This is a product that I know I'll be buying forever. Yes it's expensive but a little goes a long way. I have very sensitive skin and most anti-ageing products cause a bad reaction on my skin, even the most expensive ones. One pump of this serum covers your whole face and honestly I noticed an improvement straight away. My skin is softer, smoother and brighter and it's not gone unnoticed by my friends. The only downside to this product is possibly the fragrance, which is a tad strong. Personally I quite like it and don't notice it after I have applied it but my boyfriend has commented on it when I apply at night. Overall this is a fabulous serum, well worth buying.