La Roche-Posay Mela B3 Dark Spot Serum 30ml

Description

La Roche-Posay Mela B3 Serum is not simply a conventional Niacinamide serum.

Its brightening strategy centers on:

Melasyl™ + 10% Niacinamide

with supporting ingredients that address hydration, skin texture and antioxidant care.

Melasyl’s INCI name is:

2-Mercaptonicotinoyl Glycine

sometimes abbreviated:

2-MNG.

L’Oréal describes Melasyl as a proprietary multi-patented molecule designed to address localized pigmentation and improve the appearance of pigmented marks across skin tones.

Its mechanism differs from simply blocking tyrosinase. Published research describes 2-MNG as binding to specific melanin precursors, helping limit their conversion into visible pigment while preserving melanocyte integrity.

The serum is designed for concerns including:

• persistent dark spots
• post-acne marks / PIH
• sun spots
• age spots
• uneven-looking skin tone
• dullness
• recurring-looking discoloration.

La Roche-Posay’s U.S. product page specifically identifies all skin types and all skin tones among its intended users.

Key Benefits of La Roche-Posay Mela B3 Serum

• Helps Visibly Reduce Persistent Dark Spots
  Melasyl™ and 10% Niacinamide work together to improve the appearance of stubborn discoloration.
• Targets Post-Acne Marks
  The serum is specifically recommended for post-inflammatory hyperpigmentation left after blemishes.
• Helps Improve Sun Spots & Age Spots
  La Roche-Posay includes both UV-related and age-related visible pigmentation among the serum’s target concerns.
• Contains 10% Niacinamide
  A clearly verified concentration of Vitamin B3 supports brightening, barrier care and more even-looking skin.
• Provides Gentle Texture Refinement With LHA
  Capryloyl Salicylic Acid, also known as LHA, provides gentle keratolytic/resurfacing support within the formula.
• Supports Hydration
  Glycerin, Propylene Glycol and Sodium Hyaluronate help maintain skin moisture.
• Provides Antioxidant & Soothing Support
  Carnosine, Tocopherol and Dipotassium Glycyrrhizate complement the pigmentation-focused actives.
• Clinically Evaluated Across Skin Tones
  La Roche-Posay reports testing across different skin phototypes and visible improvements in dark spots with continued use.

Key Ingredients & Their Benefits

Current U.S. Full Ingredient List

La Roche-Posay U.S. currently lists:

Aqua / Water / Eau, Dimethicone, Niacinamide, Glycerin, Propylene Glycol, Polysilicone-11, Silica, Bis-PEG/PPG-16/16 PEG/PPG-16/16 Dimethicone, Cystoseira Tamariscifolia Extract, 2-Mercaptonicotinoyl Glycine, PEG-20 Methyl Glucose Sesquistearate, Sodium Hyaluronate, Sodium Hydroxide, Sodium Thiosulfate, Carnosine, Poloxamer 338, Ammonium Polyacryloyldimethyl Taurate, Dipotassium Glycyrrhizate, Caprylic/Capric Triglyceride, Capryloyl Salicylic Acid, Caprylyl Glycol, Citric Acid, Trisodium Ethylenediamine Disuccinate, Xanthan Gum, Pentylene Glycol, Octyldodecanol, Retinyl Palmitate, Tocopherol, Pentaerythrityl Tetra-di-t-butyl Hydroxyhydrocinnamate, Phenoxyethanol, CI 17200 / Red 33, Parfum / Fragrance.

Important Regional Formula Difference

The current UK Mela B3 Intense Anti-Dark Spot Serum lists essentially the same core formula and uses the same barcode 3337875890021, but its published INCI ends at Phenoxyethanol and does not list Parfum/Fragrance or CI 17200 / Red 33.

Therefore:

U.S. formula: fragrance + Red 33 listed.

Current UK formula: no fragrance or Red 33 shown in the official online INCI.

For Infinity Skincare Solutions, the ingredient list printed on the actual imported 30ml package should be the final authority.

Why Choose La Roche-Posay Mela B3 Serum?

