Paula's Choice Clinical 20% Niacinamide Face Serum, 0.67 oz — Tightens Pores & Smooths Texture

Paula's Choice CLINICAL 20% Niacinamide Vitamin B3 Face Serum is a concentrated treatment designed to visibly tighten enlarged pores and smooth rough, clogged texture for a clearer, more refined complexion.

This high-strength vitamin B3 serum delivers a potent 20% niacinamide concentration formulated to target signs of aging and sun-related pore stretching. Lightweight and fragrance-free, the formula also includes brightening botanicals to help even tone and reduce the appearance of blotchy discoloration while improving overall pore function. It’s crafted for people who want a science-driven solution that focuses on refining texture, minimizing congested bumps, and revealing more luminous skin.

How quickly will I notice smaller-looking pores?

Results vary by individual, but many users see improved pore definition and smoother texture within a few weeks of regular use. Consistent nightly or twice-daily application helps the niacinamide act on pore walls and surface congestion to create a visibly tighter look over time.

• Apply after cleansing and before heavier creams for best absorption.
• Visible improvements often appear within 2–8 weeks with continued use.
• Works on pores stretched by aging or sun exposure, not instant shrinking.

Can this serum improve uneven skin tone and blotchiness?

The formula combines niacinamide with licorice-derived brightening ingredients to target blotchy discoloration and promote a more luminous complexion. While not a lightening treatment, it helps fade uneven tone and supports a clearer, more uniform surface over several weeks.

• Targets post-sun damage and age-related discoloration.
• Licorice root extract assists in softening visible dark patches.
• Regular use helps reveal a brighter, more even-looking appearance.

Will this serum help with hard, clogged bumps and rough texture?

Yes — the concentrated niacinamide works to improve pore function and reduce congested, hard bumps that cause an orange-peel texture. By supporting clearer pores and reducing buildup, skin looks smoother and more refined.

• Aims at hard, clogged bumps rather than only surface flakiness.
• Improves texture over multiple applications as pores clear.
• Complements exfoliating routines for enhanced smoothing effects.

How strong is a 20% niacinamide concentration and is it safe?

A 20% niacinamide level is an advanced-strength concentration designed for targeted correction of visible aging and pore concerns. Paula's Choice formulates it to be effective while keeping the serum fragrance-free and suitable for most skin types, though patch testing is recommended if you have very sensitive skin.

• Advanced dose intended for noticeable results on pore and texture issues.
• Fragrance-free, non-fluffy formula focused on evidence-backed ingredients.
• Patch test new high-concentration products and adjust frequency if irritation occurs.

Who is this for: This serum is aimed at people with enlarged, aged, or sun-damaged pores, those who struggle with hard, congested bumps, and anyone seeking a potent, no-fragrance treatment to even skin tone and refine texture. It’s ideal for users comfortable with higher-strength actives and who want a clinically oriented product to pair with their existing skincare routine.

Ingredients

Water (Aqua), Niacinamide, Pentylene Glycol, Butylene Glycol, Glycerin, Acetyl Glucosamine, Ascorbyl Glucoside, Glycyrrhiza Glabra (Licorice) Root Extract, Spiraea Ulmaria (Meadowsweet) Extract, Portulaca Oleracea (Purslane) Extract, Camellia Japonica Flower Extract, Epigallocatechin Gallate, Boerhavia Diffusa Root Extract, Camellia Sinensis (Green Tea) Leaf Extract, Allantoin, Lecithin, Pullulan, Panthenol, Silica, Xanthan Gum, Sclerotium Gum, Propanediol, Sodium Phytate, Phenoxyethanol, Ethylhexylglycerin