (habits, family history, health status, and biological age if entered). It is an educational illustration and is not a prediction of your actual life expectancy, not a medical prognosis, and does not take into account personal genetics, luck, accidents, life circumstances, or future medical developments. It should not be relied upon for medical, insurance, financial, or other decisions. The "forward look" display shown in the result is an optimistic scenario based on historical trends, not a guarantee.

2. Physical activity and training, responsibility and consent to risk

The site includes information about physical activity, exercises, and training programs, including a workout plan builder. This information is educational and general only. It is not personal sports instruction, not physical therapy, and not tailored to your physical, medical condition, or fitness level, and should not be considered a substitute for guidance from a certified trainer or medical professional.

Physical activity inherently carries a risk of injury. Before starting any exercise program, especially if you have heart disease, high blood pressure, injury, pregnancy, physical limitation, or any other risk factor, it is mandatory to consult a doctor. Start gradually, maintain proper technique, and stop immediately if you feel pain, dizziness, shortness of breath, or any distress.

You perform any physical activity, exercise, or program presented on the site at your own risk and with informed consent to the associated risk. The site, its team, authors, and operators shall not be held liable, directly or indirectly, for any injury, bodily harm, property damage, or other adverse outcome resulting from performing exercises or applying the recommendations and information on the site.

3. Dietary supplements

The supplement selector, protocol builder, and articles on supplements provide general information and evidence ratings only, and are not personalized medical or nutritional advice. The tools ask about general goals (such as sleep, energy, or focus) and not about a medical condition, and their output is not a diagnosis or a prescription.

Dietary supplements are not medications, are not approved or tested by a health authority as a drug, and are not intended to diagnose, treat, cure, or prevent any disease. There may be differences in quality, dosage, and purity between manufacturers.

Supplements may cause side effects and have contraindications or interactions with prescription medications and medical conditions. Especially if you are taking medications, have a chronic illness, before surgery, pregnant, nursing, or for children, you must consult a doctor or pharmacist before taking any supplement. Some supplements are rated on the site as having weak evidence or risk, and this honest rating is part of the information, not a recommendation to take them.

The supplement interaction checker and the "My Supplements" list are based solely on known interactions, and only for supplements that exist in our database. They do not cover every possible interaction, especially with prescription medications. Supplements you add yourself that are not in the database are not checked at all, and the absence of a warning does not indicate that the combination is safe. You are solely responsible for the supplements you choose to add and take, and you should consult a pharmacist or doctor regarding combinations, dosages, and timing, especially if you are taking medications.

4. Biohacking and advanced interventions

The biohacking tools and their accompanying content include information on various methods and interventions, some of which are controversial or experimental. Some of the content describes, for informational purposes only, prescription drugs and off-label uses, injections, peptides, and other advanced interventions. This description is educational and critical only, not a protocol, not a usage instruction, and not a recommendation, encouragement, or guidance to implement, obtain, or use them.

Do not take prescription medication or controlled substances without a prescription and supervision of a licensed physician. Do not infer from the information on the site permission to purchase, import, or use such substances. Any decision on the matter must be made together with a doctor, based on your personal condition.

Implementation of any method, intervention, or substance mentioned on the site is done at your sole responsibility. The site, its team, writers, and operators shall not be held liable, directly or indirectly, for any damage, injury, or adverse outcome resulting from the use of this information.

5. User Accounts

Some services require registration. During registration, you must provide accurate details and maintain the confidentiality of your login information. You are responsible for all activity carried out in your account. We reserve the right to suspend or cancel an account that violates these terms or is misused.

For logged-in users, we retain the data you enter in tools and the supplements you add to your personal list, in order to provide personalized features (such as pre-filling fields, your personal protocol, and interaction checking). This data is linked to your account, can be updated, and deleting the account removes it. For details on how data is collected and handled, see the privacy policy.

6. Affiliate links

The site includes affiliate links, primarily to iHerb (supplements) and Amazon (devices and equipment), as well as additional affiliate programs. When you purchase a product through such a link, we may earn a commission at no extra cost to you. As Amazon Associates, we earn from qualifying purchases ("As an Amazon Associate I earn from qualifying purchases"). The recommendations on the site are based on professional-systematic judgment and honest evidence ranking, and are not influenced by the commission amount. They should not be considered medical advice or a guarantee of results.

7. Friends Invitation Program

As long as the "Refer Friends" program is active, it is subject to a separate terms and conditions document that will be published. The program rewards only bringing new registrants to the site, is not related to third-party affiliate programs, and its prizes are funded by the site. Only genuine and verified registrations are counted. Abuse, fake accounts, or spam are prohibited, and the site may disqualify a participant at its discretion.

8. Content and Intellectual Property

All content on the site is protected by copyright. Do not copy, reproduce, or distribute content without permission. Content you send or upload (such as comments, reviews, and community questions) remains your sole responsibility, and you declare that it is not offensive, misleading, or infringing on rights. You grant the site a non-exclusive license to display, edit, shorten, translate, and publish it, and the site reserves the right to refuse to publish, edit, or remove any content at its discretion. Do not include personal, identifying, or medical information in content submitted for publication.

9. Changes

The site may change the terms of use at any time at its sole discretion.

Continued use of the site after changes are made constitutes acceptance of the new terms.

10. Jurisdiction and Authority

The law governing these terms and any matter arising from them is Israeli law.

The exclusive authority to adjudicate any dispute is vested in the competent court in Tel Aviv-Jaffa.

Reverse Aging Team