Know About the Best Niacinamide

Niacinamide is now considered one of the most popular skincare ingredients of recent times- and for good reason. Unlike many actives, which mainly address one problem, niacinamide is able to address various skin-related issues such as the skin barrier, hydration, uneven pigmentation, excess oil and visible signs of aging in appearance.

However, choosing the best niacinamide is not only about picking the ingredient with the highest value on the bottle. A 10% serum is not necessarily better than one 5% in concentration, and plant-based products do not always mean they are more humane and effective than niacinamide produced in a laboratory. What really matters is the identity of the ingredient, its concentration, its formulation, compatibility with the skin and regular use of niacinamide products.

So, what niacinamide really means, how it works, how to use it and what concentration is needed?

What Is Niacinamide? 

Niacinamide, often known as nicotinamide, is a variant of vitamin B3. Niacinamide is known to be a water-soluble vitamin compound that plays an important role in certain cell functions, most importantly as a part of NAD+ and NADP+ the coenzymes connected with processes of energy metabolism, redox reactions and cellular stress responses.

While the terms are sometimes used interchangeably within the cosmetics market, niacinamide and niacin are different entities.

In simple words, niacin refers to nicotinic acid while niacinamide pertains to nicotinamide, which is the amide variant of vitamin B3. The two substances belong to the same vitamin B3 family but have different chemical formulas and biomedical effects, the flushing side effect linked to oral administration of nicotinic acid should not be also applied to topical use of niacinamide.

Niacinamide occurs naturally as one of the components in vitamin B3 foods and biological systems but it is advisable to use purified chemical form of niacinamide created by manufacturing processes.

When Was Niacinamide Discovered? A Brief History 

The story of niacinamide can be associated with the discovery of vitamin B3 and the disease known as pellagra.

Symptoms of pellagra include skin disease, diarrhea, and changes in the nervous system. In the early 20th century, physician Joseph Goldberger conducted a study and proved that pellagra had to do with a nutritional deficiency rather than an infection.

By the 1930s the connection became clearer. In 1937, Conrad Elvehjem and his team isolated the factor that helps prevent pellagra from developing and showed that nicotinic acid and nicotinic acid amine can treat black tongue disease in dogs. Further studies have connected the two substances to humans and pellagra.

This history is important since it demonstrates that niacinamide has not been patented as a recent cosmetic invention. Its biological aspect was known from nutrition science years before it was introduced as a skin care ingredient.

Further studies focused on the effects of niacinamide on skin barrier, pigmentation inflammation, production of sebum, and visible aging have led to the development of niacinamide as a topical solution for dermatology and cosmetics. Therefore, it would be wrong to state that a particular year was the time of niacinamide discovery in skincare.

Chemical Structure of Niacinamide: How Does It Help the Skin? 

Niacinamide is formally called nicotinamide, which is a form of nicotinic acid. The molecular formula of niacinamide is C₆H₆N₂O.

Niacinamide is water-soluble and participates in biological processes involving NAD+ and NADP+, which are essential for energy generation and redox reactions in cells. According to the scientific studies, it is likely that these biochemical pathways can clarify how niacinamide influences cellular stress response, inflammation, and skin maintenance.

However, what does the chemical nature of niacinamide imply for your skin?

Skin Barrier Support 

The outer layer of the skin works on the assistance of certain lipids, like ceramides, fatty acids, and cholesterol. 

Lab-based and topical research studies have proved that niacinamide has a positive effect on ceramide formation.

Exclusively topical applications of this substance have been linked to reduced loss of water through the outer layer of skin.

This way, a stronger skin barrier helps retain more moisture and protect the skin from harmful outside effects.

Hydration 

Niacinamide works differently than hyaluronic acid and glycerin when it comes to providing moisture. Its contribution to moisture is closely related to how it functions as a barrier. 

Because niacinamide is associated with dermal lipids and reduces water evaporation, its formulation can increase skin hydration. Clinical studies that used niacinamide-based moisturizers observed lower rates of transepidermal water loss and improvement in the measures of hydration. 

Pigmentation

Among the interesting work mechanisms of niacinamide is pigmentation. 

Niacinamide does not simply state that it halts the production of melanin in the body. Studies show that niacinamide may disrupt the process of moving melanosomes from melanocytes to keratinocytes which are the cells covering the epidermis. 

In research experiments, niacinamide did not affect tyrosinase function in melanocytes but still managed to block the transfer of melanosomes. Clinical studies also found reductions in the appearance of facial hyperpigmentation with topical niacinamide. 

Sebum 

People who are worried about oily skin may benefit from using niacinamide.

In a clinical trial that involved Japanese participants, topical niacinamide was able to lower sebum excretion rates after two and four weeks of use, and another cohort of participants showed lowered levels of sebum in their skin after six weeks. Furthermore, the results of the studies were different, meaning that niacinamide cannot be definitely regarded as a treatment for controlling sebum production.

