Niacin
FailShoppers spend an estimated $47K a year here, so Niacin is a Fail.
- Flapen Score
- 43 / 100Ranks 1,437 of 2,035 Health & Personal Care niches · −5 vs the category median of 4843
- Market size
- £47K/yr46K searches / yr
- 90-day growth
- -17.4%search demand this quarter
- Competition
- 75%top-5 click share · 11 brands · 14 sellers
Flapen Score
Niacin against its category
The dotted line is the Health & Personal Care average. Past it, Niacin is stronger. Inside it, weaker.
Market
The Niacin market on Amazon at a glance
Shoppers on Amazon United Kingdom searched for Niacin 46K times last year and spent an estimated £47K. The top 5 brands take 79% of clicks. Demand peaks in Aug–Sep–Oct–Nov. Flapen scores it 43 out of 100, a Fail.
01 · Demand
An estimated 9.2% of those searches ended in a purchase.
Shoppers searched for this 46K times in the last 12 months. That counts every search on Amazon United Kingdom for this niche's terms. An estimated 9.2% of those searches ended in a purchase. Searches in the last 90 days moved -17.4% against the 90 days before. Searches, conversion and average price together put the market at an estimated £47K a year.
- Searches, last 12 months
- 46K
- Growth, 90 days vs prior 90
- -17.4%
- Conversion, latest week
- 9.2%
- Market size, estimated
- £47Ka year
- Peak month
- September2.2× the quietest month
- Top search term
- niacin36K searches a year
02 · Price
A sale here is worth £11.20.
Listings sell for £11.20 on average, from £4.23 to £26.71. Amazon reports units sold in ranges. This niche sold 4K to 5K a year. The average listing sells 250 to 500 of them. At £11.20 that is £3K to £6K a year per listing.
- Average price
- £11.20under the $15 to $100 sweet spot
- Price range
- £4.23–£26.71
- Amazon United Kingdom median price
- £12.12across 27,606 niches
- Units sold a year
- 4K–5K
- Units per listing a year
- 250–500
- Revenue per listing a year
- £3K–£6K
- Returns
- 0.1%of orders · Amazon United Kingdom median 0.6%
03 · Entry bar
The bar here is reviews.
77% of listings pay for placement with sponsored ads. 92% ship with Prime. On an average day, 0.0% of listings are out of stock. The average listing ranks #29 within Vitamins. It carries 1,797 reviews at 4.42 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 77%
- Prime listings
- 92%
- Out of stock, average day
- 0.0%
- Average rank
- #29in Vitamins
- Average rating
- 4.42 starsAmazon United Kingdom average 4.36 stars
- Average reviews
- 1,797per listing
- Listings tracked
- 13
04 · Newcomers
Brands here are settling in.
The brands on the shelf have sold for 54 months on average, so the names here are settling in.
- Launched, last 12 months
- 0
- Successful launches
- 0Amazon's first-year sales bar
- Average brand age
- 54 months
Products
Top Niacin products & what they sell for
The products selling here, as shoppers see them on Amazon. Shelf share and sales are our estimates.
Prices and ratings read from Amazon on Jul 25, 2026. The live listing can differ.
Top sellers
by estimated 90-day click share
Vitamin B3 Niacin 500mg | 90 Vegan Capsules (3 Months Supply) | Flush Free Nicotinamide Supplement (Niacinamide) | Resealable & Recyclable Pouch | by Horbaach
- Price
- £7.15
- Rating
- 4.4/5
- Reviews
- 829
- Age
- 5y ago

Niacin 50mg 120 Tablets | Vitamin B3 Nicotinic Acid Flush Formula | Vegan UK Made | GMP Approved | MOBU (120)
- Price
- £7.38
- Rating
- 4.3/5
- Reviews
- 454
- Age
- 4y ago

Niacin Supplements with Flush Effect B3 Vitamin Supplement Nicotinic Acid B1 Thiamine ALA 120 Capsules Cognitive Function Cholesterol Heart & Energy 50mg Active Form (niacinamide alternative)
- Price
- £19.18
- Rating
- 4.4/5
- Reviews
- 88
- Age
- 1y ago

Nutrivolv Niacin Supplement Tablets | 100mg | Flush Formula | Pure Nicotinic Acid | Reduces Fatigue | Supports Healthy Cholesterol | Vitamin B3 for Men & Women | Vegan | Halal | Kosher | 120 Tablets
- Price
- £6.60
- Rating
- 4.2/5
- Reviews
- 169
- Age
- 4y ago

