The Ordinary Vitamin C Suspension 23% + HA Spheres 2% is a powerful 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 unique water-free formulation that helps maintain the stability of the vitamin C. The slightly granular texture is due to the vitamin C powder suspended in an oil-like base and requires a few moments to fully absorb into the skin. Users may experience a mild tingling sensation upon application, which is normal. For those new to vitamin C, the formula can be diluted with a cream to build tolerance. Not recommended for use with Niacinamide, Direct Acids, Peptides, or Retinoids in the same regimen. A patch test is recommended before first use.