How and why you should consider performing a skin allergy test for nat – Sumilayi USA

How and why you should consider performing a skin allergy test for naturally derived ingredients.

Patch-testing our products: How and why you should consider performing a skin allergy test for naturally derived ingredients.

While we are committed to providing high quality, alcohol-free, silicone-free, cruelty-free, vegan products for curly hair, we also want to ensure that our products are safe for you to use. Like food allergies, some hair products with plant-based ingredients which work well for most people may unfortunately cause a reaction in others. This is why we highly recommend performing a skin patch test, especially if you have a history of skin sensitivity and irritation.  


A patch test is a non-invasive test that can be done at home to help rule out any product or ingredient that could cause skin irritation or an allergic reaction. This is usually performed with new cosmetics, skincare products, hair care products, or anything that is applied directly onto the skin. For hair care products, it is important to perform a patch test to help prevent scalp irritation or an allergic reaction around the face and neck.


Here’s how to perform an at-home patch test with any of our products:


  1. Apply a small amount of product on a part of the body that can be easily covered up. For hair care products, we recommend applying a sample on the back of the neck behind your ear. Be sure to clean the area first before applying the product, and if you’re planning on performing a patch test after a hot shower, wait for at least 15 minutes to let the skin cool down. Do not apply any products that may contain herbal oil on the intended area to avoid any cross-ingredient irritation.


  1. Once the product has been applied, use a band-aid to cover up the area to protect it from smudging and wearing away. Leave the patch test for at least 24-48 hours. Please note: If you feel a stinging sensation or discomfort at any time during the patch test, remove the product from your skin right away. If you find yourself short of breath or experience respiratory issues, please seek medical help immediately.  


  1. After about 24 hours, remove the band-aid and wash the product off your skin. Check the area of your skin for any signs of irritation like redness or an uneven texture (such as bumps or excessive dryness). If the skin appears to look and feel unaffected, then the product should be safe to use. If you wish to perform a prolonged skin patch test to rule out the potential of a delayed reaction, you can repeat the process every couple of days. A prolonged patch test shouldn’t need to last any longer than five to seven days.


Although hair care products with naturally derived ingredients are generally more suitable and recommended for sensitive skin, it is still important to do a skin patch test if you want to be sure to avoid a harmful reaction. If you have any other questions about our products or want to learn more about the ingredients we use, please click here.