Compare Products: 10% Niacinamide Booster vs Niacinamide 10% + Zinc 1% Serum
Ingredient Analysis
Paula's Choice 10% Niacinamide Booster is a richer, multi-active brightening serum with antioxidants, hydrators, and skin-barrier support. The Ordinary Niacinamide 10% + Zinc 1% Serum is a minimal two-active formula focused on niacinamide and zinc for oiliness and pore appearance. Choose based on your skin goals.
Paula's Choice 10% Niacinamide Booster adds ascorbyl glucoside, acetyl glucosamine, and multiple botanical brighteners. The Ordinary Niacinamide 10% + Zinc 1% Serum relies on niacinamide alone for tone.
Zinc PCA directly targets sebum regulation. Paula's Choice 10% Niacinamide Booster has no dedicated sebum-control ingredient.
Paula's Choice 10% Niacinamide Booster has sodium hyaluronate, phospholipids, beta-glucan, panthenol, and glycerin. The Ordinary Niacinamide 10% + Zinc 1% Serum offers minimal hydration support.
Paula's Choice 10% Niacinamide Booster contains EGCG, carnosine, genistein, and ascorbyl glucoside. The Ordinary Niacinamide 10% + Zinc 1% Serum has no dedicated antioxidants.
The Ordinary Niacinamide 10% + Zinc 1% Serum has fewer ingredients, reducing the chance of a reaction. Paula's Choice 10% Niacinamide Booster's complexity is low risk overall but higher than The Ordinary Niacinamide 10% + Zinc 1% Serum.
- •Niacinamide concentration is undisclosed in both products. Efficacy depends heavily on percentage used.
- •Ascorbyl glucoside converts to vitamin C slowly in skin; its real-world brightening speed is lower than pure ascorbic acid.
- •Zinc PCA concentration in The Ordinary Niacinamide 10% + Zinc 1% Serum is not stated. The 1% commonly seen in similar formulas is a widely cited figure, not confirmed here.
- •The Ordinary Niacinamide 10% + Zinc 1% Serum identification as The Ordinary Niacinamide 10% + Zinc 1% is an inference based on matching INCI order and ingredients, not confirmed.
- •Phospholipid and beta-glucan positions in Paula's Choice 10% Niacinamide Booster suggest low concentrations; barrier benefit may be modest.
- •Chlorphenesin in The Ordinary Niacinamide 10% + Zinc 1% Serum combined with phenoxyethanol is a common dual-preservative system but has higher reported sensitivity rates than single preservatives.
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
- Oily and combination skin seeking oil control
- Those who want a no-frills, high-potency niacinamide serum
- Budget-conscious skincare users
- People targeting enlarged pores and textural irregularities
- Users building ingredient-focused routines
Key Ingredients
Niacinamide (10%), Ascorbyl Glucoside (Vitamin C), Licorice Root Extract
Niacinamide (10%), Zinc PCA (1%)
Product Composition
15% similarity (5 ingredients in common)
Only in Paula's Choice (22)▾
Only in The Ordinary (6)▾
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.
Many users with oily skin report significant oil control and fewer breakouts. High repurchase rate in this demographic.
Commonly reported issue. Users recommend applying to damp skin or mixing with a hydrating serum to improve layering.
The formula can feel sticky, especially if too much is applied. Most users adapt application technique over time.
Some users report initial breakouts. Unclear whether this is purging, sensitivity, or coincidence. Most who push through report improvement.
Almost universally praised for price-to-performance ratio. Common comment: 'can't believe this costs $6.'
Which Should You Buy?
The Ordinary Niacinamide 10% + Zinc 1% Serum offers great value at a lower price point. Paula's Choice 10% Niacinamide Booster may be worth the premium if you want Niacinamide (10%).
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