Compare Products: Clinical Niacinamide 20% Treatment vs Niacinamide 10% + Zinc 1% Serum

Paula's Choice

Clinical Niacinamide 20% Treatment

Mid-range20%
$55 / 20ml — $2.75/ml
The Ordinary

Niacinamide 10% + Zinc 1% Serum

Budget10%
$6 / 30ml — $0.20/ml

Who It's Designed For

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
The Ordinary
  • 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

Paula's Choice

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

The Ordinary

Niacinamide (10%), Zinc PCA (1%)

Product Composition

16% similarity (5 ingredients in common)

Shared Ingredients
water (aqua)niacinamidepentylene glycolxanthan gumphenoxyethanol
Only in Paula's Choice (20)
butylene glycolglycerinacetyl glucosamineascorbyl glucosideglycyrrhiza glabra (licorice) root extractspiraea ulmaria (meadowsweet) extractportulaca oleracea (purslane) extractcamellia japonica flower extractepigallocatechin gallateboerhavia diffusa root extractcamellia sinensis (green tea) leaf extractallantoinlecithinpullulanpanthenolsilicasclerotium gumpropanediolsodium phytateethylhexylglycerin
Only in The Ordinary (6)
zinc pcadimethyl isosorbidetamarindus indica seed gumisoceteth-20ethoxydiglycolchlorphenesin

User Feedback Patterns

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.

The Ordinary
Holy grail for oily skin

Many users with oily skin report significant oil control and fewer breakouts. High repurchase rate in this demographic.

Pilling under other products

Commonly reported issue. Users recommend applying to damp skin or mixing with a hydrating serum to improve layering.

Tacky texture

The formula can feel sticky, especially if too much is applied. Most users adapt application technique over time.

Purging or breakouts

Some users report initial breakouts. Unclear whether this is purging, sensitivity, or coincidence. Most who push through report improvement.

Value for money

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 Clinical Niacinamide 20% Treatment may be worth the premium if you want Niacinamide (20%).

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