La Roche Posay Mela B3 Dark Spot Serum with Melasyl and 10% Niacinamide - 1 fl oz
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Guests are saying
This serum has garnered attention for its effectiveness in reducing dark spots and evening skin tone. Many guests report visible improvements in their skin's appearance after consistent use, particularly for melasma and hyperpigmentation. The lightweight texture and pleasant scent enhance the application experience, making it a favorite among those seeking a reliable skincare solution. While results may vary, patience and regular use seem to be key for optimal outcomes.
Summary created by AI from text of reviews reflecting recent feedback provided across different star ratings (includes incentivized reviews)
4.3 out of 5 stars with 1794 reviews
effectiveness: 3.1 out of 5
quality: 3.38 out of 5
value: 3.05 out of 5
48% would recommend
45 recommendations
5 out of 5 stars
18 March, 2026
originally posted on laroche-posay.us
Wow! You have to try this
I was skeptical at first but I wanted to try it. Based on the reviews I saw. I’m so glad I did. I have only been using this for two weeks but wow I can see a difference already. I had a dark spot on my left cheek with red around it that look liked sunburn but it wasn’t. Not only do I see a difference in the spot but the red is just about gone too. So glad I bought this!
1 out of 5 stars
12 March, 2026
originally posted on laroche-posay.us
not worth the cost of productt
after using one bottle, I saw no improvements. not happy with results.
1 reply from Consumer Care Center team - 13 days ago
Hello mammadoe72! Thank you for sharing your honest feedback regarding our Mela B3 Dark Spot Serum. We are sorry to hear that you have not yet seen the improvements you were hoping for after completing your first bottle. Addressing long-standing dark spots is a gradual process that typically requires consistent, twice-daily application over several months to see visible changes in skin tone. To ensure the Melasyl™ and Niacinamide can work effectively, we highly recommend pairing the serum with a broad-spectrum SPF 30 or higher every single morning, as even minimal sunlight can trigger new pigment and slow down the fading of existing spots. We appreciate your patience and your feedback as we strive to provide effective solutions for all skin concerns.
1 out of 5 stars
12 March, 2026
originally posted on laroche-posay.us
Poor - disappointing
I am very disappointed in this product. It lightens not only the dark spots, but all the surrounding skin, so that the dark spot appears to have a white halo.
1 reply from Consumer Care Center team - 9 days ago
Hello rsarra55! Thank you for sharing your honest feedback on our Mela B3 Dark Spot Serum. We are sorry to hear that you have experienced this "halo" effect on your skin, as our Melasyl™ and Niacinamide formula is specifically designed to target and balance the overproduction of pigment for a more even complexion. Because this serum is highly effective at evening out overall skin tone, we recommend applying it only to the specific areas you wish to treat rather than all over your face, which can help concentrate the brightening effects on your dark spots. To achieve the best results with this targeted approach, we suggest pairing your serum with a daily broad-spectrum SPF 30 or higher to protect your skin from the UV rays that can further stimulate pigment production. We truly appreciate your feedback and your trust in our targeted skincare solutions.
1 out of 5 stars
9 March, 2026
originally posted on laroche-posay.us
Brown spot
My brown spot has not faded since I've been using this product
1 reply from Consumer Care Center team - 13 days ago
Hello Marie c! Thank you for sharing your feedback regarding our Mela B3 Dark Spot Serum. We appreciate your honesty as we aim to provide effective solutions for skin discoloration. Addressing dark spots is a gradual process that requires consistent, twice-daily application, as visible improvements in skin tone typically become more apparent over several weeks of regular use. To support the efficacy of the Melasyl™ and Niacinamide in our formula, it is essential to apply a high-SPF broad-spectrum sunscreen every morning, as even minimal UV exposure can stimulate pigment production and slow down the fading process. We suggest continuing with your routine and ensuring your skin is always protected from the sun to allow the serum the best opportunity to work on your specific concerns.
5 out of 5 stars
9 March, 2026
originally posted on laroche-posay.us
Save my face
I had and am having great results and I share with my sister in law, she also got very good results
5 out of 5 stars
3 March, 2026
originally posted on laroche-posay.us
Like
I really love this serum. It makes my skin feel very soft, and I’ve noticed that some of the spots on my face have faded since I started using it. I usually apply it before going to bed, and the next day my skin doesn’t feel oily at all.
5 out of 5 stars
25 February, 2026
originally posted on laroche-posay.us
Fades Dark Spots
I try lots of different skin care products to address different concerns. The Mela B3 does a nice job reducing discoloration from sun damage.
