What Should a Pore Toner Actually Contain? Niacinamide, Ceramides & Plant Actives, Explained

2% Niacinamide — Sebum Control & Pore Refinement

Let's start with the ingredient most people recognize.

Niacinamide is a water-soluble form of Vitamin B3. It's been studied extensively for its effects on skin tone, sebum, and pore appearance — and unlike a lot of ingredients that get overhyped, the mechanism behind it is well understood.

Here's how it works on sebum: Niacinamide helps regulate the transfer of lipids from skin cells (keratinocytes) to the surface. When sebum production is excessive, pores appear stretched because the oil buildup puts pressure on the follicle walls. By modulating that lipid transfer pathway, niacinamide can help reduce the amount of sebum reaching the surface — which over time supports a clearer, less congested pore environment.

Clinical data from the Paparecipe Eggplant Clearing Pore Refine Toner, tested at the Korea Institute of Dermatological Sciences (21 participants, June 24 – July 22, 2025), showed a 48.14% reduction in sebum after regular use. That number doesn't come from niacinamide alone — but it starts here.

On the question of pore refining ingredients specifically: niacinamide also helps strengthen the skin barrier around the pore opening, which contributes to the "tightened" appearance people notice after consistent use. It doesn't close a pore — pores aren't doors. But it changes the conditions that make them look enlarged in the first place.

At 2%, this formula stays in a range that's effective without the risk of sensitization that higher concentrations can trigger for reactive skin types.

Pore Laser™ — A Patented Complex Built for Pore Tightening

This is where the formula goes beyond standard niacinamide-ceramide territory.

Pore Laser™ is a patented pore care complex built from three plant-derived extracts:

• Jasminium Officinale (Jasmine) Extract — Traditionally used for its toning and conditioning properties, jasmine extract helps support the look of firmer, more refined skin texture.

• Salix Alba (Willow) Bark Extract — A naturally sourced source of salicin (the natural precursor to salicylic acid), willow bark helps maintain clear pore channels without the abrasiveness of synthetic acids.

• Solanum Melongena (Eggplant) Extract — The signature ingredient of this line. Eggplant extract contains Lupeol, a naturally derived triterpene compound known for its calming and antioxidant properties, which creates the starting conditions for pore refinement.

These three work as a system. The patent isn't for any individual extract — it's for the specific combination and how it targets the appearance of enlarged and lax-looking pores. The clinical results speak to this directly:

Pore Improvement — 4-Week Clinical Test (Korea Institute of Dermatological Sciences, 21 participants, June–July 2025)

These aren't dramatic reductions. But pore refinement is cumulative — and 19.75% less pore area after four weeks of a toner step is a meaningful result in that context.

This is what a plant actives pore toner formula looks like when the plant actives are actually doing specific, documented work.

Ceramide 4 Complex — Rebuilding the Skin Barrier From Within

Here's a connection most pore-focused content skips.

Pore appearance is directly linked to skin barrier health. When the barrier is compromised — whether from over-cleansing, environmental stress, or a dehydration cycle — the skin loses its structural firmness. The soft tissue around the pore loosens. And loosened skin makes pores look more visible, regardless of how much sebum is present.

That's why this formula includes not one ceramide type, but four.

• Ceramide EOP — An ultra-long-chain ceramide that forms the outermost layer of the stratum corneum. It contributes to the water-retention seal on the skin's surface.

• Ceramide NS — Works deeper in the lipid bilayer, supporting structural integrity between skin cells. Plays a role in reducing transepidermal water loss (TEWL).

• Ceramide NP — One of the most abundant naturally occurring ceramides in human skin. Helps maintain membrane fluidity and supports the barrier against environmental irritants.

• Ceramide AP — Supports skin conditioning and helps maintain the layered lipid structure that holds the barrier together.

Using all four matters because each type occupies a slightly different role in the lipid bilayer architecture. A single ceramide can fill one gap. Four ceramides rebuild the structure.

The clinical moisture result: 148.51% increase in hydration after regular use — measured in the same Korea Institute of Dermatological Sciences study. That's not a surface-level hydration spike. That's what happens when the barrier is functional enough to actually hold water.

This is why a niacinamide ceramide toner combination makes more sense than either ingredient alone. Niacinamide addresses sebum and pore appearance. Ceramides address the structural environment those pores exist within.

