Unfortunately, no change at all. Whether I used it or not, the result was the same. Not even in the color of the spots.

Unfortunately, it has no effect at all. Not that I have found any other product that removes dark spots, I have just tried so many and this was my last hope. I would not recommend it, there is absolutely no difference.

Its texture is pleasant and it absorbs relatively well, but I did not see the improvement I expected in my dark spots or my skin tone after considerable use. I expected more noticeable results, especially given the product's reputation.

I have been using it for a year every night in combination with the soap and the cream and my dark spots have disappeared. It takes time to see results.

I am in the third week of using it. I have post-inflammatory hyperpigmentation. In the morning, I cleanse, use mela b3 and sunscreen 50+ anti dark spots by La Roche Posay. At night, I cleanse again, use mela b3 and Korres moisturizer. Once a week, I exfoliate at night with a product without grains and then only use moisturizer. I think this routine has started to work. It's like the spots have faded. However, it takes time and consistency, and without SPF 50 sunscreen, all the work of the serum is definitely canceled out. So I will wait a bit longer and come back with a review. My spots were caused by tweezing my eyebrows, the skin got irritated, was exposed to the sun, melanin was produced, and I ended up with brown spots.

Day and night compared to the old niacinamide, which I never understood why they discontinued. Such a shame... I was a big fan of the old one. I bought the new one once and that's it. Not only does it have no effect, but it also irritates my face.
If La Roche Posay wants the product to do well, they should bring back the old one. Because as you can see from the comments, this one won't get anywhere.
Its rating has dropped a lot since they changed it..

I have been using this product for over two months (together with the mela b3 cream which is also a sunscreen) and not only did I not see a difference in my spots, both products irritate my eyes. The texture is nice, but unfortunately I can’t use it in these conditions. Will not buy it again.

I have sensitive skin but this product went beyond a simple reaction, causing severe redness and a burning sensation that took a long time to subside despite the minimal test amount I applied. I don't know about the results as I refuse to put it on my face again.

Not only did it do nothing, but it also caused me an issue with my eyes and I had to use antibiotics to recover..

No relation to the original Pure Niacinamide 10 Serum! Please! Bring back the original!! This one does nothing for 2 months now!!!

The original serum, Pure niacinamide, which they discontinued to replace with the melaB, was excellent. Unfortunately, this one does not work for me like the previous one, where in 3 months all the brown spots on my face had disappeared. I bought the new series, which has a different texture and composition, it is more watery, fluid, and as a result, the spots reappeared.

It is easily absorbed, pleasant texture but that's all. I have melasma on my forehead, severe, and I saw absolutely no difference, and I have been using it for several weeks morning and night, the bottle is almost finished. It was not worth the money, I definitely won't buy it again and I do not recommend it.

I have reached half the bottle... I haven't seen any improvement in the marks I have on my cheeks... consistently... it contains good niacinamide... overall I think it's overrated

I bought it because during pregnancy I got dark spots on my face, after intensive use for 6 months I have to tell you that it does absolutely nothing. It leaves a light feeling and is pleasant to use, but the dark spots did not go away, nor did their color soften. I would not buy it again.

I have used all the serums from La Roche Posay without any side effects, with a face that almost never gets irritated. Unfortunately, this particular product caused me slight redness, so I stopped using it. At first, I assumed it was unrelated to the use of the product, but I noticed that when I stopped and just applied my night cream, my face was fine as before. Unfortunately, disappointment.

I've been using it for 3.5 months.... Unfortunately, I haven't seen the slightest difference in the spots on my face and décolleté. Waste of money.....

it generally helps with the appearance of the skin, with pimples, glow, it also works on spots at a slow pace,

I used it for 3 months, I have finished 2 bottles. The positives are that you really see results very quickly on the dark spots (I had intense ones); it lightens them, but they don't disappear. The negatives are that a week after I stopped, the dark spots are back to where they were before I started. So the conclusion is that as long as you use it, it's good; if you stop, you will see them all back in front of you

My dermatologist recommended it for the spots, and all it did was give me redness and an eczema on my nose that won't go away! It's not even moisturizing, it offers nothing

It is very moisturizing and quite thick. The face glows afterwards, but on oily skin, it might feel a bit heavy

I have been using it for 2 weeks, and I admit that I see results. I am very satisfied. Obviously, I will buy it again.

Very good product, but it requires patience to see results. Having coffee stains from acne and severe scarring, they have gradually started to fade... I recommend it!

I bought it after a sample that my dermatologist gave me, which significantly improved both the texture and appearance of my face in just a few applications! I was so impressed that I ordered it immediately, but unfortunately I hadn't noticed that there are two La Roche Posay niacinamide serums and I ordered the wrong product! The sample was the pure niacinamide 10 serum, which rightly has such good reviews, not the Mela B3. One of its biggest negatives is that it doesn't absorb easily and leaves a shine on the face afterwards, making it inconvenient especially if you want to combine it with other serums. I use it with hyaluronic acid and retinol, but now only at night and in a small amount. There is definitely an improvement in my face after a month of using it, but I believe it has to do with other factors as well and not just this specific product. I will not choose it again, my next purchase will definitely be the pure niacinamide 10 serum.

I have spent a small fortune on creams etc, this is one of the best products. I will buy it again as soon as it finishes - along with the cream with SPF 30 protection (which for those who know, doesn't have much difference with laboratory chemicals SPF 50). La Roche-Posay. Guarantee.