Inflammation and Stress

Studies show that niacinamide can affect some inflammatory pathways and cellular stress. However, these mechanisms are unique and therefore researchers do not consider that niacinamide has only one molecular target that is responsible for all its skin-mending properties.

What Does Niacinamide Do for the Skin? 

Niacinamide can provide several cosmetic advantages when used correctly:

• Assists skin barrier

• Promotes hydration

• Alleviates the appearance of uneven pigmentation

• Improves uneven skin tone

• Regulates excess sebum

• Benefits the skin care routine for acne-prone skin

• Reduces redness and blotchiness

• Enhances skin texture

• Eliminates fine lines and wrinkles

• Supports the biological processes responsible for cellular protection.

The strongest arguments are related to improvements related to appearance rather than asserting that niacinamide can treat skin problems.

An example is a double-blind, randomized split-face trial, including 50 women, that demonstrates the effectiveness of applying 5% niacinamide twice a day for 12 weeks. The study confirmed that the skin texture of women included in the study improved, including hyperpigmentation, the fine lines and wrinkles that appeared, and the level of redness.

However, it does not indicate that all 5% niacinamide formulations will produce similar results because a particular formulation, population, and application schedule were used during the study.

What Percentage of Niacinamide Is Best? 

One of the most asked questions about niacinamide is: What percentage of niacinamide works best for the face?

There is no one-size-fits-all answer. Niacinamide products come in the form of different concentrations ranging from approximately 2% to 10% or above. However, the concentration alone does not determine the efficacy of niacinamide.

2% Niacinamide

Lower doses can provide benefits when the main purpose is either maintaining barrier functions or dealing with excess oil, especially if used with a good moisturizer.

Several studies have looked at the efficacy of 2% niacinamide products for regulation of sebum production and dry skin conditions.

3-5% Niacinamide

The 3-5% range was studied in a number of clinical studies related to a variety of aesthetic problems. Specifically, research on 5% niacinamide was important for recovery from visible aging symptoms. Thus, a randomized controlled split-face trial demonstrated improvements in wrinkles, hyperpigmented spots, texture and skin redness after treatment.

10% Niacinamide

The presence of twice the amount of niacinamide in a 10% formula does not directly mean that the 10% formula is better in quality or efficacy compared to a 5% formula.

Although higher potency is suitable for specific formulations as well as particular consumers, it could also lead to irritation in people with certain skin concerns.

That said, a beginner in this regard can utilize a formula with moderate potency and have some positive results in skin barrier support, moisture retention, and gradual improvement of uneven skin tones.

The best concentration of niacinamide refers to the following:

• Skin type

• Skin concern

• General formula

• Potency of other active ingredients in the product

• Frequency of use

• Individual tolerance

• Duration of use

In skincare, more is not equivalent to better.

What Ingredients Work Well With Niacinamide? 

Niacinamide has a high multifunctionality level and is accepted to be added to any cosmetics regimen. 

Niacinamide + Hyaluronic Acid 

This combination is very effective for people with dry skin because hyaluronic acid works by drawing and holding the moisture while the niacinamide acts as a skin barrier supporter. 

The two ingredients can work together to ensure effective skin hydration. 

Niacinamide + Vitamin C 

Niacinamide and Vitamin C are largely thought to be incompatible, but this is due to past concerns related to chemical formulation and product stability. 

The formulations of modern cosmetics can contain both substances, however, vitamin C formulas are complicated and ascorbic acid can be sensitive to it. 

Niacinamide + Retinoids 

Niacinamide and retinoids can work well together in skincare regimens focused on anti-aging as well as correcting uneven skin texture and skin pigmentations.

Nevertheless, it is worth noting that retinoids can lead to dry and irritated skin especially during the initial few weeks of using it. The properties of niacinamide related to support of the skin barrier might be considered here since niacinamide would still have the ability to help with using retinoid without causing irritation.

Niacinamide + ceramides

This combination is quite useful when it comes to skincare products formulated with the focus on skin barrier.

Niacinamide + Salicylic Acid 

Oily skin and also that of individuals at a higher risk for acquiring acne can benefit a lot from the use of salicylic acid thanks to its specialized ability to achieve exfoliation in the follicular environment.

Although niacinamide can be added to a routine for treating acne, the risk of dealing with skin irritation after combining too many active ingredients is high. Products should be incorporated gradually instead of assuming more ingredients lead to quick outcomes.

Niacinamide + AHAs

AHAs such as lactic and glycolic acid are more focused on exfoliating the surface of the skin, although niacinamide can still be part of the general regimen. Sensitive individuals need to be cautious when introducing too many potentially irritating substances.

Niacinamide + sunscreen

Sunscreen is not substituted for niacinamide.

