Compare Products: Mela B3 Serum vs 10% Niacinamide Booster

La Roche Posay

Mela B3 Serum

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

10% Niacinamide Booster

Mid-range10%
$44 / 20ml — $2.20/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
  • Enlarged pores and uneven texture
  • Uneven skin tone and dullness
  • Post-acne marks and discoloration
  • Fine lines and early aging concerns

Key Ingredients

La Roche Posay

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

Paula's Choice

Niacinamide (10%), Ascorbyl Glucoside (Vitamin C), Licorice Root Extract

Product Composition

35% similarity (15 ingredients in common)

Shared Ingredients
aqua/water/eauniacinamideglycerinsodium hyaluronatesodium hydroxidesodium thiosulfatecarnosinedipotassium glycyrrhizatecaprylyl glycolcitric acidtrisodium ethylenediamine disuccinatexanthan gumpentylene glycolphenoxyethanolci 17200/red 33
Only in La Roche Posay (17)
dimethiconepropylene glycolpolysilicone-11silicabis-peg/ppg-16/16 peg/ppg-16/16 dimethiconecystoseira tamariscifolia extract2-mercaptonicotinoyl glycinepeg-20 methyl glucose sesquistearatepoloxamer 338ammonium polyacryloyldimethyl tauratecaprylic/capric triglyceridecapryloyl salicylic acidoctyldodecanolretinyl palmitatetocopherolpentaerythrityl tetra-di-t-butyl hydroxyhydrocinnamateparfum/fragrance
Only in Paula's Choice (11)
acetyl glucosamineascorbyl glucosidebutylene glycolphospholipidsallantoinboerhavia diffusa root extractepigallocatechin gallatebeta-glucanpanthenolgenisteinpolysorbate 20

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
Texture takes adjustment

The watery, almost runny texture surprises some users. It can feel like it's not "doing" anything. The brand intends for it to be mixed with other products, which helps with application.

Price comparison to The Ordinary

At roughly 7x the price of The Ordinary's niacinamide serum, value is a common discussion point. Users who prefer it cite the more elegant texture, additional beneficial ingredients, and lack of pilling.

Gradual, cumulative results

Most users report noticing effects (smoother skin, smaller-looking pores, more even tone) after several weeks of consistent use rather than immediate results.

Plays well with other products

The booster format gets consistent praise for layering easily. Users report no issues combining it with retinol, acids, or other actives.

Which Should You Buy?

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

View Full Product Details

Related Comparisons