Niacinamide Serum
Niacinamide Serum
Product Description
Product overview
A lightweight, water-based serum featuring niacinamide (Vitamin B3) to help reduce the appearance of oiliness, minimize pores, and create a more balanced, clearer-looking complexion while soothing redness and hydrating the skin.
Pore Minimizing
Niacinamide helps regulate sebum production and visibly reduces the appearance of enlarged pores over time.
Texture & feel
SENSORYPore Minimizing
Niacinamide helps regulate sebum production and visibly reduces the appearance of enlarged pores over time.
Redness Reducing
Contains soothing ingredients like dipotassium glycyrrhizate from licorice root and bisabolol to calm irritated skin.
Skin Brightening
Helps even out skin tone and reduce the appearance of dark spots and post-acne marks with consistent use.
Barrier Support
Glycerin and aloe vera work together to hydrate and strengthen the skin's natural moisture barrier.
Safety & compatibility
SAFENiacinamide is FDA-approved and considered safe for use during pregnancy and breastfeeding. Contains no retinoids, salicylic acid, or other concerning ingredients.
Contains PEG-40 Hydrogenated Castor Oil which may potentially feed malassezia yeast. Patch test recommended for fungal acne sufferers.
Rated 1/5 on the comedogenic scale. Formula is lightweight and unlikely to clog pores for most skin types.
Fragrance-free, paraben-free, and formulated with soothing ingredients. Low irritation potential according to ingredient analysis.
Ingredient breakdown
INGREDIENTSNiacinamide (Vitamin B3) 4-5%Proven
A multi-tasking powerhouse that helps reduce the appearance of pores, regulate sebum production, even skin tone, reduce redness, and strengthen the skin barrier. Works well for almost all skin types.
- Clinical Evidence: Studies show 2% niacinamide improves skin barrier function; 4-5% concentration helps with acne and sebum control.
- Mechanism: Converts to NAD in the skin, supporting cellular energy and repair processes.
- Results Timeline: Visible improvements typically seen within 4-8 weeks of consistent use.
Glycerin HighProven
One of the most effective humectant ingredients, naturally present in skin. Attracts water to the upper layer of skin, providing deep hydration without greasiness.
- Function: Draws moisture from the environment and deeper skin layers to hydrate the stratum corneum.
- Comedogenic Rating: 0 - Non-comedogenic and suitable for all skin types.
Dipotassium Glycyrrhizate LowProven
Derived from licorice root, this ingredient provides powerful anti-inflammatory and soothing benefits. Also helps regulate sebum production.
- Benefits: Anti-inflammatory, sebum-regulating, and skin-soothing properties.
- Research: Studies show effectiveness in calming redness and irritation.
Aloe Barbadensis Leaf Juice LowTraditional
A classic soothing ingredient traditionally used for treating sunburns and inflammation. Contains natural humectants for hydration.
- Function: Provides soothing, anti-inflammatory, and mild hydrating benefits.
Bisabolol LowProven
A chamomile-derived ingredient known for its gentle, anti-inflammatory, and skin-soothing properties. Excellent for sensitive and reactive skin.
- Benefits: Anti-inflammatory, antibacterial, and wound-healing properties.
- Suitability: Ideal for sensitive and irritation-prone skin.
17 ingredients
Water (Aqua), Glycerin, Niacinamide, PEG-12 Dimethicone, Phenoxyethanol, PPG-26-Buteth-26, Ammonium Acryloyldimethyltaurate/VP Copolymer, PEG-40 Hydrogenated Castor Oil, Dipotassium Glycyrrhizate, Chlorphenesin, Xanthan Gum, Aloe Barbadensis Leaf Juice, Bisabolol, Disodium EDTA, Maltodextrin, Potassium Sorbate, Sodium Benzoate
Where it fits in your routine
ROUTINEApply after cleansing and toning, before heavier creams and moisturizers. Can be used both AM and PM.
How to use
HOW TO USECleanse Your Face
Start with clean, freshly washed skin. Pat dry gently or apply to slightly damp skin for better absorption.
Dispense 2-3 Pumps
Press the pump to dispense a small amount of serum onto your fingertips. A little goes a long way.
Apply & Pat Gently
Smooth the serum over your face and neck, avoiding the eye area. Pat gently to encourage absorption.
Follow With Moisturizer
Wait 30-60 seconds for the serum to absorb, then apply your favorite moisturizer to lock in benefits.
Who is it for?
WHOPerfect for you if:
- You have oily or combination skin with enlarged pores
- You're looking for an affordable, no-frills niacinamide serum
- You want to reduce excess shine and balance oil production
- You're pregnant or breastfeeding and need a safe option
- You prefer fragrance-free, gentle formulations
- You're new to niacinamide and want a moderate concentration
Consider alternatives if:
- You have fungal acne (malassezia) - check ingredients carefully
- You want a higher 10% niacinamide concentration
- You prefer luxury textures and elegant packaging
- You need additional benefits like zinc or hyaluronic acid
- You have very dry skin and need more hydrating ingredients
Skin type compatibility
SKIN TYPESIdeal match! Lightweight formula helps regulate sebum without adding shine. Helps minimize pore appearance.