Phyto-amino Acid Complex — Skin Texture & Suppleness

Amino acids are the building blocks of protein — and keratin, the primary structural protein in skin, is built from them.

This complex is anchored by Moringa Oleifera Seed Extract (also called drumstick seed extract), a plant-derived source naturally rich in oleic acid and a broad spectrum of amino acids. The extract itself has known antioxidant and skin-conditioning properties, and it acts as the carrier for the amino acid complex that follows.

The full amino acid profile in this formula:

Glycine, Serine, Alanine, Arginine, Proline, Histidine, Aspartic Acid, Valine, Isoleucine, Leucine, Phenylalanine, Methionine, Ornithine, Taurine, Glutamic Acid

That's 15 individual amino acids alongside the Moringa base. Each contributes differently:

• Glycine and Proline are the primary structural amino acids for collagen-adjacent proteins in skin

• Serine and Alanine are natural moisturizing factors (NMFs) — found naturally in the stratum corneum, they hold water within skin cells

• Arginine plays a role in wound healing and barrier support signaling

• Taurine has antioxidant properties and helps stabilize cellular membranes under stress

The effect of this complex is subtler than niacinamide or ceramides, but it shows up in skin texture. Skin that's well-supplied with its own NMFs feels smoother, looks more refined, and holds hydration more evenly. Over time, that matters for whether pores appear compressed or open.

This is part of what "what a pore toner should contain" means when you move beyond the headline ingredients. Supporting actors doing real work.

Solanum Melongena (Eggplant) Fruit Extract — 5,100ppm

The product is named after this ingredient. So let's give it the space it deserves.

Eggplant extract is the oil and moisture balancing starting point for this formula. At 5,100ppm, it's present at a concentration high enough to make a structural contribution — not just a label claim.

The active within eggplant extract most relevant to pore care is Lupeol, a pentacyclic triterpene. Lupeol has documented antioxidant properties and is associated with calming effects on skin in response to environmental irritants. It also plays a role in regulating the skin environment that influences sebum behavior.

The way to think about eggplant extract in this context: before you address sebum control and pore tightening, you need to address the oil-moisture imbalance that drives both. Eggplant extract doesn't jump straight to tightening. It helps establish the conditions — a calmer, more balanced skin environment — that make pore refinement sustainable rather than short-lived.

That's why it comes first in the mechanism sequence. And it's why the concentration matters: 5,100ppm is enough to establish that starting condition, not merely gesture at it.

What the Rest of the Ingredient List Is Doing

The headline ingredients get the attention. But a formula is only as reliable as its full ingredient architecture. Here's what the rest of the list contributes.

Derma-Clear — Patented Pore Care Complex

Ginkgo Biloba Leaf Extract + Artemisia Annua Extract + Ficus Carica (Fig) Fruit Extract

Derma-Clear is a second patented complex in this formula. Each of these plant-derived extracts contributes antioxidant and skin-clarifying support, and the complex has been formulated specifically around pore care. The patent relates to a demodex mite care application — the formula includes a patent-related ingredient for that purpose. The expression "removes mites" isn't an accurate characterization of what a cosmetic formula does; what the patent indicates is that this specific combination of ingredients was developed and registered in relation to that concern.

Fig extract, notably, is also a source of enzymes that support gentle surface renewal, while ginkgo and artemisia contribute antioxidant coverage.

Anti-Oxipol — Environmental Defense Complex

Ophiopogon Japonicus Root Extract + Chrysanthemum Morifolium Flower Extract

These two plant-derived extracts form the Anti-Oxipol complex, focused on environmental stress defense. Ophiopogon (lilyturf root) is traditionally used in Korean herbal medicine and has known antioxidant and moisture-support properties. Chrysanthemum flower extract brings additional antioxidant activity and calming support for skin exposed to pollution and environmental stressors.

In an urban skincare context — where pores collect particulate matter and environmental debris — this kind of defense layer is not decorative. It supports the condition of the pore environment by reducing the oxidative load on skin throughout the day.