Nutricost Vitamin B3 Niacinamide 500mg 240 Capsules - Gluten Free Non-GMO Soy Free No Niacin Flush Energy Boost Premium Quality
- Price
- £13.09
- Rating
- 4.6/5
- Reviews
- 18,743
- Age
- 9y ago
Trending
estimated 90-day click momentum
Vitamin B3 Nicotinamide 500mg per Tablet - 180 Tablets - 6 Months Supply
- Price
- £7.55
- Rating
- 4.4/5
- Reviews
- 633
- Age
- 4y ago

Vitamin B3 Niacinamide 500mg 180 Tablets - High Strength - Suitable for Vegans & Vegetarians - Made in UK
- Price
- £8.12
- Rating
- 4.9/5
- Reviews
- 12
- Age
- 2y ago

Vitamin B3 Niacin 500mg | 90 Vegan Capsules (3 Months Supply) | Flush Free Nicotinamide Supplement (Niacinamide) | Resealable & Recyclable Pouch | by Horbaach
- Price
- £7.15
- Rating
- 4.4/5
- Reviews
- 829
- Age
- 5y ago

Vitamin B3 Niacin as Nicotinic Acid 50mg 120 Tablets Flush Effect
- Price
- £6.59
- Rating
- 4.3/5
- Reviews
- 57
- Age
- 2y ago

Nutricost Vitamin B3 Niacinamide 500mg 240 Capsules - Gluten Free Non-GMO Soy Free No Niacin Flush Energy Boost Premium Quality
- Price
- £13.09
- Rating
- 4.6/5
- Reviews
- 18,743
- Age
- 9y ago
Newest
by launch date
Niacin Supplements with Flush Effect B3 Vitamin Supplement Nicotinic Acid B1 Thiamine ALA 120 Capsules Cognitive Function Cholesterol Heart & Energy 50mg Active Form (niacinamide alternative)
- Price
- £19.18
- Rating
- 4.4/5
- Reviews
- 88
- Age
- 1y ago

Vitamin B3 Niacinamide 500mg 180 Tablets - High Strength - Suitable for Vegans & Vegetarians - Made in UK
- Price
- £8.12
- Rating
- 4.9/5
- Reviews
- 12
- Age
- 2y ago

Vitamin B3 Niacin as Nicotinic Acid 50mg 120 Tablets Flush Effect
- Price
- £6.59
- Rating
- 4.3/5
- Reviews
- 57
- Age
- 2y ago

Vitamin B3 Niacin 100ml Liquid Supplements | 100% Pure & Natural Niacin 12.5mg | UK Made & Vegan Friendly | 4 Months Supply | UV Protected Miron Violet Glass | 10 Drops Daily
- Price
- £20.46
- Rating
- 4.3/5
- Reviews
- 55
- Age
- 2y ago

Niacin 50mg 120 Tablets | Vitamin B3 Nicotinic Acid Flush Formula | Vegan UK Made | GMP Approved | MOBU (120)
- Price
- £7.38
- Rating
- 4.3/5
- Reviews
- 454
- Age
- 4y ago
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 75% of clicks. A locked shelf that new listings rarely crack.
Brands
11 flat
Sellers
14
Est. top-5 brand share
79%
Top 20: 100%
Est. top-5 click share
75%
Top 20: 100%
Open market
14%
- Horbäach27%
- MOBU23%
- Bio Mirco11%
- Health4All11%
- NutriVolv8%
- Nutricost7%
- Open — no brand owns it (5 brands, 14%)
Demand
Niacin search demand
Weekly searches over the year, seasonality beneath. Pick a range.
Peak months: Aug, Sep, Oct, Nov · busiest ÷ quietest = 2.2×
Search terms
Top Niacin search terms shoppers use
The exact words shoppers type, with estimated yearly volume, growth, and conversion.
- niacin36K/yr
- nicotinic acid5K/yr
- niacin flush3K/yr
- niacin b32K/yr
Reviews and returns
What reviews say buyers love and hate about Niacin
We read the reviews and the return reasons for every product selling here.
“There was I trying to work out what the hell Im suddenly allergic to”
Every topic
Every topic buyers talk about, one row each.
Red shows the share of negative reviews and green the share of positive reviews, biggest topic first. Open a row to read what they wrote.
18 topics
Keep looking
Related niches
Niches in the same category that score near this one. Research these next.
Best Flapen score
The highest-scoring niches we track right now, across every category.
FAQ
Common Niacin questions
Answered from the same tracked data.
Figures on this page are estimates modeled from public Amazon pages and third-party keyword data. Amazon does not supply them, and no connected seller's data is used. How we handle Amazon data