If one intends to manage pigmentation or other signs of photoaging, a broad-spectrum sunscreen should also be part of the daily skincare routine.

How to Choose the Best Niacinamide for Your Skin 

Instead of looking for one universally “best” niacinamide serum, choose the formula according to your skin's needs. 

Niacinamide Side Effects: Is It Safe? 

Topical niacinamide is usually known to be well tolerated.

The Cosmetic Ingredient Review conducted a safety assessment for niacinamide and niacin as cosmetic ingredients. The evaluation of the clinical tests showed that niacinamide didn’t cause any stinging at concentrations as high as 10% while the use tests with concentration between 1% and 5% didn’t lead to irritation with niacinamide. 

Nevertheless, some individual products can result in allergic reactions.

The following are the possible symptoms produced in allergic reactions:

• Burning

• Stinging

• Skin redness

• Itching

• Dryness

• Irritation

In some cases, the mild reaction to niacinamide might actually come from another ingredient of the formulation or from the use of several irritating products together.

It’s also necessary to distinguish between niacinamide and nicotinic acid (niacin) because flushing is mostly associated with nicotinic acid rather than niacinamide.

When Should You Use Niacinamide and When Should You See a Dermatologist? 

Niacinamide can be effectively used during any skincare routine--whether complex or straightforward as per the instructions on the products.

The simplified skincare routine consisting of niacinamide could look something like this:

Morning care:

Cleanser – Niacinamide – Moisturizer – Sunscreen.

Evening care:

Cleanser – Niacinamide – Other appropriate treatments – Moisturizer.

People with sensitive skin should exercise caution when trying out niacinamide for the first time and not start using the product for their routine if they have recently introduced multiple active ingredients.

In case any of the following happen, consider consulting a qualified medical professional:

Everything from mild to serious symptoms—such as almost a burning sensation, pain or irritation, swelling, redness, allergies, serious acne, pigmentation, and medical conditions experienced or diagnosed by a qualified medical practitioner.

What Does Research Say About Niacinamide? 

The evidence for niacinamide is broader than many skincare trends, but it is still important to understand its limitations. 

Plant-Based vs Synthetic Niacinamide: Does the Source Matter? 

The phrase “plant-based niacinamide” can be confusing. 

Is niacinamide present in nature in plants? 

Yes, vitamin B3 compounds are naturally available in foods and biological materials; they can come from plant sources as well. However, that does not mean that if a vitamin occurs naturally in some plants, then any product that contains niacinamide contains these particular plants that are a source of vitamin B3.

Is niacinamide from plants the same as the one made synthetically?

No. If the compound is identified chemically as nicotinamide, its identity does not depend on the source - whether derived from a plant or produced in the lab.

Here it is crucial to differentiate between the source and chemical makeup.

Is synthetic niacinamide harmful to the skin?

There is no scientifically confirmed data that lab-produced niacinamide is harmful to the skin.

When evaluating cosmetic ingredients, it is essential to take into account factors such as their identity, purity, concentration, safety, and formulation rather than simply their description as “natural.”

Is it true that niacinamide derived from plants is better or safer?

Not exactly. We cannot claim that niacinamide derived from plants is safer, milder, or more effective than synthetic niacinamide.

When two products have the same niacinamide molecule in the same effective concentration, the origin of the niacinamide is not sufficient to say that one product is better than another.

What about niacinamide made through fermentation?

Manufacturing processes such as fermentation may have been used to produce many cosmetic ingredients but it is important to see the difference between the process of manufacturing and the product being made.

As for consumers, the right questions to ask are:

• What is the final product?

• In what concentration?

• How pure is it?

• What are all the other ingredients?

• Is the product stable?

• Is it suitable for the user’s skin?

• Are there any clinical studies proving the claims about the product?

The INCI list only displays the ingredients used to produce the product while the agricultural or manufacturing origin of the ingredients may remain unknown. Therefore, statements such as “plant-derived niacinamide is superior because it is natural” should be treated with caution unless proven otherwise.

Niacinamide Myths vs Facts 

Niacinamide vs Other Popular Skincare Actives 

There is no single ingredient that is “best” for every skin concern. 

The right choice depends on your skin concern, tolerance and the rest of your routine. 

How to Add Niacinamide to Your Skincare Routine 

A simple beginner routine can be surprisingly effective. 

Morning 

Cleanser → Niacinamide → Moisturizer → Sunscreen 

Evening 

Cleanser → Niacinamide → Treatment, if appropriate → Moisturizer 

If your moisturizer or any other treatment already includes a significant amount of niacinamide, there's no need to buy a separate serum.

If you have recently started using active ingredients in your skincare routine:

• Start with a low level of an active ingredient.

• Introduce only one new product at a time.

• Be sure to use the new active regularly.

• Avoid mixing multiple active ingredients that can cause irritation.

• Always follow the instructions for each new active ingredient.

