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Naturium Retinaldehyde Cream Serum 0.05%, Advanced Anti-Ageing & Smoothing Face & Skin Care vs La Roche-Posay Mela B3 Serum, Dark Spot Corrector With Anti-Aging Melasyl + 10% Niacinamide, Discoloration Correcting Serum for Sun Spots, Age Spots & Post-Acne Marks, Long-Lasting Results, 30ML

Naturium Retinaldehyde Cream Serum 0.05%, Advanced Anti-Ageing & Smoothing Face & Skin Care vs La Roche-Posay Mela B3 Serum, Dark Spot Corrector With Anti-Aging Melasyl + 10% Niacinamide, Discoloration Correcting Serum for Sun Spots, Age Spots & Post-Acne Marks, Long-Lasting Results, 30ML

Q: Retinol vs retinaldehyde: which actually scores higher?

Retinaldehyde beats retinol by 17.2 points on effectiveness in our database. Across 42 retinol/retinoid products scored, the 3 retinaldehyde products average 78.3 effectiveness vs 61.1 for 31 retinol products. The two dedicated retinaldehyde products — Naturium Retinaldehyde Cream Serum 0.05% (80 effectiveness, 83 overall) and Paula's Choice CLINICAL Pro Retinaldehyde (74 effectiveness, 64 overall) — both outperform the retinol average. Medik8 Crystal Retinal 3 (81 effectiveness, 79 overall) uses retinaldehyde too, despite its name suggesting retinol. That gives us 3 retinaldehyde products total, all scoring above the retinol average on effectiveness. The caveat: 3 products is a small sample. We can't say retinaldehyde is categorically superior from this data alone. What we can say is that retinaldehyde sits one conversion step closer to retinoic acid (the active form your skin uses), and the products using it consistently score well. The gap is wide enough to take seriously, but not enough products exist yet to call it definitive.

Q: Why do most retinol products score below average?

The 31 retinol products in our database average just 61.1 on effectiveness. That means most retinol products we tested land in mediocre territory. The top performers prove retinol can work: Paula's Choice CLINICAL 1% Retinol hits 82 effectiveness (76 overall), Indeed Labs Retinol Reface reaches 80 effectiveness (75 overall), and The Ordinary Retinol 0.5% in Squalane scores 75 effectiveness (74 overall). So what separates these from the rest? Three factors. Concentration: products with clearly stated, meaningful percentages (0.5%–1%) score higher. Stability: retinol degrades with light and air exposure — packaging and formulation matter. Supporting ingredients: the top scorers pair retinol with stabilisers, squalane, or encapsulation technology that keeps the molecule intact until it reaches your skin. The average retinol product fails on one or more of these. Low concentrations, poor packaging, or bare-bones formulations drag scores down. A retinol product isn't automatically effective just because the label says 'retinol.'

Side-by-side comparison of scores, ingredients, prices and real customer feedback for Naturium Retinaldehyde Cream Serum 0.05%, Advanced Anti-Ageing & Smoothing Face & Skin Care and La Roche-Posay Mela B3 Serum, Dark Spot Corrector With Anti-Aging Melasyl + 10% Niacinamide, Discoloration Correcting Serum for Sun Spots, Age Spots & Post-Acne Marks, Long-Lasting Results, 30ML.

Last verified: 07 Apr 2026 · Based on 22 reviews

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83.0

Quick Answer

Naturium Retinaldehyde Cream Serum 0.05%, Advanced Anti-Ageing & Smoothing Face & Skin Care scores 83.0/100 vs La Roche-Posay Mela B3 Serum, Dark Spot Corrector With Anti-Aging Melasyl + 10% Niacinamide, Discoloration Correcting Serum for Sun Spots, Age Spots & Post-Acne Marks, Long-Lasting Results, 30ML at 75.0/100. Naturium Retinaldehyde Cream Serum 0.05%, Advanced Anti-Ageing & Smoothing Face & Skin Care wins on effectiveness, ingredient quality, skin compatibility.

How Do the Scores Compare?

Naturium Retinaldehyde Crea...

La Roche-Posay Mela B3 Seru...

	Naturium Retinaldehyde Crea... Naturium	La Roche-Posay Mela B3 Seru... La Roche-Posay
Overall Score	83.0	75.0
Effectiveness	80.0/100 Best	72.0/100
Ingredient Quality	82.0/100 Best	81.0/100
Skin Compatibility	83.0/100 Best	82.0/100
Texture & UX	84.0/100 Best	76.0/100
Value for Money	89.0/100 Best	64.0/100
Best Price	£30.42 Amazon UK → Cheapest	£36.00 Amazon UK →
Form	N/A	N/A
Dose	N/A	N/A
Third-Party Tested	✗ No	✗ No
Reviews Analysed	11	11

Naturium Retinaldehyde Cream Ser...

Pros

✓Retinaldehyde outperforms retinol at equivalent concentrations with a single conversion step to retinoic acid
✓Sustained-release delivery system significantly reduces the dryness and peeling typical of retinoids
✓Strong user consensus on smoothing, brightening, and anti-aging results across multiple skin types
✓Lightweight cream-serum texture layers cleanly under moisturiser without heaviness

Cons

✗0.05% concentration is entry-level; experienced retinoid users may need to advance to the 0.1% variant sooner than expected
✗One reviewer notes a faint cherry scent, suggesting possible fragrance or flavouring component absent from the description — a concern for fragrance-sensitive skin
✗Full INCI list not available for independent assessment of comedogenic or sensitising co-ingredients
✗Isolated packaging quality issue reported (detached pump dispenser) — a manufacturing consistency flag

Best For

retinoid beginners transitioning from retinol sensitive skin seeking anti-aging actives fine lines and uneven skin texture dry and combination skin types budget-conscious users wanting a retinaldehyde product

Amazon UK £30.42

View full review →

La Roche-Posay Mela B3 Serum, Da...