Adenosine — The Anti-Aging Signal Molecule

Adenosine is a naturally occurring purine nucleoside. In cosmetics, it's best known for its ability to support skin's appearance of firmness and smoothness. It interacts with cellular receptors involved in skin renewal signaling, contributing to improved skin texture over time. It's also one of the gentler ingredients in the actives category — effective without the irritation profile that some other renewal agents carry.

Allantoin — Calm, Condition, Recover

Allantoin is a skin conditioner with a well-established safety and efficacy profile. It promotes skin cell turnover, supports the skin's natural recovery process, and has soothing properties that help counterbalance any mild tingling some actives can cause. It's a quiet ingredient — not a headline — but formulas without it tend to feel less comfortable on application.

Trehalose — A Sugar That Holds Moisture

Trehalose is a disaccharide (a type of naturally occurring sugar) found in plants and organisms that survive drought conditions. In skincare, it functions as a humectant — attracting and retaining moisture in the skin. What distinguishes trehalose from basic glycerin humectants is its ability to form a protective layer around water molecules, which helps maintain hydration even when the surrounding environment is dry. Relevant for anyone whose skin tends to feel tight by midday.

Psidium Guajava (Guava) Leaf Extract & Hedera Helix (Ivy) Leaf Extract

These two botanical extracts contribute antioxidant support and pore clarification. Guava leaf extract is a polyphenol-rich source with documented skin-brightening and antioxidant properties. Ivy leaf extract has been used in skin care for its astringent and skin-refining effects, supporting a more even-looking complexion over time. Both are naturally sourced and fragrance-free in their function here — they're not fragrance components, they're functional extracts.

The Humectant Base — Glycerin, Butylene Glycol, Propanediol, 1,2-Hexanediol, Methylpropanediol

Every ingredient here plays a hydration role:

• Glycerin — a classic humectant, draws moisture into the stratum corneum

• Butylene Glycol — a dual-function ingredient: humectant and texture enhancer, helps other actives penetrate evenly

• Propanediol — a plant-derived glycol alternative; humectant function with a lighter skin feel than propylene glycol

• 1,2-Hexanediol — multifunctional: humectant, skin conditioner, and contributes to formula preservation stability

• Methylpropanediol — enhances skin feel and supports the delivery of other actives across the skin surface

Emulsion & Texture System

C12-14 Alketh-12, Triethylhexanoin, Polyglyceryl-10 Myristate, Diphenyl Dimethicone, Acrylates/C10-30 Alkyl Acrylate Crosspolymer

This is what makes the formula milky rather than watery. The combination of a mild surfactant (C12-14 Alketh-12), a lightweight emollient (Triethylhexanoin), a plant-derived emulsifier (Polyglyceryl-10 Myristate), a silicone slip agent (Diphenyl Dimethicone), and a polymeric thickener (Acrylates crosspolymer) creates the signature texture: lightweight enough to absorb without residue, rich enough to deliver oil-phase actives without heaviness.

This is the special emulsification technology that stabilizes nano-scale oil droplets in the formula — which is how a toner can feel water-light on application but still deliver meaningful lipid support to the skin.

Formula Stabilizers

• Tromethamine — pH adjuster. Keeps the formula at its target pH of 5.5 ± 1.00, which is close to the skin's natural pH. Important because pH affects how well active ingredients like niacinamide work, and it affects the skin's acid mantle stability.

• Disodium EDTA — chelating agent. Binds to trace metal ions in water that can degrade formula quality over time.

• Ethylhexylglycerin — a multifunctional ingredient used as a skin conditioner and preservation booster. Helps maintain formula integrity without relying on harsher preservative systems.

Every ingredient in this formula has a reason to be there. That's what it looks like when a formula is built around function rather than marketing.

How These Ingredients Work on Your Skin — Step by Step

The list above is useful. But the real argument for this formula is how the ingredients work together — not in isolation.

Step 1: Immediately after application — the humectant base pulls water in.
Glycerin, butylene glycol, trehalose, and propanediol begin binding atmospheric moisture and redirecting it into the upper layers of the skin. The emulsion system spreads the formula evenly without dragging or residue.

Step 2: Niacinamide and Pore Laser™ begin their work simultaneously.
Niacinamide starts moderating the sebum transfer pathway. Pore Laser™ — with jasmine, willow bark, and eggplant extracts — signals pore-tightening support at the follicle level. These two mechanisms reinforce each other: one addresses excess oil, the other addresses the structural appearance of the pore opening.

