STEP. 1: Mix a quarter scoop of the spoon provided with a water-based treatment in the palm of your hand and apply to the face in the morning and/or evening. Avoid contact with eyes, if contact occurs rinse thoroughly with water. Wash hands after handling.

Do not mix with formulations with a pH of 5 or lower. If irritation occurs, rinse off, cease use, and consult a physician. Use only as directed on unbroken skin. Patch testing prior to use is advised. Keep out of reach of children.

Mixing Guide: In its truest form, Niacinamide is readily water-soluble and dissolves in water-based products, such as serums and creams, with ease. The Ordinary’s 100% Niacinamide Powder can be mixed into any non-conflicting, water-based treatment, provided that the pH of the base is between 5.0 and 7.0. When it comes to the choice of a water-based base to mix with this formula, there are several options available within The Ordinary brand.

Patch tests are an easy way to help predict if you may experience a negative initial reaction to a new product. It is recommended to perform a patch test before incorporating any new product into your regimen. We have outlined a general method for conducting your own patch test below based on the type of product.

• Apply a small amount of the product onto a clean area of skin on the upper forearm.
• Keep the area dry.
• If the product has a specified duration of use, rinse off after this time has elapsed. Otherwise rinse off after 24 hours.
• If any redness, burning, itching, blistering or irritation is observed at any time throughout the test, do not use the product.

For more product specific information, review our Patch Testing Guide.