Boots Vitamin C ADVANCED Brightening & Smoothing Water Essence 100 ml We’ve lovingly formulated Boots vitamin C ADVANCED brightening & smoothing Water Essence with +25% more concentrated vitamin c^ and Advanced Brightening complex** . This water essence rehydrates skin deeply* and primes skin for better absorption of subsequent treatment for dewy and bouncy skin. Skin looks noticeably brighter and smoother***. Paraben-free. We’ve tested this and it’s suitable for all skin types.