The Ordinary Niacinamide

The Ordinary Niacinamide reviews by the moderators of the Facebook Group and the Deciem Addicts. Did you know that The Ordinary Niacinamide is the best selling product from The Ordinary?

NEW PRODUCT ALERT! The Ordinary 100% Niacinamide Powder

The Ordinary Niacinamide Reviews
84% of the Deciem Addicts love Niacinamide. Niacinamide was voted the best product by The Deciem Addicts and is Deciem´s best seller. Niacinamide is now available in 60ml.

What is The Ordinary Niacinamide and what does it do?

Deciem´s simple explanation: Niacinamide, also known as Vitamin B3, is a high-strength vitamin and mineral formula that helps to support barrier function while reducing the appearance of visible shine and signs of congestion.

This ingredient has also been shown to have a brightening effect on the skin, making it a truly multifunctional ingredient that can be easily incorporated into any routine. We have included Niacinamide at a high 10% concentration within this formula. ⁣⁣⁣Additionally, this formula includes a 1% concentration of Zinc PCA, which works to support the skin’s function as a protective barrier. ⁣

78% of the Deciem Addicts on Instagram say it has improved their skin.

Niacinamide Targets

  • Brightens skin
  • Regulates Sebum
  • Minimizes Pores
  • Signs of congestion
  • Support the skin’s function as a protective barrier

How and when do I use Niacinamide?

You can use Niacinamide in the morning and evening. Niacinamide is a water-based product and would be applied as one of your first layers, before anhydrous, oils, and creams. You can read all about layering The Ordinary here.

Some Examples of where Niacinamide will fit into your routine. Find these personalised The Ordinary routines here.

Squalane Cleanser
Hyaluronic Acid
Ascorbyl Tetraisopalmitate
Natural Moisturising Factors
Squalane Cleanser
Glycolic Acid 7% Toning Solution
Alpha Arbutin 2% + HA
Rose Hip Seed Oil 
Squalane Cleanser
Borage Seed Oil
Azelaic Acid
These are just examples of some routines

Which products can and cannot be used with Niacinamide?

Deciem does not recommend applying Niacinamide in the same routine as pure Vitamin C as Niacinamide has the capacity to affect the integrity of Vitamin C, potentially reducing its efficacy.

PURE VITAMIN C (conflicts) – Do not use with Niacinamide

VITAMIN C DERIVATIVES (No Conflicts except Niacinamide Powder)

The Ordinary Niacinamide Reviews

There are also some amazing before and after photos in the Facebook Group. Please always patch test this product. Whilst this is the best selling The Ordinary product there are also many people who really do not get on with this, so please do read all the reviews.

Read more reviews by the #deciemaddicts on Instagram here.

Jen @jamjarskingeek Niacinamide – my absolute favorite product from The Ordinary. It’s a multi-purpose gem that supports my skin barrier, helps with pigmentation, and keeps my oily skin in check. I wouldn’t be without it and love the new large size

I reach for The Ordinary Niacinamide whenever my skin is playing up. It goes so well with many other Deciem products.


Changed my life.

Less redness and balanced sebum production.

Love this. Has been great for my rosacea

Yes 💯 best thing I´ve ever used.

My skin has gone from ‘dry’ to ‘normal’ even with prescription strength retin A . It’s helped to keep my skin moisturized! I’m obsessed with this product and use night and day.

I’ve been using The Ordinary’s Niacinamide for 2 yrs now. My skin loves it. I have oily skin prone to breakouts and this makes my skin look amazing.

Niacinamide has tightened my pores and helped with blemishes.


These faqs have been asked and answered by Deciem on social media.

Can I use Niacinamide + Alpha Arbutin + Glycolic Acid 7% Toning Solution + AHA and BHA peeling solution in the same routine? Which ones are essential for blemishes and dark spots? Niacinamide and Alpha Arbutin are great products to target your concerns. You may use your products in the same routine. However, we do not suggest the use of both AHA + BHA Peeling Solution and Glycolic Acid in the same routine.

Which products would you recommend for oily and acne-prone skin? We suggest the use of The Ordinary Niacinamide 10% + Zinc 1%. As this is a high-strength vitamin and mineral formula that visibly targets the look of blemishes and signs of congestion. We recommend avoiding unprotected solar exposure, gradually incorporating one new product into your regimen at a time, and applying test patches first to see what works best for your skin. Just as a note – none of our products can be considered medical treatments for acne, so we suggest consulting with your physician to see what may work best for your skin.

I have Hyaluronic Acid, Niacinamide and Buffet+Copper. What order should I apply these? Buffet + Copper Peptides > Hyaluronic Acid > Niacinamide.


Can we use Niacinamide with Alpha Arbutin. Yes, you may! We suggest using the Alpha Arbutin first.

Should I use Niacinamide if I have sensitive skin? This solution is suitable for all skin types. Apply patch tests prior to a full face application.

Would I apply The Ordinary Niacinamide before or after The Ordinary Buffet.  You may wish to apply The Ordinary Niacinamide 10% + Zinc 1% after The Ordinary “Buffet”.

Can I use The Ordinary Niacinamide after the Glycolic Acid 7% toning solution and before Azelaic Acid Suspension 10%? I’ve been ending my regimen with the Natural Moisturizing Factors + HA. Yes, you may!

More FAQs

Is there anything we should avoid layering this with? The Ordinary Niacinamide 10% + Zinc 1% is compatible with most products! Please note that Niacinamide cannot be used alongside L-Ascorbic Acid and Ethylated Ascorbic Acid as Niacinamide can affect the integrity of these forms of Vitamin C.

Would I use the Niacinamide serum before 100% organic cold-pressed rosehip seed oil? You can apply The Ordinary Niacinamide 10% + Zinc 1% first then The Ordinary 100% Organic Cold-Pressed Rose Hip Seed Oil with no conflicts!

Is this the best vitamin B product you have to complement a skincare routine with vitamin A and C use? I’m using Retin-A and a vitamin C serum. It is difficult for us to comment on the pairing of our products with those of other brands and/or prescription medications. We recommend consulting with your doctor/dermatologist, gradually incorporating one new product into your regimen at a time, and applying test patches first to see what works best for your skin. Niacinamide should not be used with pure forms of Vitamin C.

Can Niacinamide be combined with Vitamin C in the morning and glycolic acid or retinoids in the evening? Niacinamide is safe to use alongside Glycolic Acid and/or Retinoids but it should only be used with Vitamin C derivatives.

Can I use Mandelic Acid with Niacinamide? Niacinamide may be used with Mandelic Acid

Final Thoughts

80% of the Deciem Addicts will be repurchasing Niacinamide.

The Ordinary´s Niacinamide was voted the best product out of all The Ordinary products in the Facebook Group and it´s The Ordinary´s bestselling product according to Nicola Kilner CEO of Deciem. 84% of the Deciem Addicts love it. 78% of the Deciem Addicts say it has improved their skin and 80% will be repurchasing it.

Deciem Niacinamide Products