Is niacinamide 100 mg profitable to sell on Amazon United States?

The niche generates $54K/yr across 20 tracked products. 90-day search growth is +11.6%. Flapen's verdict: Worth a look (53/100).

How competitive is the niacinamide 100 mg niche?

16 brands and 534 sellers compete. The top 5 products take 54% of clicks and top 5 brands hold 65% of demand.

What do buyers complain about in niacinamide 100 mg?

Top complaints mined from reviews: Allergies, Side Effects, Vitamin. The return rate is 0.0%.

When does demand for niacinamide 100 mg peak?

Demand is steady year-round — the busiest month runs 1.3× the quietest.

What does it cost to enter the niacinamide 100 mg niche?

Listings span $5.72–$25.01; the average listing price is $13.80 (sweet spot $15–$100). The average incumbent carries 1,634 reviews — the moat a new listing must climb.

niacinamide 100 mg

Worth a look

Shows low returns (0.0%), but a small market ($54K/yr) keeps it on the watch list.

Returns

Incredible0.0%

return rate — above 5% kills the launch gate

Conversion

Great10.2%

search→purchase rate — share of searches ending in a sale

Brand share

Good65%

top-5 brand share — brands hold most of the demand

Avg price

Good$13.80

avg listing price — sweet spot $15–$100

Competition

Good54%

top-5 click share — leaders hold, buyers still browse

Price range

Good$5.72–$25.01

cheapest to priciest tracked listing — scored on the share inside $15–$100

Review moat

Okay1,633.7

avg incumbent reviews — the moat a new listing must climb

Growth

Okay+11.6%

90-day search growth — must beat 0% to launch

Quality gap

Okay4.5★

avg incumbent rating — lower means beatable quality

Market size

Bad$54K

$54K/yr · 39K searches

According to Flapen's Amazon United States niche tracking, niacinamide 100 mg is a $54K/yr Amazon United States market (39K searches/yr). The top 5 brands hold 65% of demand. Verdict: Worth a look — 53/100.

Data updated Jul 28, 2026 · scored weekly · How we score niches

niacinamide 100 mg market data

Units sold / yr: 4K–5K; avg 100–250/product
Revenue / yr: $55K–$69K; units × avg price
Conversion rate: 10.2%
Avg BSR: #622
Page quality: 0%
Prime: 90%
Sponsored: 60%
Out of stock: 0.0%
Avg brand age: 132 months
Avg seller age: 159 days

Competition & brand share

The top 5 products take 54% of clicks — established leaders, but buyers still shop beyond them.

Brands

16 rising

Sellers

534

Top-5 brand share

65%

Top 20: 100%

Top-5 click share

54%

Top 20: 100%

Open market

30%

Nutricost31%
Source Naturals11%
Swanson10%
Carlyle7%
THORNE6%
Pure Encapsulations6%

Demand & seasonality

Weekly Amazon search volume, last 103 weeks — +11.6% search growth over the last 90 days.

No pronounced peak months · busiest ÷ quietest = 1.3×

Open Trend

Top niacinamide 100 mg search terms

niacin 100mg19K/yr +30.8%9.7% conv.
niacinamide 100 mg8K/yr +9.8%6.3% conv.
niacinamide 250mg6K/yr -11.9%8.1% conv.
niacin 100 mg3K/yr -5.2%11.6% conv.
niacinamide 150 mg2K/yr -17.3%4.2% conv.
vitamin b3 niacinamide 100mg1K/yr -9.5%3.0% conv.