A dermatologist-developed discoloration serum combining Melasyl™, 10% Niacinamide, LHA, Hyaluronic Acid and antioxidant-supporting ingredients.

• 10% Niacinamide
  Provides a clearly disclosed high-strength Vitamin B3 concentration.
• Features Melasyl™ Technology
  Uses La Roche-Posay/L’Oréal’s proprietary multi-patented pigmentation ingredient.
• Developed From 18 Years of Research
  Melasyl is the result of long-term pigmentation research within L’Oréal.
• Targets Multiple Types of Dark Spots
  Suitable for post-acne marks, sun spots, age spots and persistent discoloration.
• Contains LHA
  Provides gentle texture-refining support alongside pigmentation care.
• Contains Hyaluronic Acid
  Sodium Hyaluronate provides complementary hydration.
• Suitable Across Skin Tones
  La Roche-Posay specifically reports testing across skin phototypes.
• Suitable for AM & PM Use
  Can be incorporated into either or both daily routines.
• Clinically Tested
  Brand and published research support visible dark-spot improvement with continued use.
• Dermocosmetic Brand Formulation
  Developed by La Roche-Posay within its dermatology-focused Mela B3 pigmentation range.

How to Use

La Roche-Posay UK currently recommends 3–4 drops morning and/or evening to the face, neck and décolleté after cleansing.

Product Specifications

Important: What Is Melasyl™?

Melasyl™ is the commercial name for:

2-Mercaptonicotinoyl Glycine / 2-MNG.

L’Oréal introduced the molecule after approximately 18 years of research into localized pigmentation.

Its mechanism is particularly interesting because it differs from many traditional brightening ingredients.

Published research describes Melasyl as interacting with certain melanin precursors before they develop into visible eumelanin and pheomelanin pigment.

La Roche-Posay describes this more simply as an:

“active melanin trapper.”

For consumer-facing copy, a safe explanation is:

“Melasyl helps intercept excess pigment precursors before they visibly mark the skin, supporting a more even-looking natural skin tone.”

How Much Melasyl Is in Mela B3?

La Roche-Posay’s current consumer product page does not disclose an exact Melasyl percentage.

However, a 2025 randomized clinical study specifically investigating Mela B3 serum identifies the tested serum as containing:

0.5% 2-Mercaptonicotinoyl Glycine.

For Infinity Skincare Solutions, the most careful wording is:

“Formulated with Melasyl™; a published 2025 clinical study of Mela B3 used a serum containing 0.5% 2-MNG.”

Avoid presenting 0.5% as an independently printed consumer-package claim unless your stock confirms it.

Important 10% Niacinamide Note

Unlike the Melasyl concentration, the Niacinamide concentration is officially disclosed by La Roche-Posay:

10% Niacinamide.

This is a significant concentration and is one of the product’s two headline pigmentation ingredients.

Niacinamide supports:

• more even-looking tone
• barrier function
• soothing
• reduced appearance of discoloration
• improved overall complexion clarity.

What Is LHA?

The formula contains:

Capryloyl Salicylic Acid

also known as:

LHA — Lipohydroxy Acid.

LHA is related to Salicylic Acid but should not be described as ordinary BHA at the same concentration.

Its role here is mainly:

• gentle surface renewal
• smoother-looking texture
• support for a brighter complexion.

La Roche-Posay does not publicly disclose the exact LHA percentage in this serum.

Does It Contain Retinol?

It does not contain Retinol itself.

However, it contains:

Retinyl Palmitate

which is a Vitamin A ester / retinoid derivative.

Retinyl Palmitate is generally much milder than:

• Retinol
• Retinal
• Tretinoin.

But it should still not be described as:

“retinoid-free.”

Is It Fragrance-Free?

This depends on the regional formula.

U.S. Formula

Contains:

Parfum / Fragrance

and:

CI 17200 / Red 33.

Current UK Formula

The official UK ingredient list does not include Parfum or Red 33.

Therefore, do not apply a universal:

“fragrance-free”

claim across all Mela B3 30ml stock.

Check the actual Infinity package.

Is It Alcohol-Free?

The current U.S. and UK formulas do not list:

Alcohol Denat.

or

Ethanol.

