NOTHING is a 'quick fix'. You need to use a product for at least 30 days to achieve full benefits. Similar to a diet, you have to stick with it and not stray. My eyes became very dark while I was in school to become a skin therapist due to stress, lack of sleep, relationships, etc. and I picked this product up then. It helped with luminosity and decreased the darkness/puffiness. I've used it on clients since graduating and the biggest complaint I've received is that it causes eye sensitivity and sometimes some tingling. I put the product on my finger to apply it so I know this is not a cross-contamination issue. I also felt the tingling myself when I started using the product; however, it seemed to dissipate over time. I also didn't mind it.