Sodium PCA (Pyrrolidone Carboxylic Acid) from Bio Shop™ is a natural humectant that helps to attract moisture to the skin, keeping it hydrated and soft. It’s a naturally occurring component of the skin’s moisture barrier and is known for its excellent water-binding properties. Sodium PCA is ideal for dry, dehydrated skin, as it helps maintain moisture balance and improve skin elasticity. It also enhances the texture and feel of formulations like lotions, creams, and serums. Use at 1%–5% in your skincare products to boost hydration and improve skin suppleness.