Compare Products: Mela B3 Serum vs Clinical Niacinamide 20% Treatment

La Roche Posay

Mela B3 Serum

Premium10%
$45 / 30ml — $1.50/ml
Paula's Choice

Clinical Niacinamide 20% Treatment

Mid-range20%
$55 / 20ml — $2.75/ml

Who It's Designed For

La Roche Posay
  • Those with stubborn hyperpigmentation including sunspots, age spots, and post-acne marks
  • Users seeking dermatologist-backed, clinically tested brightening products
  • People who want an alternative mechanism to vitamin C or hydroquinone
  • All skin tones; formulated to work without affecting natural skin tone
  • Sensitive skin types who need gentle but effective brightening
Paula's Choice
  • Stubborn enlarged or sagging pores that haven't responded to 10% niacinamide
  • Orange-peel texture and rough, bumpy skin
  • Sebaceous hyperplasia
  • Advanced pore concerns related to aging or sun damage
  • Post-acne marks and uneven texture

Key Ingredients

La Roche Posay

Niacinamide (10%), Melasyl (2-Mercaptonicotinoyl Glycine), Sodium Hyaluronate, LHA (Capryloyl Salicylic Acid)

Paula's Choice

Niacinamide (20%), Ascorbyl Glucoside (Vitamin C), Meadowsweet Extract

Product Composition

28% similarity (13 ingredients in common)

Shared Ingredients
aqua/water/eauniacinamideglycerinsilicasodium hyaluronatesodium hydroxidesodium thiosulfatedipotassium glycyrrhizatetrisodium ethylenediamine disuccinatexanthan gumpentylene glycolphenoxyethanolci 17200/red 33
Only in La Roche Posay (19)
dimethiconepropylene glycolpolysilicone-11bis-peg/ppg-16/16 peg/ppg-16/16 dimethiconecystoseira tamariscifolia extract2-mercaptonicotinoyl glycinepeg-20 methyl glucose sesquistearatecarnosinepoloxamer 338ammonium polyacryloyldimethyl tauratecaprylic/capric triglyceridecapryloyl salicylic acidcaprylyl glycolcitric acidoctyldodecanolretinyl palmitatetocopherolpentaerythrityl tetra-di-t-butyl hydroxyhydrocinnamateparfum/fragrance
Only in Paula's Choice (14)
butylene glycolacetyl glucosamineascorbyl glucosidespiraea ulmaria (meadowsweet) extractportulaca oleracea (purslane) extractcamellia japonica flower extractepigallocatechin gallateboerhavia diffusa root extractcamellia sinensis (green tea) leaf extractallantoinpullulanpanthenolsclerotium gumpropanediol

User Feedback Patterns

La Roche Posay
Effective for post-acne marks

Users frequently report fading of post-inflammatory hyperpigmentation from acne. Often noted as more effective than previous vitamin C serums.

Gentle on sensitive skin

Despite fragrance, many sensitive skin users report no irritation. Users with rosacea have noted tolerance.

Gradual results

Users report seeing changes over weeks to months. Not overnight results, but consistent improvement with regular use.

Texture praise

Lightweight serum absorbs quickly without greasiness. Layers well under sunscreen and makeup.

Mixed expectations

Some users with stubborn melasma or very dark spots report only modest improvement. Works better on newer or less severe pigmentation.

Paula's Choice
More effective than 10% for stubborn concerns

Users who found the 10% booster insufficient often report better results with this formula, particularly for aging-related pore concerns and textural issues.

Texture and feel

The gel texture feels slightly oily to some users before it dries down. Some report a tacky feel or that it takes time to absorb. Most find it works well under moisturizer.

Potential irritation at high concentration

Some users report sensitivity, flushing, or irritation — especially if used daily from the start. Several reviewers recommend using every other day initially or finding 10% sufficient.

Gradual, cumulative results

Like the 10% booster, results are typically seen over weeks of consistent use rather than immediately. Some users report noticeable improvement within 1-2 weeks; others need longer.

Which Should You Buy?

Paula's Choice Clinical Niacinamide 20% Treatment offers great value at a lower price point. La Roche Posay Mela B3 Serum may be worth the premium if you want Niacinamide (10%).

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