TXA Niacinamide 15% Serum vs Red Smoothie Pore-Tightening Serum 30 with Red Collagen, Niacinamide, and Peptides — Ingredient Comparison

medicube

TXA Niacinamide 15% Serum

Serum · 40 ingredients · South Korea

TXA Niacinamide 15% Serum is a high-potency Korean serum formulated with 5% Tranexamic Acid and 10% Niacinamide to brighten dark spots, even skin tone, and deeply hydrate. Medicube's highest TXA concentration for dark spot and acne scar care to make healthy skin barrier and complexion.

Fragrance-free

Arencia

Red Smoothie Pore-Tightening Serum 30 with Red Collagen, Niacinamide, and Peptides

Serum · 30 ingredients

A pore-tightening serum formulated for dry, combination, and normal skin types concerned with enlarged pores and loss of firmness. A Red Collagen Complex supports elasticity for smoother-looking skin, while niacinamide works to visibly minimize pores and refine uneven texture. Peptides complement the formula by supporting collagen production for a firmer, more lifted appearance.

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How these two interact

No conflicts — safe to layer

Both are Serum products.

At a glance

Fragrance-free

—

Price

$19.12

$2.88 less

$22

Key ingredients

Niacinamide

Strengthens the barrier, controls oil, and fades dark spots — gentle and plays well with almost everything.

Hyaluronic Acid

Holds water in the skin for instant plumping and hydration.

Peptides

Amino-acid messengers that signal collagen production for firmer, smoother skin.

Glycerin

The workhorse humectant — simple, effective, and exceptionally well-tolerated.

Tranexamic Acid

Targets stubborn melasma at its inflammatory root — gentle and well-tolerated.

Alpha Arbutin

A safe, stable brightener without the risks of hydroquinone.

Adenosine

A cell-signaling ingredient that smooths fine lines and supports firmer skin.

Panthenol (B5)

A barrier-repairing humectant that hydrates and calms — a sensitive-skin staple.

Rosa Centifolia Flower Oil

A nourishing plant oil that softens skin and helps seal in moisture.

Ferulic Acid

An antioxidant that stabilizes vitamins C and E and roughly doubles their sun defense.

Glutathione

An antioxidant brightener that supports a more even tone.

Niacinamide

Strengthens the barrier, controls oil, and fades dark spots — gentle and plays well with almost everything.

Peptides

Amino-acid messengers that signal collagen production for firmer, smoother skin.

Glycerin

The workhorse humectant — simple, effective, and exceptionally well-tolerated.

Alpha Arbutin

A safe, stable brightener without the risks of hydroquinone.

Adenosine

A cell-signaling ingredient that smooths fine lines and supports firmer skin.

Hyaluronic Acid

Holds water in the skin for instant plumping and hydration.

Ferulic Acid

An antioxidant that stabilizes vitamins C and E and roughly doubles their sun defense.

What it targets

Hydration

Barrier

Brightening

Anti-aging

Firmness

Pores

Oil control

Soothing

Antioxidant

Healing