Isntree Hyper Niacinamide 20 Serum
By Nur → Last verified 9/29/2026
Price checked 9/29/2026
List price $18.30. Price-checked 2026-09-29.
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What we found
Based on how this product compares to others in the serums category, cross-referenced against retailer listings and market data.
Strengths
- + 20% niacinamide is a high-strength concentration -- noticeably stronger than most niacinamide serums
Worth knowing
- - High-strength niacinamide can cause flushing or irritation in sensitive skin -- best introduced gradually
Key ingredients
These are the ingredients Isntree highlights for this product, cross-checked against general dermatological and cosmetic-chemistry sources, not a full INCI list.
Fragrance: confirmed fragrance-free.
| Ingredient | What it is | What it does for skin |
|---|---|---|
| Niacinamide | A form of vitamin B3, one of the most studied ingredients in cosmetic dermatology. | Strengthens the skin barrier by boosting ceramide production, helps even out tone by limiting pigment transfer to skin cells, and can reduce the look of enlarged pores. |
| Arbutin | A brightening compound derived from plants like bearberry. | Inhibits the enzyme that triggers pigment production, gradually helping fade dark spots; works more slowly than stronger brighteners, generally with less irritation. |
| Sodium hyaluronate | The salt form of hyaluronic acid, commonly used for its water solubility and stability in formulas; molecular weight varies by product rather than being uniformly smaller. | Draws and holds moisture the same way hyaluronic acid does; how easily it absorbs depends on the specific molecular weight used, which formulas don't always disclose. |
| Hyaluronic acid | A humectant naturally found in skin, capable of holding many times its weight in water. | Draws moisture into the skin's surface, helping it look and feel plumper and more hydrated. |
| Adenosine | A compound naturally present in skin cells, used in skincare as an anti-aging active. | Recognized by South Korea's MFDS as a functional anti-wrinkle ingredient at 0.04% concentration, based on clinical studies showing measurable fine-line improvement; a real but modest effect, not a retinoid substitute. |
What the brand says
Isntree's own marketing claims, not our own findings.
- Combining 20% niacinamide with zinc PCA and arbutin for brightening benefits, plus ten types of hyaluronic acid for a burst of moisture
- A sebum-control serum that contains 20% Niacinamide to reduce the appearance of fine lines and wrinkles
Research-Based
Our assessment comes from pricing, ingredients, and published information, not personal use, the same standard we apply across the site. This product hasn't been hands-on tested yet. See our Methodology for what that distinction means.
Price history
Current price is the lowest we've recorded so far.
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Frequently asked
How much does Isntree Hyper Niacinamide 20 Serum cost per mL?
$0.60 per mL (currently $11.90 for 20 mL).
Has Isntree Hyper Niacinamide 20 Serum been hands-on tested?
Not yet. Our assessment for this product comes from pricing, ingredients, and published information, not personal use, the same standard we apply across the site. See our Methodology for what that distinction means.
What are the key ingredients in Isntree Hyper Niacinamide 20 Serum?
The ingredients Isntree highlights for this product include Niacinamide, Arbutin, Sodium hyaluronate, Hyaluronic acid, Adenosine.
Sources
Pricing and availability for this product were verified against the following retailer listings.