Is niacin 500mg flush free profitable to sell on Amazon United States?

The niche generates $188K/yr across 19 tracked products. 90-day search growth is +4.5%. Flapen's verdict: Worth a look (53/100).

How competitive is the niacin 500mg flush free niche?

14 brands and 63 sellers compete. The top 5 products take 64% of clicks and top 5 brands hold 79% of demand.

What do buyers complain about in niacin 500mg flush free?

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

When does demand for niacin 500mg flush free peak?

Demand is steady year-round — the busiest month runs 1.2× the quietest.

What does it cost to enter the niacin 500mg flush free niche?

Listings span $6.91–$55.82; the average listing price is $19.27 (sweet spot $15–$100). The average incumbent carries 2,994 reviews — the moat a new listing must climb.

Niacin 500mg Flush Free

Worth a look

Shows low returns (0.0%), but soft demand (+4.5% this quarter) keeps it on the watch list.

Returns

Incredible0.0%

return rate — above 5% kills the launch gate

Conversion

Incredible12.7%

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

Avg price

Great$19.27

avg listing price — sweet spot $15–$100

Price range

Great$6.91–$55.82

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

Brand share

Okay79%

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

Market size

Okay$188K

$188K/yr · 76K searches

Competition

Okay64%

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

Review moat

Okay2,994.37

avg incumbent reviews — the moat a new listing must climb

Quality gap

Okay4.6★

avg incumbent rating — lower means beatable quality

Growth

Okay+4.5%

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

Is niacin 500mg flush free profitable on Amazon?

According to Flapen's Amazon United States niche tracking, niacin 500mg flush free is a $188K/yr Amazon United States market (76K searches/yr). The top 5 brands hold 79% of demand. Verdict: Worth a look — 53/100.

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

niacin 500mg flush free market size & sales

Units sold, revenue, conversion and listing quality across the tracked shelf.

Units sold / yr: 10K–13K; avg 500–750/product
Revenue / yr: $193K–$241K; units × avg price
Conversion rate: 12.7%
Avg BSR: #495
Page quality: 0%
Prime: 95%
Sponsored: 63%
Out of stock: 0.0%
Avg brand age: 111 months
Avg seller age: 166 days

Competition: brands, sellers & click share

The top 5 products take 64% of clicks — established leaders, but buyers still shop beyond them.

Brands

14 falling

Sellers

Top-5 brand share

79%

Top 20: 100%

Top-5 click share

64%

Top 20: 100%

Open market

17%

Nutricost21%
Nature's Bounty20%
NOW Foods17%
Micro Ingredients13%
Life Extension9%
NusaPure4%
Open — no brand owns it (8 brands, 17%)

niacin 500mg flush free demand & seasonality

Weekly Amazon search volume, last 101 weeks — +4.5% search growth over the last 90 days.

No pronounced peak months · busiest ÷ quietest = 1.2×

Open Trend

Top niacin 500mg flush free search terms shoppers use

The exact queries shoppers type, with yearly volume, growth and conversion.

niacin flush free16K/yr -1.1%12.2% conv.
niacin 500mg flush free12K/yr +41.7%6.1% conv.
flush free niacin11K/yr -0.6%14.0% conv.
no flush niacin9K/yr -4.3%13.9% conv.
niacin no flush6K/yr -0.9%11.5% conv.
flush free niacin 500mg capsules5K/yr +6.6%14.7% conv.
niacin flush free 500mg4K/yr +15.4%14.6% conv.
no flush niacin 500mg4K/yr -8.6%18.8% conv.
non flushing niacin3K/yr +4.3%14.4% conv.
inositol hexanicotinate4K/yr -15.8%4.2% conv.

All search terms

Top niacin 500mg flush free products & what they sell for

Every tracked product — its share of the shelf, its review moat, and what it sells for.

