• Dr. Althea 15% Niacinamide Purity Serum 30ml glass bottle, box that glass bottle comes in at the centre and texture shot in the top left corner
  • niacinamide 15% purity serum bottle with clear serum texture on a clean white background. promotional graphic highlighting a high-content niacinamide formula to help reduce dark spots and hyperpigmentation, improve skin texture and tone, and minimise the appearance of enlarged pores.
  • close-up of 15% niacinamide purity serum being dispensed onto the back of a hand. promotional image demonstrating the lightweight serum texture while highlighting a formula designed to brighten skin, refine the appearance of pores, regulate excess oil and sebum, and improve overall skin texture.
  • niacinamide 15% ingredient graphic featuring translucent serum textures on a clean white background. highlights niacinamide 15%, zinc pca and melacut complex to help regulate excess sebum, soothe the skin, improve overall skin tone and texture, and support a balanced, radiant complexion
  • 15% niacinamide purity serum bottles displayed on a clean white background. promotional graphic highlighting a high-strength niacinamide formula with zinc pca and melacut complex to brighten skin, refine the appearance of pores, regulate excess oil and sebum, soothe the skin, and improve overall skin texture.
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Dr. Althea

Dr. Althea 15% Niacinamide Purity Serum 30ml

£15.99
£19.99
£15.99
Tax included. Shipping calculated at checkout.

The Dr. Althea 15% Niacinamide Purity Serum is a high-strength brightening serum formulated to improve uneven skin tone, minimise the appearance of pores, and help balance excess oil. Featuring an effective 15% concentration of niacinamide, this lightweight, fast-absorbing formula targets dullness, blemishes, and congestion while supporting a smoother, more refined complexion.

Enriched with Zinc PCA and the exclusive MELACUT Complex, the serum helps soothe irritation, maintain hydration, and promote healthier-looking skin. Its non-sticky texture absorbs quickly, making it suitable for daily use and all skin types, including sensitive skin.

Key Benefits

  • Brightens uneven skin tone: 15% niacinamide helps improve the appearance of dark spots, post-blemish marks, and dullness
  • Minimises the look of pores: Supports smoother, more refined-looking skin texture
  • Controls excess oil: Zinc PCA helps regulate sebum production for a balanced complexion
  • Helps reduce blemishes: Assists in managing congestion and improving overall skin clarity
  • Soothes and calms: MELACUT Complex helps comfort irritated skin and reduce visible redness
  • Hydrates without heaviness: Lightweight formula delivers moisture without a greasy or sticky finish
  • Supports healthier-looking skin: Helps improve overall skin tone, texture, and radiance
  • Suitable for sensitive skin: Gentle formula free from artificial colours and artificial fragrances

Key Ingredients

15% Niacinamide

A multi-benefit skincare ingredient that helps visibly brighten the complexion, improve the appearance of enlarged pores, balance oil production, and support smoother-looking skin.

Zinc PCA

A naturally derived moisturising ingredient that helps regulate excess sebum, maintain hydration, and support clearer, healthier-looking skin.

MELACUT Complex

An exclusive brightening and soothing complex featuring:

  • Portulaca Oleracea Extract
  • Grape Seed Extract
  • Saururus Chinensis Extract
  • Rice Ferment Filtrate

Together, these ingredients help enhance radiance, improve skin texture, provide antioxidant support, and calm visible irritation.

How to Use

After cleansing and toning, apply an appropriate amount of serum evenly to the face. Gently pat into the skin until fully absorbed. Follow with moisturiser. Use morning and evening, and apply SPF during the day when using brightening products.

Ingredients

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

Our AI Assistant may occasionally make mistakes or provide incomplete information. For order-specific enquiries or important decisions, we recommend contacting our Customer Care team for confirmation.

Advisory Information

We do our best to ensure that product information is accurate, however manufacturers may alter their ingredients without our knowledge. We strongly advise that you always read labels, warnings, and directions before using or consuming a product and not exclusively rely on the information presented on our site.

If you have severe sensitivities or allergies, always contact the manufacturer directly to confirm the latest ingredients. We cannot be held responsible for the accuracy of ingredient or nutritional information we provide nor liable for any adverse reactions caused by the products we sell.

We are continuously in the process of updating ingredient information, so if you notice any discrepancies between the ingredients listed on our website and those that are on your package, please contact us.
Shipping & Delivery

Shipping & Delivery Overview

  • Orders are dispatched from our warehouse in London, United Kingdom.
  • Most orders are dispatched within 1–2 working days.
  • During busy periods (such as Black Friday, launches, and Christmas), dispatch may take up to 5 working days.
  • UK standard delivery usually arrives within 2–5 working days after dispatch.
  • International delivery times vary depending on destination and customs processing.
  • Free UK shipping is available on orders over £40.

Please note that delivery estimates begin after your order has been dispatched.


See full Shipping & Delivery Terms
Returns

You can return your order within 14 days of receiving it.

We use a dedicated portal to manage and track returns. Please contact our customer service team to request a returns authorisation number (RAN). Contact us

Please do not send your packages without authorisation as these will be refused.

If you are returning items not due to defect, discrepancy or misdescription, you will be responsible for return postage costs. This will usually be deducted from your purchase refund. 

Items can only be returned for a refund if they are unopened, unused and in a re-saleable condition with all tamper-resistant seals, packaging and any cellophane intact and within 14 days of your receiving your order. 

We do not offer exchanges. You will need to place a new order and return your original for a refund.

See full Returns & Refund Policy
More information View images
Dr. Althea 15% Niacinamide Purity Serum 30ml glass bottle, box that glass bottle comes in at the centre and texture shot in the top left corner
niacinamide 15% purity serum bottle with clear serum texture on a clean white background. promotional graphic highlighting a high-content niacinamide formula to help reduce dark spots and hyperpigmentation, improve skin texture and tone, and minimise the appearance of enlarged pores.
close-up of 15% niacinamide purity serum being dispensed onto the back of a hand. promotional image demonstrating the lightweight serum texture while highlighting a formula designed to brighten skin, refine the appearance of pores, regulate excess oil and sebum, and improve overall skin texture.
niacinamide 15% ingredient graphic featuring translucent serum textures on a clean white background. highlights niacinamide 15%, zinc pca and melacut complex to help regulate excess sebum, soothe the skin, improve overall skin tone and texture, and support a balanced, radiant complexion
15% niacinamide purity serum bottles displayed on a clean white background. promotional graphic highlighting a high-strength niacinamide formula with zinc pca and melacut complex to brighten skin, refine the appearance of pores, regulate excess oil and sebum, soothe the skin, and improve overall skin texture.
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