Ingredients such as:

• Propylene Glycol
• Pentylene Glycol
• Caprylyl Glycol

are not the same as conventional drying ethanol.

Does It Contain Hyaluronic Acid?

Yes.

It contains:

Sodium Hyaluronate

which supports hydration and helps improve the serum’s overall skin feel.

Does It Contain Tranexamic Acid?

No.

Mela B3 uses Melasyl™ + 10% Niacinamide as its primary pigmentation technology rather than Tranexamic Acid.

This makes it distinct from products such as:

• Cos De BAHA TN Serum
• many Tranexamic Acid-focused dark spot serums.

Does It Contain Hydroquinone?

No.

Hydroquinone does not appear in the current Mela B3 ingredient list.

Interestingly, a 2025 randomized study compared a 0.5% 2-MNG Mela B3 serum with 4% Hydroquinone in women with facial melasma. The study found Mela B3 met its non-inferiority endpoint and showed better early tolerability in that trial.

That research should not be interpreted as medical advice or a guarantee that Mela B3 replaces prescription treatment for every patient with melasma.

Is Mela B3 Good for Post-Acne Marks?

Yes.

La Roche-Posay specifically lists:

post-acne marks / post-inflammatory hyperpigmentation

among the serum’s target concerns.

It is most relevant to:

• flat brown marks
• persistent post-blemish discoloration
• uneven tone after acne.

It does not physically rebuild:

• ice-pick scars
• rolling scars
• boxcar scars
• hypertrophic scars.

Is Mela B3 Good for Melasma?

Mela B3 has been clinically studied in melasma.

A 2025 randomized, investigator-blind trial included 109 adult women with mild-to-severe epidermal or mixed facial melasma. Participants used either Mela B3 containing 0.5% 2-MNG twice daily or Hydroquinone 4% once daily, together with high-protection tinted sunscreen.

The study reported significant improvement in both treatment groups, with Mela B3 meeting the predefined non-inferiority criterion and demonstrating better early tolerability at day 28.

However, melasma is a chronic medical pigmentation disorder.

Infinity Skincare Solutions should not market this serum as:

“a permanent melasma cure.”

A responsible claim is:

“Mela B3 has been clinically studied for facial hyperpigmentation including melasma, but persistent melasma may require dermatologist-supervised treatment.”

Clinical & Brand-Reported Results

La Roche-Posay U.S. currently reports that after 2 weeks:

• skin appears brighter and more radiant
• imperfections appear reduced
• visible improvement continues with use.

After 8 weeks:

90% of subjects showed improvement in at least one measure relating to persistent dark spots in the brand-reported study.

La Roche-Posay UK separately reports:

94% showed clinically reduced dark spots after 12 weeks

based on instrumental measurement in 50 subjects.

These are brand-reported clinical/consumer results and do not guarantee identical results for every user.

Why Sunscreen Is Essential

Mela B3 does not contain SPF.

When treating:

• hyperpigmentation
• sun spots
• post-acne marks
• melasma
• age spots

daily sunscreen is essential.

La Roche-Posay UK specifically instructs users to complete the routine with broad-spectrum SPF after applying the serum.

A practical morning routine is:

Cleanser → Mela B3 Serum → Moisturizer → Broad-Spectrum SPF 30–50+

For pigmentation-prone skin, consistent high UVA protection is particularly important.

Can It Be Used With Vitamin C?

There is no pure Vitamin C in Mela B3.

Many users can incorporate Vitamin C and Mela B3 within the same overall routine, but because Mela B3 already contains:

• 10% Niacinamide
• LHA
• Retinyl Palmitate

highly sensitive users may prefer separating strong active products.

A simple option:

AM: Vitamin C → Moisturizer → SPF

PM: Mela B3 → Moisturizer.

Can It Be Used With Retinol?

Mela B3 already contains Retinyl Palmitate, a mild Vitamin A derivative.

Users applying a stronger retinoid such as:

• Retinol
• Retinal
• Adapalene
• Tretinoin

should monitor cumulative irritation carefully.

For reactive skin, using Mela B3 and stronger retinoids at different times or on alternate nights is the more conservative approach.