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

Top sellers

by 90-day click share

Natures Bounty Niacin 500mg Flush Free Cellular Energy Support Supports Nervous System Health 120 Capsules

Nature's Bounty$15.824.7★11,937 rev

Micro Ingredients Niacin 500mg Per Serving 400 Capsules | Flush Free B3 Vitamins | Double Strength Essential B Vitamin Supplement | Skin Care Health & Energy Support | Non-GMO Gluten Free

Micro Ingredients$14.624.6★537 rev

NOW Foods Supplements Niacin (Vitamin B-3) 500 mg Flush-Free Double Strength Nutritional Health 180 Veg Capsules

NOW Foods$22.744.7★3,422 rev

Nutricost Niacin (Flush-Free) Inositol Hexanicotinate 500mg 120 Capsules

Nutricost$16.734.6★539 rev

Life Extension No Flush Niacin B3 for Heart Health Cholesterol & Energy Support Non-GMO Gluten-Free 100 Capsules

Life Extension$13.894.6★1,006 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

Micro Ingredients Niacin 500mg Per Serving 400 Capsules | Flush Free B3 Vitamins | Double Strength Essential B Vitamin Supplement | Skin Care Health & Energy Support | Non-GMO Gluten Free

Micro Ingredients$14.62537 rev

1y ago

Vitamatic Niacin (Vitamin B3) 500mg 240 Tablets - Non-GMO & Gluten Free

Vitamatic$9.86322 rev

2y ago

Horbaach Niacin 500mg Flush Free | 70 Capsules | Inositol Hexanicotinate

Horbäach$9.44202 rev

3y ago

Nutricost Niacin (Flush-Free) Inositol Hexanicotinate 500mg 120 Capsules

Nutricost$16.73539 rev

5y ago

What reviews say buyers love and hate about niacin 500mg flush free

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

What buyers love

Quality-Overall21%

“Great Product — Love the Glass Bottle”

Value For Money16%

“Reasonable price”

Advertised Vs Actual Product9%

“As advertised”

Vitamin7%

“Good price nice vitamins”

Efficiency6%

“Seems to have a positive effect”

Heart Health5%

“This helped me lower my cholesterol”

Sleep Quality3%

“Im also sleeping much better”

Side Effects3%

“Zero side effects”

Ease Of Chewing/Swallowing2%

“The capsules are easy to take”

Skin Health2%

“great for your skin”

What buyers complain about

Allergies24%

“Allergic Reaction”

Side Effects16%

“Made me nauseous so I couldnt take them”

Functionality-Overall7%

“Not controlled release, causes flushing”

Dosage6%

“First dose, nothing”

Vitamin6%

“This supplement is very expensive”

Skin Health4%

“her face turned bright red”

Heart Health2%

“Because I can not take cholesterol prescription medicine due to allergic reactions my heart Dr”

Advertised Vs Actual Product2%

“False advertising”

Itch Relief2%

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

Ingredients-Overall2%

“This product is horrible”

Top return reasons

Value For Money15%

Vitamin15%

Dosage15%

Advertised Vs Actual Product15%

Fever Relief8%

Heating8%

Safety Standards8%

Size-Overall8%

Side Effects8%

Common niacin 500mg flush free questions

Is niacin 500mg flush free profitable to sell on Amazon United States?: The niche generates $188K/yr across 19 tracked products. 90-day search growth is +4.5%. Flapen's verdict: Worth a look (53/100).
How competitive is the niacin 500mg flush free niche?: 14 brands and 63 sellers compete. The top 5 products take 64% of clicks and top 5 brands hold 79% of demand.
What do buyers complain about in niacin 500mg flush free?: Top complaints mined from reviews: Allergies, Side Effects, Functionality-Overall. The return rate is 0.0%.
When does demand for niacin 500mg flush free peak?: Demand is steady year-round — the busiest month runs 1.2× the quietest.
What does it cost to enter the niacin 500mg flush free niche?: Listings span $6.91–$55.82; the average listing price is $19.27 (sweet spot $15–$100). The average incumbent carries 2,994 reviews — the moat a new listing must climb.