• Use sunscreen when going out during the day.

What matters the most is consistency.

Niacinamide and Face Care: Where Does It Fit? 

Though niacinamide is an essential component of a thorough Face Care guide, it is just a part of a good skincare routine. 

A skincare regiment should take into account cleansing, hydrating, and providing sun protection from the harmful rays of the sun. 

If you're planning to create a regimen rather than just searching for an ingredient, please refer to the Face Care guide for further details.

Niacinamide for Specific Face Concerns 

Because niacinamide has multiple functions, it can be relevant to several common face-care concerns. 

Skin Brightening 

Niacinamide can be helpful in terms of fading pigmentation and dullness due to its role related to the transfer of melanosomes.

Pigmentation and Dark Spots

Clinical studies show that topical niacinamide reduced the incidence of pigmentation in the form of dark spots. Although the pigmentation can persist, it has many causes, which indicates that it requires treatment that encompasses wider approaches.

Acne and Acne Scars

Niacinamide has properties that help reduce inflammation, which makes it a subject of research concerning topical formulations for acne. Although it can contribute to the routine for treating acne, acne and scars from acne are not the same and might require different treatments.

Oil Control

Research involving 2% of niacinamide demonstrates that it shows a promising function of decreasing facial sebum output.

Dryness & Dullness 

Due to its function in promoting the epidermal barrier, it fits into the skin care regimen for dry or dehydrated skin.

Anti-Aging & Skin Tightening 

Studies involving 5% niacinamide indicated that wrinkles, texture, pigmentation, blotchiness, and elasticity improved after 12 weeks of use. 

The important thing to note about niacinamide is that it can be used not just for one concern as it has many different functions.

Frequently Asked Questions

1. What are the uses of niacinamide?

Niacinamide serves various purposes in skincare including maintaining the skin barrier, moisturizing and balancing skin tone, reducing pigmentation and controlling oiliness, as well as the lines and wrinkles in the skin.

2. What is the best percentage of niacinamide to start with?

For starters, a low percentage of niacinamide such as 2 to 5% is good to get started.

3. Is it too much to use 10% niacinamide in skincare?

Not necessarily, and higher percentage does not mean better. You can generally start at a low percentage of niacinamide to see how your skin reacts.

4. Is it possible to use niacinamide daily?

A lot of people can use niacinamide on a daily basis as long as the instructions are followed properly. It is important to consult texts or other people when first applying niacinamide.

5. Can niacinamide be mixed with vitamin C?

Yes, niacinamide and vitamin C can be combined in the same skincare products.

6. Can niacinamide help with acne?

Niacinamide can help with skin prone to acne. It may help in fighting inflammation of the skin, but it can't be considered to be the solution for acne in all types of cases.

7. Can niacinamide diminish the look of dark spots?

It may help lessen the visibility of hyperpigmentation with time because it lowers melanosome transfer to some extent. It does not rid you of pigmentation for good.

8. Is niacinamide useful for oily skins?

According to medical studies, 2% topical niacinamide is found to reduce the results of facial sebum production.

9. Is niacinamide effective for sensitive skin?

Many people are luckily able to tolerate it. However, sensitive skin can respond differently to any skincare products. It is best to start with lower concentrations and simple formulations.

10. How do niacin and niacinamide differ?

Both niacin and niacinamide are forms of vitamin B3. However, niacin is mainly called nicotinic acid whereas niacinamide is known as nicotinamide. They have different chemical structure and impact.

Conclusion

Niacinamide is a multi-functional form of vitamin B3 that can boost the barrier function, hydration, sebum production, skin pigmentation, and signs of aging. The right niacinamide product may be one that is effective for your skin type, irrespective of the % of niacinamide, and has been properly formulated, but can be used continuously.

Recommended Products by Blue Nectar:

Shubhr Niacinamide Under Eye Serum for Dark Circles (17 Herbs, 30ml)

Related Articles:

Kojic Acid 101: The Ingredient Everyone's Talking About (And What It's Actually Doing to Your Skin)

Bakuchi 101: The Ayurvedic Ingredient Modern Skincare Is Finally Catching Up To

Glycolic Acid, Explained: The Sugarcane-Derived Ingredient Behind Every "Glow" Serum

References:

https://pmc.ncbi.nlm.nih.gov/articles/PMC2756609/

https://my.clevelandclinic.org/health/diseases/23905-pellagra

https://search.library.wisc.edu/digital/AHFUYRV4KUDRHT8T

https://pubchem.ncbi.nlm.nih.gov/compound/Nicotinamide

https://pmc.ncbi.nlm.nih.gov/articles/PMC11047333/

https://pubmed.ncbi.nlm.nih.gov/12100180/

https://pmc.ncbi.nlm.nih.gov/articles/PMC11857428/

https://pmc.ncbi.nlm.nih.gov/articles/PMC2921764/