Boots Vitamin C ADVANCED Brightening & Smoothing Intensive Serum 30 ml We’ve lovingly formulated Boots vitamin C ADVANCED brightening & smoothing intensive serum with +25% more concentrated vitamin C^ and Advanced Bright complex**. This serum penetrates to nourish deeply* for plumped, supple, and evenly-toned skin. Skin looks noticeably brighter and smoother***. Paraben-free. We’ve tested this and it’s suitable for all skin types.