5 out of 5 stars
Thumbs up graphic, would recommend
24 February, 2026Verified purchase
Dark spot serum
After using this product twice a day for about 6 weeks I am noticing that my age spots are less visible
5 out of 5 stars
23 February, 2026
originally posted on laroche-posay.us
Such a difference
I have been using this product for a month now and WOW! The difference is amazing! I bought the cleaner as well and together it is a powerhouse for my stubborn dark spots. I am currently using a different brand moisturzer and sunscreen, but when I am complete I may switch over but for the price of the Mela moistuixer, I may just keep my regualrs in rotation.
1 out of 5 stars
23 February, 2026
originally posted on laroche-posay.us
Not working
I Haven’t notice any difference at all on my spots, been using it for over 3 weeks
1 reply from Consumer Care Center team - 1 month ago
Hello Nichi! We appreciate the interest in our Mela B3 Dark Spot Serum and understand the desire for visible results after three weeks of consistent use. This formula is specifically developed with Melasyl™ and Niacinamide to target dark spots and help even out the appearance of hyperpigmentation over time, which often requires at least four to six weeks for the skin cells to complete a full renewal cycle. A helpful tip to achieve the best results is to apply the serum twice a day to clean, dry skin and always follow with a broad-spectrum sunscreen of SPF 30 or higher during the day, as sun exposure can further darken existing spots and counteract the brightening benefits. Consistent use is key for achieving the most luminous and healthy-looking complexion possible. Your patience is invaluable as the formula works to support your skin's health.
4 out of 5 stars
18 February, 2026
originally posted on laroche-posay.us
It is working
After almost 4 weeks of 2x a day use I am seeing significant fading of dark spots 😀👏
5 out of 5 stars
17 February, 2026
originally posted on laroche-posay.us
Worth it
It good but does take along time but I think it will work
2 out of 5 stars
16 February, 2026
originally posted on laroche-posay.us
Not working
I’ve been using for approximately eight weeks now it showed no difference in dark spots on my face or my hands. Will keep using until the bottle runs out, but as of right now, I don’t recommend it.
1 reply from Consumer Care Center team - 1 month ago
Hi Misty84! We appreciate your feedback on Mela B3 Dark Spot Serum With Melasyl™ + Niacinamide. Mela B3 Dark Spot Serum With Melasyl™ + Niacinamide sorry to hear the product hasn't delivered the results you were hoping for after a month of use. Individual results can vary, and we understand your disappointment. We encourage you to explore our other products that may be better suited to your skincare needs, or consult with a dermatologist for personalized recommendations.
3 out of 5 stars
14 February, 2026
originally posted on laroche-posay.us
Too much FRAGRANCE!
Fragrance is a known irritant for many people with sensitive or acne-prone skin. Adding perfume to corrective skincare feels like a marketing habit from the 1900s — today’s formulations should focus on performance, not scent.
1 reply from Consumer Care Center team - 1 month ago
Hi Chaitea.. Thank you for sharing your feedback regarding Mela B3 Dark Spot Serum With Melasyl™ + Niacinamide. We can assure you that our products go through extensive testing to provide the best and safest possible products for our consumers. The ingredients we use are selected because of their record of safety for use by the consumer. We continually evaluate the most current information about our ingredients. Each and every ingredient used in our products has been thoroughly reviewed and tested by our internal safety team made up of toxicologists, clinicians, pharmacists and physicians. Please visit the following link for more information: https://inside-our-products.loreal.com/active-ingredients/
2 out of 5 stars
13 February, 2026
originally posted on laroche-posay.us
Bad Reaction
I used this serum for a few days, applying it once at night. My skin became red, itchy, and super dry —as if I had excema. So be careful!
1 reply from Consumer Care Center team - 1 month ago
Hi Jane Siegel. We are sorry to hear about the experience you had with Mela B3 Dark Spot Serum With Melasyl™ + Niacinamide. We want to speak with you directly about it. Please give us a call at 1-800-560-1803 9:00 am - 5:00 pm ET for assistance and provide reference # 45273540.
1 out of 5 stars
13 February, 2026
originally posted on laroche-posay.us
Fragrance?
Had to return because of the fragrance/parfume contents in there. Why are we still making face products with unnecessary irritating ingredients?
1 reply from Consumer Care Center team - 2 months ago
Hello there! We appreciate you sharing your perspective regarding the inclusion of fragrance in the Mela B3 Serum, as we understand that many of our users prefer to avoid certain ingredients due to skin sensitivities. The light fragrance in this formula is added to provide a more pleasant sensorial experience during application, and it has been rigorously tested to ensure it meets our strict safety standards for sensitive skin. Our goal is to balance the high efficacy of active ingredients like Melasyl™ and Niacinamide with a texture and scent that make the daily routine enjoyable. For those who are particularly reactive to fragrance, a helpful tip is to perform a small patch test on the inner arm before applying a new product to the face to ensure complete compatibility with your skin's unique needs. We value this feedback as it helps us understand the diverse preferences of our community as we continue to develop advanced dermatological solutions.