Balances oily T-zone while being gentle enough for drier areas. Great all-rounder for combination skin.
Good for maintenance and prevention. Helps keep skin balanced and supports overall skin health.
May feel slightly drying on its own. Layer with a hydrating toner and follow with a rich moisturizer.
Fragrance-free with soothing ingredients. The moderate niacinamide concentration is less likely to irritate than 10% formulas.
Non-comedogenic formula helps reduce inflammation and regulate oil. However, those with fungal acne should patch test first.
Results timeline
WEEK 12+Initial Hydration & Comfort
Skin feels more hydrated and comfortable. You may notice a slight reduction in excess shine throughout the day. Some initial stickiness may occur but subsides with continued use.
60% noticed improved skin textureOil Balance & Calmer Skin
Sebum production starts to regulate. Skin appears less shiny and more balanced. Redness and irritation may be visibly reduced. Pores may begin to look less prominent.
70% noticed reduced oilinessVisible Pore Refinement
Noticeable improvement in pore appearance. Skin tone begins to even out. Post-acne marks may start to fade. Overall skin looks clearer and more refined.
75% saw improved pore appearanceCumulative Benefits
Maximum benefits achieved with consistent use. Skin barrier is strengthened. Continued improvement in skin clarity, texture, and tone. Best results with daily AM and PM application.
80% experienced overall skin improvementRatings by platform
75+ REVIEWSPros & cons
BALANCEDPraised
- Excellent value for money (under £5)
- Fragrance-free and gentle formula
- Suitable for pregnancy and breastfeeding
- Vegan and cruelty-free
- Helps reduce oiliness and balance skin
- Contains soothing ingredients like licorice and aloe
- Good starter product for niacinamide beginners
- Works well when paired with Boots Salicylic Acid Serum
Criticized
- Initial stickiness before absorption
- Lower niacinamide concentration than competitors (4-5% vs 10%)
- Pump packaging preferred over dropper by some
- May sting on broken or irritated skin
- Not fully fungal acne safe due to PEG ingredients
- Results may be more subtle compared to higher concentration serums
Budget-friendly alternatives (dupes)
DUPESHigher 10% niacinamide concentration plus zinc for extra oil control. More popular but may irritate sensitive skin. Fungal acne safe formula.
10% niacinamide with 1% hyaluronic acid for added hydration. Better for dry skin types. More elegant texture that absorbs quickly.
Similar formula to The Ordinary at a comparable price point. Good option if availability is an issue with other brands.
10% niacinamide with a smooth, non-pilling texture. Popular alternative with great reviews for sensitive skin compatibility.
Comparison with competitors
SIDE-BY-SIDELa Roche-Posay Pure Niacinamide 10
Storage & shelf life
12 MONTHS12 months after opening. Check the PAO symbol on packaging for exact period.
Store in a cool, dry place away from direct sunlight and heat. No refrigeration required but can extend freshness.
Pump bottle in opaque plastic packaging. Hygienic dispensing prevents contamination.
Yes, 30ml is under the 100ml liquid limit for carry-on luggage. Compact size fits easily in travel bags.
Frequently asked questions
FAQYes, this serum is considered safe for use during pregnancy and breastfeeding. Niacinamide (Vitamin B3) is FDA-approved and has no known risks for pregnant or nursing mothers when used topically. The formula contains no retinoids, salicylic acid, hydroquinone, or chemical sunscreens - ingredients typically avoided during pregnancy. However, always consult with your healthcare provider before starting any new skincare product.
This serum requires caution for those with fungal acne. It contains PEG-40 Hydrogenated Castor Oil, which may potentially feed malassezia yeast according to some analyses. If you have fungal acne, consider The Ordinary Niacinamide 10% + Zinc 1% as a fungal acne safe alternative, or patch test this serum on a small area first before full application.
Niacinamide is generally compatible with most skincare actives. You can use it with retinol (apply niacinamide first, wait, then retinol), hyaluronic acid, and peptides without issue. While older advice suggested avoiding Vitamin C combinations, recent research shows they can be used together safely. For AHA/BHA, you can use them in the same routine - apply acids first, wait for absorption, then apply niacinamide. If you experience irritation, alternate products between AM and PM routines.
This serum works best for oily and combination skin types due to its oil-regulating properties. The lightweight, water-based formula is excellent for those dealing with enlarged pores, excess shine, and mild breakouts. It's also suitable for normal and sensitive skin types. Those with very dry skin may want to pair it with hydrating products or choose a niacinamide serum with added hyaluronic acid like The INKEY List version.
Results vary by individual, but most users notice initial improvements within 2-4 weeks of consistent twice-daily use. Oil regulation and reduced shine are often noticed first (1-2 weeks). Visible pore refinement typically takes 6-8 weeks. For skin tone evening and post-acne mark fading, expect 8-12 weeks of consistent use. Maximum benefits are achieved with continued long-term use.
