I am a 19 year old South Asian male that has been using this product fairly consistently for the past 2 and 1/2 years (the price being the obvious barrier to continuous usage). The results have been great, noticeable not only by me but friends too. I have not only received comments on how much brighter skin is but also how much 'younger' I look - being 19, that was odd yet flattering still. Brightening products often brighten your skin, that is make you lighter, but that 'lighter' complexion tends to be incredibly dull. The 'brightened' effect I got from this had a very much yellowy tint, giving a very much tanned in Spain impression. You should start to notice its effects after one bottle's consistent usage (I applied every night - which lasted me 4/5 weeks). Do not expect results before that but if you do not see results after one bottle's use, I do not think the product is for you. I say that because while it has been a miracle for me, 2 of my friends who I recommended the product to did not notice any difference. So it really is dependent on your skin type and tone. My tips for usage would be to be economical with its usage. I used a max. of 2 full pumps a night and I dampened my face very slightly before applying to maximise spread. The product itself is very sticky and tends to stick on your hands after applying - instead of washing it off completely, dampen your hands and spread it across the back of your hands - brighter hands wouldn't go amiss.