3 out of 5 stars
12 February, 2026
originally posted on laroche-posay.us
Too early to tell
I have been using this for a month already and I do notice a better texture to my skin and softness but I have not yet seen any difference in the look of my brown areas. I had already bought the small size which is what I have used for far. It lasted me a month so I don't know if I used too much or too little using the twice daily. I have the large size now so I hope I see a better improvement.
1 reply from Consumer Care Center team - 2 months ago
Hello Arturo! Thank you for sharing your progress after the first month; we are delighted to hear that you are already noticing a softer and improved skin texture with the Mela B3 Serum. This formula, enriched with our proprietary Melasyl™ and 10% Niacinamide, is specifically designed to target persistent dark spots by refining the skin's surface and addressing uneven tone from within. Since hyperpigmentation is a gradual process, it is very common to see improvements in texture before the more stubborn brown areas begin to visibly fade, as this usually requires several weeks to align with your skin's natural renewal cycle. Using the serum twice daily is the ideal frequency, and a 30ml bottle typically lasts about a month when applying three to four drops per use. A vital tip to ensure you see the best results with your new larger bottle is to strictly apply a broad-spectrum SPF 30 or higher every morning, as even minimal sun exposure can darken existing spots and stall your progress. Consistent sun protection is the most important step in allowing the serum to effectively reveal a more even and radiant skin tone.
1 out of 5 stars
7 February, 2026
originally posted on laroche-posay.us
High hopes gone
Using 5 weeks no change in marks on my skin. So disappointed. I have the entire treatment set. I had high hopes
1 reply from Consumer Care Center team - 2 months ago
Hello Keisha! Thank you for sharing your experience after five weeks of using the Mela B3 routine; we understand how disappointing it can be to not see the transformation you were expecting, especially when using the complete set. Addressing persistent dark spots is a gradual process, as the formula’s advanced ingredients—including Melasyl™ and Niacinamide—work with your skin’s natural renewal cycle to refine the appearance of hyperpigmentation from within. A vital tip for seeing the best results with any brightening regimen is to be absolutely consistent with broad-spectrum sun protection every single day, as even a small amount of UV exposure can cause dark spots to darken further and stall your progress. We encourage you to continue with the full treatment while ensuring your skin is strictly protected from the sun, as most users begin to see more significant and visible improvements in skin tone and clarity after two to three months of dedicated, daily use.
2 out of 5 stars
4 February, 2026
originally posted on laroche-posay.us
Too strong of a smell
I have only been using the product for a few days now, but the scent is overpowering. It smells like floral laundry detergent. Sadly I won’t be able to stick with this one to even see if it works.
1 reply from Consumer Care Center team - 2 months ago
Hello MelC! Thank you for sharing your initial impressions with us; we understand that the sensory experience of a product is a very important part of a daily routine. We include a fresh, floral scent in the Mela B3 Serum to provide a premium and clinical feel during application, though we realize that fragrance sensitivity can vary greatly from person to person. This formula is a highly advanced treatment utilizing our proprietary Melasyl™ and 10% Niacinamide to target persistent dark spots and uneven skin tone, which typically yields the most significant results with several weeks of consistent use. A helpful tip if you find a scent to be a bit strong is to apply the serum to slightly damp skin and follow immediately with a fragrance-free moisturizer; this can help "buffer" the initial aroma and help it dissipate more quickly while still allowing the powerful active ingredients to work on refining your complexion.
5 out of 5 stars
30 January, 2026
originally posted on influenster.com
It improves skin tone gradually while remaining gentle enough for everyday use.
La Roche-Posay Mela B3 is a highly effective skincare product designed to target dark spots and uneven skin tone while respecting sensitive skin. Its formula is lightweight, fast-absorbing, and comfortable for daily use, making it easy to incorporate into any skincare routine. With continued use, the skin looks visibly brighter, smoother, and more even, while maintaining a healthy and hydrated appearance. One of the strongest points of this product is how gentle it feels on the skin, helping to improve pigmentation without causing dryness, redness, or irritation. Backed by dermatological expertise, Mela B3 delivers noticeable results while keeping the skin balanced and protected. It is a great option for anyone looking to improve skin clarity and radiance in a safe and effective way.