All search terms

Top niacinamide 100 mg products on Amazon

Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 20 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Nutricost Niacin (Vitamin B3) 100mg 240 Capsules with Flushing

Nutricost$11.944.5★2,737 rev

Swanson Niacinamide Vitamin B3 Supplement for Heart-Health-Conscious Adults Supporting Joint Health and Energy Production (250 Capsules 250 mg Each)

Swanson$12.244.5★400 rev

Carlyle Niacin 100mg | 300 Vegetarian Tablets | Non-GMO Gluten Free

Carlyle$10.024.4★297 rev

THORNE - Niacinamide - Non-Flushing Form of Vitamin B3 - Supports Skin Health & Provides Cellular Protection* - Niacin Supplement - Third-Party Certified - Gluten Dairy & Soy-Free - 180 Capsules

THORNE$25.014.6★2,068 rev

Pure Encapsulations Niacinamide | Vitamin B3 Supplement to Support Energy Metabolism Joint Mobility and Metabolic Function* | 90 Capsules

Pure Encapsulations$19.674.6★610 rev

Newest

by launch date

Dr. Berg Highly-Potent Niacin 500 mg Now Only 125 mg per Capsule for Niacin Flush Tolerance Building Gradually Increase to 500mg a Day Vitamin B3 for Heart Brain & Energy Support 100 Capsules

Dr. Berg Nutritionals$19.98294 rev

1y ago

365 by Whole Foods Market Niacin 100 Mg 100 Count

365 by Whole Foods Market$10.5385 rev

2y ago

Dr. Mercola Niacinamide Vitamin B3-50 mg per Tablet - Supports Metabolic Health - Non-Flushing - Mini Tabs - Non-GMO Gluten-Free & Soy-Free - 270 Tablets(90-Day Supply)

Dr. Mercola$24.46447 rev

2y ago

Carlyle Niacin 100mg | 300 Vegetarian Tablets | Non-GMO Gluten Free

Carlyle$10.02297 rev

4y ago

Nutricost Niacin (Vitamin B3) 100mg 240 Capsules with Flushing

Nutricost$11.942,737 rev

5y ago

What buyers say about niacinamide 100 mg

What buyers praise and complain about, mined from review topics.

What buyers love

Quality-Overall24%

“Outstanding, consistent performance”

Advertised Vs Actual Product10%

“As advertised”

Value For Money8%

“Economical”

Vitamin7%

“Good Supplement”

Efficiency6%

“effective”

Heart Health4%

“Lowered my cholesterol”

Dosage4%

“The dosage is fine”

Ease Of Chewing/Swallowing3%

“The capsules are easy to take”

Skin Health3%

“great for your skin”

Ease Of Use3%

“Convenient”

What buyers complain about

Allergies17%

“It was like having an allergic reaction”

Side Effects13%

“Made me nauseous so I couldnt take them”

Vitamin9%

“It's not supplementing the Vitamin”

Dosage6%

“Wild salmon plus 500mg is an overdose situation”

Functionality-Overall4%

“They aren't working”

Heating4%

“Broke out in hives and got flush and very hot”

Itch Relief3%

“Well, for me, I break out into an itch really bad”

Value For Money3%

“A very costly mistake”

Sleep Quality3%

“I am usually always very tired”

Acid Regulator/Stomach Ache Relief3%

“intense stomach pain if you take them on an empty stomach”

Top return reasons

Advertised Vs Actual Product22%

Size-Overall11%

Safety Standards11%

Dosage11%

Heating11%

Functionality-Overall11%

Vitamin11%

Fever Relief11%

Common questions

Is niacinamide 100 mg profitable to sell on Amazon United States?: The niche generates $54K/yr across 20 tracked products. 90-day search growth is +11.6%. Flapen's verdict: Worth a look (53/100).
How competitive is the niacinamide 100 mg niche?: 16 brands and 534 sellers compete. The top 5 products take 54% of clicks and top 5 brands hold 65% of demand.
What do buyers complain about in niacinamide 100 mg?: Top complaints mined from reviews: Allergies, Side Effects, Vitamin. The return rate is 0.0%.
When does demand for niacinamide 100 mg peak?: Demand is steady year-round — the busiest month runs 1.3× the quietest.
What does it cost to enter the niacinamide 100 mg niche?: Listings span $5.72–$25.01; the average listing price is $13.80 (sweet spot $15–$100). The average incumbent carries 1,634 reviews — the moat a new listing must climb.