La Roche-Posay Mela B3 Serum

La Roche-Posay Mela B3 Dark Spot Serum

4.1 View 91 reviews

$44.99

Highlights

Suitable for all skin types
Respects your skin’s natural tone
Balances out the look of discoloration

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Product Overview

La Roche-Posay Mela B3 Dark Spot Serum corrects discoloration like nothing else before.

This serum fades sun spots, age spots and even stubborn dark spots with 10% niacinamide and a new, exclusive ingredient called Melasyl. It reduces the appearance of imperfections in as fast as two weeks. In testing, 1.7 times as many people had strong results with Melasyl as compared to similar actives.

Consumer Results:

Skin imperfections look reduced after 2 weeks
With twice daily use, skin continues to maintain improvement after 2 weeks

Key Features:

Delivers long-lasting results for all skin tones
Tested on even persistent dark spots and post-acne marks
Reveals brighter and more radiant skin

Highlights

Suitable for all skin types
Respects your skin’s natural tone
Balances out the look of discoloration

Ingredients

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Customer Reviews (91)

Overall Rating

4.1

Based on 91 reviews

Review Summary

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91 Reviews

LovelySkin Customer

from Illinois

Age Group: 60-69

Verified Purchase

October 20, 2026

La Roche Posay Mela B Dark Spot Serum is Working

I have melasma and hyperpigmentation. I've used many, often pricey, dark spot serums over the years. I just purchased my second bottle and my dark spots are much lighter. I have received more compliments on my complexion recently and I'm happy with the results. It's a good value at a fair price point.

1 person found this helpful

AnnieB

from Colorado

Age Group: 60-69

Wavy, Dry Hair

Dry Skin

Verified Purchase

October 13, 2026

Ok So Far

I’ve been using this dark spot serum for about 3 weeks and haven’t seen any noticeable changes yet. It has a light pleasant scent, goes on smoothly, and absorbs well.

2 people found this helpful

rachelirenes

Verified Purchase

September 28, 2026

MelaB3

I really like this serum. The first 30 days I was mixing it with another La-Roche product and this time I am applying it alone, which I much prefer and feel like I am seeing better results. Applies smoothly, not sticky, no odor.

1 person found this helpful

LovelySkin Customer

Verified Purchase

August 21, 2026

Pretty lavender color serum

It looks nice, feels substantial, smells good. Will take awhile to see if it diminishes dark spots.

2 people found this helpful

Roxie11

from New Jersey

Age Group: 60-69

Dry Skin

Verified Purchase

August 13, 2026

Smells Very Clean

So far so good! It goes on very smooth and soaks in right away. Bottle is very easy to use with the advanced dropper. Happy with the purchase.

1 person found this helpful

Tlcc

Verified Purchase

August 08, 2026

Dark Spot Serum

I love this serum. This was recommended when I reached out to the customer service about sun spots. I have noticed a difference in the sun spots and I am very pleased with the results.

5 people found this helpful

Celia

from Massachusetts

Normal Skin

Verified Purchase

July 21, 2026

Did Not Work For Me

I purchased this serum to fade a light brown spot on the side of my face. I understood that it might take many months to notice it working. I've gone through two bottles and the brown spot has not faded. I probably need a stronger version. Therefore, I will not be repurchasing.

8 people found this helpful

LovelySkin Customer

from Minnesota

Verified Purchase

June 22, 2026

Nice scent

This dark spot serum has a nice thicker texture than other products I have used. It also has a very nice scent. So far I have not seen results of lightening dark spots, however I have only been using it for a week and would not expect to see changes this soon.

2 people found this helpful

LovelySkin Customer

from Florida

Verified Purchase

June 17, 2026

Great product

Is working better for dark spots than dermatologist products

2 people found this helpful

LovelySkin Customer

Normal Skin

Verified Purchase

June 01, 2026

Laryngeal-Posay Mela B3 Dark Spot Serum

While it’s too early to see full results, the serum was recommended to me for sun damage on forehead. Texture is thicker and absorbs into skin nicely.

