Compare Products: 10% Niacinamide Booster vs Glass Skin Refining Serum
Ingredient Analysis
Paula's Choice 10% Niacinamide Booster leads on brightening and antioxidant depth, with vitamin C, licorice, and EGCG. Peach & Lily Glass Skin Refining Serum leads on skin-barrier hydration, with five hyaluronate forms and centella actives. The better pick depends on whether brightening or plumping hydration is the priority.
Paula's Choice 10% Niacinamide Booster stacks ascorbyl glucoside, licorice extracts, and acetyl glucosamine. Peach & Lily Glass Skin Refining Serum has no dedicated brightening actives.
Paula's Choice 10% Niacinamide Booster includes EGCG, genistein, carnosine, and vitamin C. Peach & Lily Glass Skin Refining Serum offers minimal antioxidant coverage.
Peach & Lily Glass Skin Refining Serum's five hyaluronate forms and saccharide isomerate deliver layered, lasting moisture. Paula's Choice 10% Niacinamide Booster has only one hyaluronate.
Madecassoside, asiaticoside, and adenosine in Peach & Lily Glass Skin Refining Serum actively support barrier repair. Paula's Choice 10% Niacinamide Booster soothes but does not repair as directly.
Paula's Choice 10% Niacinamide Booster uses phenoxyethanol and citric acid, which sensitive skin may notice. Peach & Lily Glass Skin Refining Serum's preservative load is lighter.
- •Niacinamide appears earlier in Peach & Lily Glass Skin Refining Serum's list than in Paula's Choice 10% Niacinamide Booster's, suggesting a higher concentration, but exact percentages are undisclosed for both.
- •Ascorbyl glucoside stability and conversion to active vitamin C vary by formulation pH; efficacy is not guaranteed.
- •Acetyl Octapeptide-3 in Peach & Lily Glass Skin Refining Serum has limited peer-reviewed evidence; its benefit depends heavily on concentration.
- •Genistein in Paula's Choice 10% Niacinamide Booster is a phytoestrogen; those sensitive to hormonal actives may want to note this.
- •All five hyaluronate forms in Peach & Lily Glass Skin Refining Serum are listed in the lower half of the list, so concentrations of each may be modest.
- •EGCG (epigallocatechin gallate) can degrade with exposure to air and light; packaging affects real-world potency.
Analysis generated from both INCI lists using Claude. Ingredient order indicates relative concentration; exact percentages are usually undisclosed.
Who It's Designed For
- Enlarged pores and uneven texture
- Uneven skin tone and dullness
- Post-acne marks and discoloration
- Fine lines and early aging concerns
- 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
Niacinamide (10%), Ascorbyl Glucoside (Vitamin C), Licorice Root Extract
Niacinamide, Hyaluronic Acid (multiple types), Madecassoside, Peach Extract, Peptides
Product Composition
30% similarity (12 ingredients in common)
Only in Paula's Choice (15)▾
Only in Peach & Lily (13)▾
User Feedback Patterns
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.
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.
Most users report noticing effects (smoother skin, smaller-looking pores, more even tone) after several weeks of consistent use rather than immediate results.
The booster format gets consistent praise for layering easily. Users report no issues combining it with retinol, acids, or other actives.
Users consistently report improved hydration and a plumper, more luminous appearance. Many describe the 'glass skin' effect as real.
Eczema-prone and reactive skin users frequently report no irritation. Popular first serum for those new to actives.
Lightweight gel texture absorbs quickly. Some note a slight initial tack that disappears once fully absorbed. Layers well.
Multiple users report gradual fading of acne scars and improved evenness over weeks of use.
High repurchase rate in reviews. Users describe it as a staple they consistently return to.
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