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DR.ALTHEA 15% Niacinamide Purity Serum

DR.ALTHEA 15% Niacinamide Purity Serum

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Regular price £16.97 GBP
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Product details

Brand
DR.ALTHEA
Size
30ml
Item form
Serum
Active ingredients
Niacinamide (15%), Zinc PCA, Portulaca Oleracea Extract, Vitis Vinifera (Grape) Seed Extract, Saururus Chinensis Extract, Rice Ferment Filtrate (Sake)
When to use
AM & PM
£16.97
In stock
Return within 61 days of receipt — hassle-free refund Returnable within 61 days of receiptItem can be returned in its original condition for a full refund within 61 days of receipt.Read full return policy
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  • Fragrance Free
  • Alcohol Free
  • Vegan
  • Cruelty Free
  • Made in Korea

Description

DR.ALTHEA 15% Niacinamide Purity Serum is made for skin that feels oily, uneven, and tired of visible pores. This lightweight serum carries a high 15% concentration of niacinamide. It is one of the most studied ingredients for brightening a dull tone. Zinc PCA works alongside the niacinamide to help calm oily patches and refine the look of pores. The texture is thin and fast absorbing, so it never leaves a sticky film behind. A blend of soothing plant extracts, including Portulaca Oleracea and grape seed, supports calmer looking skin as you use it. DR.ALTHEA formulates this serum as vegan, with EWG Green Grade ingredients throughout. It fits easily into a simple routine, whether your skin leans oily, combination, or just wants a brighter start. Calm, clear feeling skin can start with one simple step.

What This Serum Does for Your Skin

Pores that look larger than you'd like. Dark spots that linger after a blemish has faded. An oily T-zone by midday, even when your skin feels dry at the edges. DR.ALTHEA built this serum around one goal. Calmer, more even looking skin, without a heavy or sticky feel.

At the centre of the formula sits niacinamide, held at a high 15% concentration. Niacinamide is a form of vitamin B3. It helps visibly brighten uneven tone and refine the look of pores. Zinc PCA works alongside it. It helps regulate excess oil, so shine feels more balanced through the day.

The serum is lightweight from the first pat. It absorbs quickly and sits comfortably under the rest of your routine. It never leaves a sticky film behind. Dullness, oiliness, and visible pores often show up together. This serum gives each concern proper attention in one simple step, rather than three. It's built as a single, focused addition to your existing routine.

The Key Ingredients Inside

Niacinamide at 15% is the headline active. It is chosen for its ability to visibly brighten dull, uneven skin. It also helps refine the look of enlarged pores. Niacinamide is one of the most studied ingredients in skincare. It's a big part of why DR.ALTHEA leans on it so heavily here, at a genuinely high 15% strength.

Zinc PCA supports the niacinamide. It helps calm oily, blemish-prone areas and mattify shine. Portulaca Oleracea Extract adds a soothing, antioxidant layer. It helps calmer looking skin feel more comfortable day to day. Grape seed extract brings further antioxidant support, helping protect skin as the day goes on.

Saururus Chinensis Extract and rice ferment filtrate round out the formula. Both are chosen for their role in brightening dull tone. They also support a more even, refined texture. Trehalose and glycerin sit quietly in the background too. They help the serum feel comfortable rather than drying as the actives get to work.

How Your Skin Responds Over Time

With regular use, many people notice their skin feels more balanced day to day. Shine can feel less obvious by the afternoon. Niacinamide is known for gradually helping even out the look of skin tone. Dark spots and redness can appear to fade into the background over time, rather than standing out.

Pores often look more refined with consistent use. This is partly down to Zinc PCA keeping oil production in check. Less oil sitting on the surface can mean pores appear smaller. This is most noticeable across the nose and chin, where oil tends to gather first.

Texture can feel smoother too, as the botanical extracts support a calmer, more even surface. Everyone's skin responds at its own pace, so results will vary. What stays consistent from day one is the lightweight, fast absorbing feel. The serum never gets in the way of the rest of your routine, whatever else you layer around it.

How to Layer It in Your Routine

Apply this serum after cleansing and toning, while skin is still slightly damp. A few drops spread evenly across the face is enough. Pat gently rather than rubbing. This gives the serum time to absorb properly before the next step. Give it a moment to settle in fully before moving on.