0 people found this helpful

ICU

from New Jersey

Age Group: 70-79

Straight Hair

Normal Skin

Verified Purchase

May 19, 2026

Seems to be fading my dark spots.

Received some samples of this product. Enough for two weeks. Was impressed with the slight fading of these dark spots in just two weeks. I bought the full size bottle. Will see how much fading will be achieved when the bottle is finished. If it continues to do it's job I will write a review and give it 5 stars.

2 people found this helpful

88Skin

from Nevada

Age Group: 30-39

Verified Purchase

May 07, 2026

Spot Treatment for stubborn hyperpigmentation

This is a new product that I started using to help lighten hyperpigmentation I have from a burn years ago. None of the products I have used thus far has been able to lighten and make less noticeable. This product I have been applying to a specific area for 1 month and noticed about a 35% decrease. Very happy so far, will continue to use an hopefully improve results further.

5 people found this helpful

ShannonW

from Texas

Verified Purchase

May 05, 2026

Not as good as Niacinamide 10

Mela B3 was recommended after La Roche-Posay stopped making their Niacinamide 10 Serum. Mela B3 is a decent substitute, but I really miss the Niacinamide! The Mela B3 does have a nice slip to it when you put it on, and seems to brighten my skin. I'll keep using it, but I wish they still made the other! :(

2 people found this helpful

Smokey

from Wisconsin

Age Group: 70-79

Curly, Color treated hair

Combination Skin

Verified Purchase

April 25, 2026

Excellent

I’ve been using this product for awhile and it works

1 person found this helpful

SallyJo2023

Age Group: 60-69

Mature Skin

Verified Purchase

March 21, 2026

too soon to tell

Product has pleasant aroma and feels refreshing. If I use too much, it leaves a pink film so I make an effort to use lightly. Hope it works.

2 people found this helpful

MsChatty

from Michigan

Age Group: 60-69

Combination Skin

Verified Purchase

March 15, 2026

Great product so far

I haven't been using this product long-but it's already making a difference in my skin. I'm trying to get rid of dark spots and they have already lightened a bit and the surrounding skin looks great too !

4 people found this helpful

CAW

Verified Purchase

March 14, 2026

Wanted to like

The serum caused my sensitive skin to break out. Sadly I had to discontinue using.

5 people found this helpful

TamiV

from Indiana

Age Group: 60-69

Mature Skin

Verified Purchase

March 10, 2026

Dark Spot fading

I’ve got a couple of dark spots on my face that I’ve used this on. I’m very pleased with the results. It didn’t break out my skin or leave it dry. The spots started fading quickly!

10 people found this helpful

LovelySkin Customer

from Utah

Age Group: 80+

Verified Purchase

February 24, 2026

LaRoche -Posay Melba B3 Dark Spot Serum

I bought this for my husband to use for the dark facial spots on his forehead. This is the second bottle that he is using. So far the spots are getting somewhat lighter but still visible. Hoping that with continued use with the product and using sunscreen along with wearing a hat to protect from the UVA rays will achieve the desired results.

5 people found this helpful

sys09

Age Group: 40-49

Verified Purchase

February 15, 2026

Great Serum

Does a great job of evening out my skin tone. Will be purchasing again

3 people found this helpful

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La Roche-Posay Mela B3 Dark Spot Serum

Product Overview

La Roche-Posay Mela B3 Dark Spot Serum corrects discoloration like nothing else before.

Highlights

Ingredients

Directions

Shipping & Returns

Questions & Answers (1)

Product Specifications

About the Brand

Featured In

Customer Reviews (91)

Overall Rating

Review Summary

Write a Review

La Roche Posay Mela B Dark Spot Serum is Working

Ok So Far

MelaB3

Pretty lavender color serum

Smells Very Clean

Dark Spot Serum

Did Not Work For Me

Nice scent

Great product

Laryngeal-Posay Mela B3 Dark Spot Serum

Seems to be fading my dark spots.

Spot Treatment for stubborn hyperpigmentation

Not as good as Niacinamide 10

Excellent

too soon to tell

Great product so far

Wanted to like

Dark Spot fading

LaRoche -Posay Melba B3 Dark Spot Serum

Great Serum

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