Isntree Hyper Niacinamide 20 Serum: High-Dose Niacinamide for Serious Concerns

Niacinamide is one of the most-researched skincare actives, typically formulated at 2% to 10%. Isntree's Hyper Niacinamide 20 Serum pushes to 20%, which is an aggressive concentration designed for users with persistent pigmentation, enlarged pores, or texture concerns that haven't responded to lower-dose niacinamide. It's not a beginner product.

At $16.79 for 20ml, the per-ml price is reasonable given the concentration. The small bottle size suggests use as a targeted treatment rather than whole-face daily spread.

What It Does

20% niacinamide addresses pigmentation, oil regulation, pore appearance, and barrier support. At this concentration, results are faster and more dramatic than 5 to 10% formulations, but irritation risk is higher. Use as targeted treatment or buffered with moisturizer.

Who It's For

• Persistent hyperpigmentation: PIH and uneven tone.
• Niacinamide-tolerant skin: Not for beginners.
• Large visible pores: Pore-refining effect.
• Oily skin: Sebum regulation at high dose.
• Corrective routine builders: Serious treatment serum.

Key Specs

• Volume: 20ml
• Price: $16.79
• Hero: 20% niacinamide
• Texture: serum
• Use: daily, targeted or full-face

How to Use

After toner. Apply 2 to 3 drops across face or target areas. Buffer with moisturizer if irritation. Use AM or PM. Always SPF in AM.

FAQ

Is 20% too much?

For sensitive skin, probably. For niacinamide-experienced users, 20% delivers faster results.

Niacinamide flushing?

Some users experience temporary flushing at high doses. Reduce if persistent.

Pair with vitamin C?

Yes, modern formulations layer without issue. Apply separately, not mixed in hand.

Results timeline?

Oil control: 1 to 2 weeks. Pigmentation: 4 to 8 weeks.

Safe during pregnancy?

Niacinamide is pregnancy-compatible.

Related Products

Browse the full Isntree collection or Korean serums.