Step 3: Ceramide 4 Complex begins barrier reconstruction.
As the formula absorbs, EOP, NS, NP, and AP ceramides integrate into the lipid bilayer. Transepidermal water loss starts to decrease. The skin's structural framework around pores firms up gradually — which is the mechanism behind the visual pore-tightening effect users notice over weeks, not just hours.

Step 4: The amino acid complex conditions skin texture from within.
Serine, alanine, and the natural moisturizing factors in the amino acid complex maintain intracellular hydration. Glycine and proline support the structural integrity of the surrounding tissue. Taurine provides oxidative protection at the cellular level.

Step 5: Plant extract complexes defend against environmental stress.
Ginkgo, artemisia, guava, ivy, ophiopogon, and chrysanthemum extracts — along with the eggplant's Lupeol — create a layered antioxidant and clarifying environment that protects the progress made by Steps 1–4. Without this layer, environmental oxidative stress would erode the benefits faster.

Sound like a lot? It is. That's the point. A pore toner that actually delivers isn't doing one thing — it's doing five things at the same time, in sequence, every time you apply it.

This Toner Might Be Right for You If...

✅ Your pores look more visible than you'd like, especially around the nose and cheeks

✅ Your skin runs oily in some areas and tight in others — the classic combination dehydration pattern

✅ You've tried fragrance-free toners before and found them either too watery or too stripping

✅ You want to know exactly what's in your skincare and why — not just what the label promises

✅ You're looking for a toner you can use daily without worrying about sensitivity or over-exfoliation

✅ You prefer plant-derived, naturally sourced ingredients where they can do the job well

FAQ

Q1. How often should I use a pore toner?

Daily use is appropriate for this type of formula. Because it's fragrance-free, dermatologically tested with a 0.00 irritation index (31 participants), and pH-balanced at 5.5 ± 1.00, it's designed for daily application without the cumulative irritation risk you'd see with acid-based toners. Morning and evening use is supported — though once daily is a perfectly reasonable starting point.

Q2. Can I use niacinamide every day?

Yes, at 2%. The irritation concerns associated with niacinamide (flushing, tingling) are typically documented at concentrations of 5% and above. At 2%, daily use is well within what sensitized and combination skin types can tolerate without issue. If you're layering niacinamide from multiple products, just track your total daily intake to stay in a comfortable range.

Q3. Is this toner suitable for sensitive skin?

The formula completed a primary skin irritation test (31 participants) with a 0.00 irritation index — placing it in the low-irritation classification. It's fragrance-free, free from harsh alcohols, and formulated at a skin-pH-compatible 5.5. That said, sensitive skin varies. A patch test before full-face use is always a reasonable first step with any new product.

Q4. How long until I see pore improvement?

The clinical data reflects a 4-week use period (June 24 – July 22, 2025, Korea Institute of Dermatological Sciences). That's a realistic timeline for structural pore improvement — the kind driven by barrier repair and consistent sebum regulation, not just the temporary tightening effect you might feel right after application. Expect clearer texture within the first 1–2 weeks, with visible pore refinement building over 4+ weeks of regular use.

Q5. Can I layer this with other actives?

Yes, with some consideration for order. Because this formula contains niacinamide (a water-soluble active), it pairs well with serums that follow, including peptide serums, hyaluronic acid serums, and gentle vitamin C derivatives. Apply this toner first — it functions as the hydration and pore-prep layer. If you use a leave-on exfoliant (AHA or BHA), apply that separately on alternate evenings rather than stacking with this toner on the same application to avoid over-layering actives on reactive nights.

Continue Your Pore Care Journey

While a pore toner addresses sebum and hydration at the surface, what happens when your skin barrier is already compromised — and hydration won't stay in? Learn the three essential ingredients that help repair a damaged barrier from the inside out.
👉 Skin Barrier Repair Products | 3 Essential Ingredients to Look for in a Hydrating Face Mask

Your toner works best when your skin starts from a place of balance. If your skin is still cycling through the oily-yet-dehydrated pattern, the issue may run deeper than your toner step. Discover how PDRN skincare can help break the cycle at the barrier level.
👉 PDRN Skincare | 3 Ways to Repair a Damaged Skin Barrier