Compare Products: Mela B3 Serum vs Glass Skin Refining Serum

La Roche Posay

Mela B3 Serum

Premium10%
$45 / 30ml — $1.50/ml
Peach & Lily

Glass Skin Refining Serum

Mid-range~2-5%
$39 / 40ml — $0.98/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
Peach & Lily
  • Sensitive or eczema-prone skin seeking gentle actives
  • Those wanting the 'glass skin' luminous hydration look
  • Users who prioritize fragrance-free, clean formulas
  • People new to niacinamide who want a lower concentration
  • K-beauty enthusiasts looking for a multi-benefit serum

Key Ingredients

La Roche Posay

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

Peach & Lily

Niacinamide, Hyaluronic Acid (multiple types), Madecassoside, Peach Extract, Peptides

Product Composition

24% similarity (11 ingredients in common)

Shared Ingredients
aqua/water/eauniacinamideglycerinpolysilicone-11bis-peg/ppg-16/16 peg/ppg-16/16 dimethiconesodium hyaluronatesodium hydroxidesodium thiosulfatecaprylyl glycoltrisodium ethylenediamine disuccinateci 17200/red 33
Only in La Roche Posay (21)
dimethiconepropylene glycolsilicacystoseira tamariscifolia extract2-mercaptonicotinoyl glycinepeg-20 methyl glucose sesquistearatecarnosinepoloxamer 338ammonium polyacryloyldimethyl tauratedipotassium glycyrrhizatecaprylic/capric triglyceridecapryloyl salicylic acidcitric acidxanthan gumpentylene glycoloctyldodecanolretinyl palmitatetocopherolpentaerythrityl tetra-di-t-butyl hydroxyhydrocinnamatephenoxyethanolparfum/fragrance
Only in Peach & Lily (13)
propanediolbutylene glycol2-hexanediolprunus persica (peach) fruit extractdioscorea japonica root extractadenosinemadecassosideacetyl octapeptide-3hydrolyzed corn starchbeta-glucansaccharide isomeratesucroseasiaticoside

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.

Peach & Lily
Hydration standout

Users consistently report improved hydration and a plumper, more luminous appearance. Many describe the 'glass skin' effect as real.

Sensitive skin safe

Eczema-prone and reactive skin users frequently report no irritation. Popular first serum for those new to actives.

Texture praise

Lightweight gel texture absorbs quickly. Some note a slight initial tack that disappears once fully absorbed. Layers well.

Fading scars

Multiple users report gradual fading of acne scars and improved evenness over weeks of use.

Repeat purchase loyalty

High repurchase rate in reviews. Users describe it as a staple they consistently return to.

Which Should You Buy?

Peach & Lily Glass Skin Refining Serum 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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