ProtoClinical k-beauty Isntree C-Niacin Toning Ampoule 50ml single upright ampoule bottle centered on a white background
ProtoClinical k-beauty Isntree C-Niacin Toning Ampoule 50ml single upright ampoule bottle centered on a white background
Isntree

Isntree C-Niacin Toning Ampoule 50ml

$9.17
Brightens dull uneven skin Helps revive a tired complexion Supports a clearer glow Adds lightweight hydration Improves overall tone clarity
Whitening ampoule that raises skin clearly and transparently with natural vitamin ingredients.Vitamin toning cream helps your dark, dark skin shine!
A glow-boosting ampoule that helps tired, uneven skin look fresher and more luminous.
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Vitamin toning ampoule Niacin brightening support Daily glow ampoule Lightweight radiance care
niacinamide vitamin complex
Isntree C-Niacin Toning Ampoule 50ml
Isntree C-Niacin Toning Ampoule 50ml Default Title
$9.17
Clinically proven actives Dermatologist tested 100% authentic Korean Cruelty-free
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niacinamide and vitamin complex

Active Complex is the primary active in this formulation. It targets dehydration through a mechanism that compounds with daily use, delivering clarifies skin for a visibly cleaner, more translucent look with consistent application.

Active Complex
supports this formula's targeted action
The texture

Lightweight, concentrated ampoule

Whitening ampoule that raises skin clearly and transparently with natural vitamin ingredients.

Vitamin toning cream helps your dark, dark skin shine!


All Skin Types dullness uneven tone dark spots dehydration
Hover the swatch: it ripples like water

How to use

1

After toner, apply 2 to 3 drops over the face and neck.

2

Pat in gently until absorbed.

3

Follow with moisturizer.

4

Use morning or night, and wear sunscreen during the day.

Full transparency

Ingredients

A vitamin-focused toning ampoule with niacin support to brighten dull skin and improve visible tone clarity.

Brightening formulas work best when they improve both moisture balance and the visible evenness of the complexion, which is the logic behind this ampoule. Niacin-focused and vitamin-rich ingredients are widely used because they help the skin look clearer, more luminous, and better supported over time. Niacinamide, in particular, is valued for visible tone-evening support and for helping the barrier stay comfortable, which matters when skin is dull or uneven because it is also dehydrated. Vitamin-rich ingredients add antioxidant support, helping the complexion appear fresher and less flat. In a lightweight ampoule texture, those benefits can be layered easily under moisturizer or sunscreen without feeling heavy. That keeps the product practical for everyday use, which is important because gentle, consistent brightening usually works better than aggressive routines that are hard to maintain. In cosmetic terms, the goal here is not dramatic resurfacing, but clearer-looking tone, better hydration, and a healthier glow that comes from smoother, more comfortable skin.

The detail

Specs & details

FormatConcentrated ampoule
SizeDefault Title
Skin typesAll Skin Types
Country of originSouth Korea
Before you add to cart

Questions & answers

After cleansing and toning, before moisturizer. Ampoules deliver concentrated actives most effectively on freshly prepped skin.
Yes, ampoules are concentrated enough to serve as your primary active step. Follow with moisturizer to seal in benefits.
Most users notice initial improvement within 2 to 4 weeks. For full benefits like clarifies skin for a visibly cleaner, more translucent look, allow 6 to 8 weeks of consistent use.
Your skin begins adjusting. You may notice improved hydration and comfort before more visible changes like texture refinement become apparent.
Yes, this formula is developed to be compatible with all skin types dealing with dehydration. If you have very reactive skin, patch test on the inner arm before full application.
The formula is designed to be well-tolerated. For pregnancy-specific concerns, consult your healthcare provider. For sensitive skin, patch test before full application.
Active Complex is the primary active that delivers the core benefits of this formula. Consistent use over time maximizes results.
Check the INCI list for the most accurate information on fragrance components. The formula is developed for minimal irritation potential.
Store in a cool, dry place away from direct sunlight. Use within 12 months of opening for optimal freshness and efficacy.
Ampoules typically have a higher concentration of actives than serums. They are designed as intensive treatment boosters, often used during periods when skin needs extra support.
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About the brand

OriginSeoul, KR
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