The Ordinary Vitamin C Suspension 23% + HA Spheres 2% is a potent skincare treatment that combines pure L-Ascorbic Acid with Hyaluronic Acid spheres in a water-free, silicone-free formula. This stable suspension helps brighten skin tone, reduce signs of aging, and provide hydration. This product features a water-free formula that ensures the stability of the 23% pure L-Ascorbic Acid (Vitamin C). The slightly granular texture is normal due to the vitamin C powder suspension in an oil-like base. Users may experience a mild tingling sensation upon application, which is expected. For those new to vitamin C, the formula can be diluted with a cream to build tolerance. The product should not be used simultaneously with Niacinamide, Direct Acids, Peptides, or Retinoids. A patch test is recommended before first use. Apply a small amount to the face in the AM or PM.