Note: Please take care when using this product and gua sha massage. We cannot be held responsible for any injuries arising from improper use. This information is not a substitute for medical advice or treatment for specific medical or skincare conditions. If you are under the age of 16 or over the age of 60*, feel weak, are on medication or have had surgery in the last year, we do not recommend using the Hayo'u Method rituals or products until you have consulted with a medical practitioner. At no point should treatment feel painful. Should you experience any pain during the use of any of our products, you should cease use immediately. Do not gua sha over broken skin, broken veins or thread veins, moles, cuts or bruises. Individual results may vary depending on age, skin type and medical history. *Please see FAQs for more information.