Use it morning and evening as the treatment step in your routine. Apply before moisturiser, and before sunscreen in the morning. If brightening dull tone is your main concern, try layering two to three light applications instead of one heavier one. Let each layer sink in before adding the next.

This serum plays well with most routines, including exfoliating acids and vitamin C. It's worth introducing new actives slowly if your skin is sensitive. Keep the bottle away from direct sunlight and bathroom heat where possible. Always follow with a moisturiser to lock in hydration, and never skip sunscreen the next morning.

Who This Serum Is For

This serum suits anyone dealing with visible pores or an uneven tone. It also suits skin that turns oily by midday, particularly combination or oily skin types. The lightweight, non-sticky texture makes it a comfortable pick for anyone who finds heavier serums too rich.

It also suits anyone who wants a simple routine built around one well-studied active. If you've tried niacinamide before at a lower strength, this 15% formula gives you room to step up. It's a good next move for skin that's ready for more.

DR.ALTHEA formulates this serum as vegan, with EWG Green Grade ingredients throughout. That matters if those values guide your skincare choices. It's a straightforward way to add a proven active into your routine, without overcomplicating your shelf.

If your skin has been asking for more balance and more clarity, this serum listens. Add it to your basket today, and let it become the next simple step in your routine.


Disclaimer: Packaging and product images may be updated by the manufacturer without notice. The item you receive may differ in appearance from the images shown, and colours may vary slightly between screens.

How to Use

Cleanse and tone first, while your skin is still slightly damp. Take two to three drops of the serum and smooth it evenly over your face and neck. Pat gently until it absorbs, rather than rubbing it in. Use this serum both morning and evening as your treatment step. Apply it after toner and before moisturiser. In the morning, always follow with sunscreen, since niacinamide works best inside a protected routine. If brightening dull tone is your main focus, try layering two to three light applications instead of one heavier layer. Let each layer settle before adding the next. Keep the bottle upright, away from direct sunlight and bathroom heat. Close the cap fully after each use to help the formula stay stable for longer. This serum layers well with a gentle cleanser and a simple moisturiser. It also works alongside exfoliating acids and vitamin C. Introduce new actives slowly if your skin is sensitive. A calming toner beforehand can help prepare your skin for the actives that follow.

Ingredients

Ingredients List

Water, Pentylene Glycol, Niacinamide, Butylene Glycol, 1,2-Hexanediol, Glycerin, Trehalose, Polyglyceryl-10 Laurate, Xanthan Gum, Ethylhexylglycerin, Disodium EDTA, Rosmarinus Officinalis (Rosemary) Leaf Oil, Zinc PCA, Melaleuca Alternifolia (Tea Tree) Leaf Oil, Portulaca Oleracea Extract, Vitis Vinifera (Grape) Seed Extract, Saururus Chinensis Extract, Rice Ferment Filtrate (Sake), Tocopherol, Limonene, Linalool

Key Ingredients

Niacinamide (15%) - visibly brightens uneven tone and refines the look of pores Zinc PCA - helps regulate excess oil and calm oily, blemish-prone areas Portulaca Oleracea Extract - soothing antioxidant that helps calmer looking skin feel comfortable Vitis Vinifera (Grape) Seed Extract - antioxidant support that helps protect skin day to day Saururus Chinensis Extract - supports brightening and a more even, refined texture Rice Ferment Filtrate (Sake) - traditional Korean ferment that supports tone and texture

Disclaimer: Ingredients may be updated by the manufacturer without notice. For the most current and accurate list, always refer to the product packaging.

Complete Your Calm Ritual

Better together

Complete Ritual

£43.41 £41.24

BUILD YOUR CALM RITUAL

Routine Recommendation

Step 1
DR.ALTHEA Pore Refresh Grinding Cleansing Balm

Cleanser

DR.ALTHEA Pore Refresh Grinding Cleansing Balm

£12.47

Step 2
DR.ALTHEA Rapid Hypochlorous Acid Rescue Mist

Toner

DR.ALTHEA Rapid Hypochlorous Acid Rescue Mist

£16.97

Step 3
DR.ALTHEA 15% Niacinamide Purity Serum

Serum

DR.ALTHEA 15% Niacinamide Purity Serum

£16.97

Step 4
DR.ALTHEA 345 Relief Cream

Cream

DR.ALTHEA 345 Relief Cream

£18.97

Step 5
DR.ALTHEA Aqua Glowing Sunscreen

Sunscreen

DR.ALTHEA Aqua Glowing Sunscreen

£14.97


15% niacinamide · zinc PCA · vegan

One step for pores, shine and uneven tone.