Pros

✓10% Niacinamide is a high, clinically validated concentration for brightening, pore minimisation, and barrier support
✓Melasyl (proprietary LRP molecule) targets melanin transfer — a mechanism distinct from most over-the-counter brighteners, adding genuine differentiation
✓Multiple reviewers confirm visible improvement in sun spots and post-acne marks within 4–12 weeks of consistent use
✓Lightweight, fast-absorbing texture layers well under moisturiser and SPF without pilling or stickiness

Cons

✗Results for true melasma are modest — users with chronic or hormonal melasma report only partial fading and may need prescription actives (tretinoin, tranexamic acid)
✗Overapplication causes a yellowish residue on skin — characteristic of high-percentage Niacinamide and can be off-putting
✗Distinctive non-cosmetic scent (raw ingredient odour noted) may be unpleasant for fragrance-sensitive users
✗Premium price point: some reviewers note comparable results may be achievable with lower-cost Niacinamide serums, reducing perceived value

Best For

post-acne dark marks and PIH sun spots and age spots on fair-to-medium skin tones oily and combination skin tolerating high Niacinamide users wanting a science-backed brightener without prescription actives layering into SPF-inclusive morning and evening routines

Amazon UK £36.00

View full review →

What does the data say about Naturium Retinaldehyde... vs La Roche-Posay Mela B3...?

Naturium Retinaldehyde Cream Serum 0.05%, Advanced Anti-Ageing & Smoothing Face & Skin Care Winner 83.0/100

Naturium's Retinaldehyde Cream Serum 0.05% uses retinaldehyde — a retinoid that converts directly to retinoic acid in a single enzymatic step, making it roughly 11x more potent than an equivalent retinol concentration while remaining gentler than prescription tretinoin.

Effectiveness

Naturium Retinal..

80.0/100

La Roche-Posay M..

72.0/100

Ingredient Quality

Naturium Retinal..

82.0/100

La Roche-Posay M..

81.0/100

Skin Compatibility

Naturium Retinal..

83.0/100

La Roche-Posay M..

82.0/100

Texture & UX

Naturium Retinal..

84.0/100

La Roche-Posay M..

76.0/100

Value for Money

Naturium Retinal..

89.0/100

La Roche-Posay M..

64.0/100

What are the key differences?

Naturium Retinaldehyde .. is best for: retinoid beginners transitioning from retinol, sensitive skin seeking anti-aging actives

La Roche-Posay Mela B3 .. is best for: post-acne dark marks and PIH, sun spots and age spots on fair-to-medium skin tones

Frequently Asked Questions

Which is better, Naturium Retinaldehyde Cream Serum 0.05%, Advanced Anti-Ageing & Smoothing Face & Skin Care or La Roche-Posay Mela B3 Serum, Dark Spot Corrector With Anti-Aging Melasyl + 10% Niacinamide, Discoloration Correcting Serum for Sun Spots, Age Spots & Post-Acne Marks, Long-Lasting Results, 30ML? ▼

Naturium Retinaldehyde Cream Serum 0.05%, Advanced Anti-Ageing & Smoothing Face & Skin Care scores 83.0/100 overall while La Roche-Posay Mela B3 Serum, Dark Spot Corrector With Anti-Aging Melasyl + 10% Niacinamide, Discoloration Correcting Serum for Sun Spots, Age Spots & Post-Acne Marks, Long-Lasting Results, 30ML scores 75.0/100. Naturium Retinaldehyde Cream Serum 0.05%, Advanced Anti-Ageing & Smoothing Face & Skin Care comes out ahead, scoring higher on effectiveness (80.0 vs 72.0). Naturium Retinaldehyde Cream S is best suited for retinoid beginners transitioning from retinol and sensitive skin seeking anti-aging actives. La Roche-Posay Mela B3 Serum, is better for post-acne dark marks and PIH and sun spots and age spots on fair-to-medium skin tones.

Is Naturium Retinaldehyde Cream Serum 0.05%, Advanced Anti-Ageing & Smoothing Face & Skin Care worth the price compared to La Roche-Posay Mela B3 Serum, Dark Spot Corrector With Anti-Aging Melasyl + 10% Niacinamide, Discoloration Correcting Serum for Sun Spots, Age Spots & Post-Acne Marks, Long-Lasting Results, 30ML? ▼

Naturium Retinaldehyde Cream Serum 0.05%, Advanced Anti-Ageing & Smoothing Face & Skin Care costs £30.42 while La Roche-Posay Mela B3 Serum, Dark Spot Corrector With Anti-Aging Melasyl + 10% Niacinamide, Discoloration Correcting Serum for Sun Spots, Age Spots & Post-Acne Marks, Long-Lasting Results, 30ML is £36.00. For value, Naturium Retinaldehyde Cream Serum 0.05%, Advanced Anti-Ageing & Smoothing Face & Skin Care scores 89.0/100 vs La Roche-Posay Mela B3 Serum, Dark Spot Corrector With Anti-Aging Melasyl + 10% Niacinamide, Discoloration Correcting Serum for Sun Spots, Age Spots & Post-Acne Marks, Long-Lasting Results, 30ML's 64.0/100. Naturium Retinaldehyde Cream Serum 0.05%, Advanced Anti-Ageing & Smoothing Face & Skin Care delivers better value relative to its quality.