Can It Be Used With AHA/BHA?

Mela B3 already contains LHA / Capryloyl Salicylic Acid.

Adding a strong:

• Glycolic Acid
• Lactic Acid
• Salicylic Acid
• peeling solution

in the same routine may increase irritation for some users.

If your skin is sensitive, alternate the products rather than layering everything together.

Pros & Cons

La Roche-Posay Mela B3 Dark Spot Serum 30ml Price in Bangladesh

The La Roche-Posay Mela B3 Dark Spot Serum 30ml price in Bangladesh varies depending on retailer, regional formula and import source.

Current Bangladesh listings checked include approximately:

• ৳3,549 at Beauty Booth
• ৳3,550 at Prince Gallery
• ৳3,700 at 3 Star Cosmetics
• ৳3,800 at Beauty Buy BD
• ৳4,200 at Arogga.

These are temporary market references and may change.

For the latest La Roche-Posay Mela B3 Dark Spot Serum 30ml price in Bangladesh, check Infinity Skincare Solutions or contact customer support.

Why Buy from Infinity Skincare Solutions?

Infinity Skincare Solutions provides 100% authentic international skincare products from carefully selected and trusted brands. We help customers throughout Bangladesh choose products according to their skin type, concern, climate, and everyday skincare routine.

When you shop with Infinity Skincare Solutions, you receive:

• 100% authentic international skincare products
• Trusted international skincare shopping in Bangladesh
• Carefully selected global skincare brands
• Fast delivery across Bangladesh
• Cash on delivery availability
• Friendly and responsive customer support
• Product guidance based on your skin type and concern

Choose La Roche-Posay Mela B3 Dark Spot Serum 30ml if your main concerns are persistent dark spots, post-acne marks, sun spots, age spots, dullness or uneven skin tone and you want an advanced pigmentation serum combining Melasyl™ with 10% Niacinamide and LHA.

FAQs

1. What does La Roche-Posay Mela B3 Serum do?

It is designed to visibly improve persistent dark spots, post-acne marks, age spots, sun spots and uneven skin tone using Melasyl™ together with 10% Niacinamide.

2. How much Niacinamide is in Mela B3?

La Roche-Posay officially confirms 10% Niacinamide in Mela B3 Serum.

3. What is Melasyl?

Melasyl™ is La Roche-Posay/L’Oréal’s proprietary 2-Mercaptonicotinoyl Glycine ingredient, developed to target excess pigmentation while respecting the skin’s natural tone.

4. How much Melasyl does Mela B3 contain?

The current consumer page does not state a percentage. However, a published 2025 clinical study of Mela B3 identifies the investigated serum as containing 0.5% 2-MNG/Melasyl.

5. Is Mela B3 good for post-acne marks?

Yes. La Roche-Posay specifically recommends it for post-inflammatory hyperpigmentation / post-acne marks. It helps with discoloration, not deep indented acne scars.

6. Does Mela B3 contain Salicylic Acid?

It does not list free Salicylic Acid, but it contains Capryloyl Salicylic Acid (LHA), a related lipohydroxy acid used for gentle surface renewal.

7. Is La Roche-Posay Mela B3 fragrance-free?

It depends on the region. The current U.S. formula lists Parfum/Fragrance, while the official current UK formula does not list fragrance. Check the ingredient list on your exact package.

8. Can I use Mela B3 morning and night?

Yes. La Roche-Posay recommends approximately 3–4 drops morning and/or evening after cleansing. Always follow with sunscreen in the morning.

9. Is Mela B3 suitable for melasma?

Mela B3 has been clinically studied in women with facial melasma, but melasma is a chronic medical pigmentation condition. The serum may support improvement, but persistent melasma can require dermatologist-supervised treatment.

10. Where can I buy authentic La Roche-Posay Mela B3 Dark Spot Serum 30ml in Bangladesh?

You can buy La Roche-Posay Mela B3 Dark Spot Serum 30ml from Infinity Skincare Solutions. Check the product page or contact customer support for current price, stock status, U.S./EU formula version, barcode, expiry information, and nationwide delivery.