A high 15% concentration of niacinamide with zinc PCA alongside it, in a thin, fast-absorbing serum. Built for skin that leans oily, looks uneven and is tired of visible pores.

Oily and combination skinVegan formulaEWG Green Grade ingredients

What does it do?

Three concerns that tend to arrive together.

Dullness, oiliness and visible pores usually show up at once, so this treats them in one step rather than three.

Tone, visibly evened

Niacinamide at 15% is the headline active, chosen for how well studied it is at brightening the look of dull, uneven skin.

Shine kept in check

Zinc PCA works alongside the niacinamide to help regulate excess oil, so shine feels more balanced through the day.

Calm alongside the actives

Portulaca oleracea and grape seed extract add antioxidant, soothing support, with trehalose and glycerin keeping the feel comfortable rather than drying.

What's in it?

A genuinely high strength.

15% is the whole point — the rest of the formula exists to make that wearable.

15%

Niacinamide

A form of vitamin B3 held at high strength, to visibly brighten uneven tone and refine the look of enlarged pores.

01

Zinc PCA

The oil-control partner, helping calm blemish-prone areas and mattify shine so the niacinamide is not working alone.

02

Brightening support

Saururus chinensis extract and rice ferment filtrate round out the formula, both chosen for dull tone and a more refined look.

A thin water-clear niacinamide serum patted into the cheek and jaw with two fingertips

How does it feel?

Thin, quick, and gone.

Lightweight from the first pat, absorbing quickly and sitting comfortably under the rest of your routine without leaving a sticky film.

TextureThin serum
FeelAbsorbs fast
FinishNo sticky film

Choose your Dr.Althea serum

Which serum is your skin asking for?

Three serums, three different jobs — pick by the concern that bothers you most.

Compare DR.ALTHEA 15% Niacinamide Purity Serum DR.ALTHEA 15% Niacinamide Purity SerumYou’re viewing DR.ALTHEA 0.1% Gentle Retinol Serum DR.ALTHEA 0.1% Gentle Retinol SerumView product DR.ALTHEA 345 Relief Serum DR.ALTHEA 345 Relief SerumView product BEAUTY OF JOSEON Glow Deep Serum: Rice + Alpha Arbutin BEAUTY OF JOSEON Glow Deep Serum: Rice + Alpha ArbutinView product Beauty of Joseon Glow Serum: Propolis + Niacinamide Beauty of Joseon Glow Serum: Propolis + NiacinamideView product PURITO SEOUL Wonder Releaf Centella Serum Unscented PURITO SEOUL Wonder Releaf Centella Serum UnscentedView product
Best forOily, uneven skin tired of visible poresReactive skin wanting a first retinol without the flakingSensitive, acne-prone skin dealing with redness and tightnessBrightens dark spots and evens skin toneCalms, brightens and balances oilSoothes visible redness, hydrates and supports skin resilience
Formula focus15% niacinamide with zinc PCA0.1% retinol with bakuchiol, panthenol and allantoinBirch sap, tea tree leaf water, niacinamide and ceramide NPRice bran water, alpha-arbutin, niacinamidePropolis extract 60%, niacinamide 2%, betaine salicylate 0.5%Centella asiatica extract, niacinamide, peptides
ExperienceThin, fast-absorbing, no sticky filmGel-like serum that absorbs fastMilky watery gel that sinks in within secondsLightLight, non-stickyFeather-light
Routine roleMorning and nightEvenings, built up slowlyDaily baseline step, morning and nightAM & PM, after cleansing, before moisturiserAM & PM, serum stepAM & PM, after toner, before moisturiser

Is it for you?

Made for skin that shines by lunchtime.

If this is your skin most days, this is the one step to add.

  • An oily T-zone by midday, even when the edges feel dry
  • Pores that look larger than you would like
  • Marks that linger after a blemish has faded
  • You want one focused addition rather than three new products

Give oily, uneven skin one honest step.

DR.ALTHEA 15% Niacinamide Purity Serum £16.97