Apply this serum after cleansing and toning, but before heavier treatments, moisturizers, and sunscreen. The general order is: Cleanser → Toner → This Serum → Other Treatments/Serums → Eye Cream → Moisturizer → Sunscreen (AM only). Apply to slightly damp skin for better absorption. Can be used both morning and evening.
No, this serum has a low comedogenic rating of 1/5, meaning it's unlikely to clog pores for most skin types. The formula is water-based and lightweight. Niacinamide itself is non-comedogenic and actually helps to minimize pore appearance and regulate sebum. However, everyone's skin is different, so if you're prone to breakouts, introduce it gradually and monitor your skin's response.
The serum has a Period After Opening (PAO) of 12 months. This means it should be used within 12 months of first opening for optimal effectiveness and safety. Store in a cool, dry place away from direct sunlight. The pump packaging helps maintain hygiene and extends product freshness compared to dropper bottles. At typical usage (2-3 pumps twice daily), a 30ml bottle should last approximately 2-3 months.
Verdict: Boots Niacinamide Serum is an excellent budget-friendly option for those new to niacinamide or looking for a gentle, pregnancy-safe formula. While the concentration is lower than competitors like The Ordinary (4-5% vs 10%), this makes it ideal for sensitive skin and niacinamide beginners. The fragrance-free formula with added soothing ingredients offers good value at under £5. However, if you want maximum pore-minimizing and oil-control benefits, consider upgrading to a 10% niacinamide formula. Those with fungal acne should opt for The Ordinary instead due to the PEG ingredients in this formula.
Product Overview
Quick product notes are a great way to check if a product is free from commonly avoided ingredients by skincare enthusiasts. These preferences come about for different reasons depending on the ingredient such as personal experiences, sensitivities, health preferences & etc.
Just because a product is not free from a common preference does not mean it's a bad product! You can make a personal decision whether or not you want to use a product that contains these ingredients or not - click the labels of the preference to read more about them.
Quick Product Notes
Ever used a product that promised a certain effect but provided no results? It might not have contained any notable ingredients that could have been responsible for that promised effect. It doesn't matter what the marketing or packaging «promises» it can do, if it doesn't contain anything that can help - then the likelihood of it helping is low.
We help you identify key notable ingredients that have been shown to help with effects such as acne-fighting, brightening, UV-protection, wound healing & anti-aging to help you achieve your skincare goals smarter. Please note that different notable ingredients have varying levels of research behind them, some are extremely well proven yet some have mixed research in their efficacy.
Just because a product doesn't contain any notable ingredients doesn't mean it's bad. And a product with notable ingredients (or even many) doesn't necessarily guarantee the efficacy of the product performing these effects either. There are other factors such as ingredient quality, concentration and formulation that will ultimately determine this.
Be smart and use this as just a starting point for you to make more informed and smarter choices and compare it with reviews to see if the product is right for you
Notable Effects & Ingredients
Why are some products great for some people and horrible for others? Well everyone has different skin types and different reactions to the same ingredients.
We've identified a range of ingredients that are commonly regarded as potentially good or bad for those with Dry, Oily/Acne-Prone or Sensitive skin.
A product that contains good or bad ingredients for your skin type doesn't always flat out make the entire product good or bad for your skin. There are other factors such as ingredient quality, concentration and formulation that will ultimately determine your skins reaction.
One of the best ways to use this section is to troubleshoot products you've had bad experiences with in the past. Check if it contains any of the marked ingredients to point out suspect ingredients to avoid in the future!
Ingredients Related to Skin Types
Ingredient Safety Breakdown refers to the percentage % of ingredients in different risk categories as classified by EWG (Environment Working Group) if they are available. There are almost endless cosmetic ingredients and they are one of the few organisations globally that have assigned ratings to a lot of the more commonly used ingredients which is why we reference them.
EWG is seen by many to be more on the alarmist side in their assignment of health ratings resulting in rating ingredients as riskier than they actually are. We recommend using this a reference point rather than a strict guide of ingredient safety and to always do further research if into ingredients that you may find suspect.
Ingredient Safety Breakdown
Product ingredient list
| EWG | CIR | Ingredient Name & Cosmetic Functions | Notes |
|---|---|---|---|
| 2 |
Glycerin
Solvent, Perfuming, Fragrance, Humectant, Viscosity Decreasing Agent, Hair Conditioning, Skin Protecting, Denaturant, Skin Conditioning
|
Promotes Wound Healing
Hydrating
|
|
| 0 |
PEG-12 Dimethicone
Skin Conditioning
|
|
|
| 4 |
Phenoxyethanol
Fragrance, Preservative
|
|
|
| 2 |
PPG-26-Buteth-26
Skin Conditioning, Surfactant, Fragrance, Emulsifying, Hair Conditioning
|
|
|
| 1 |
Ammonium Acryloyldimethyltaurate/VP Copolymer
Viscosity Controlling
|
|






