Vitamin B3
soft demand (-17.3% this quarter) — Vitamin B3 doesn't clear our bar today.
Flapen Score
Is Vitamin B3 profitable on Amazon?
According to Flapen's Amazon United Kingdom niche tracking, Vitamin B3 is a £139K/yr Amazon United Kingdom market (126K searches/yr). The top 5 brands hold 85% of demand. Demand peaks in Oct. Verdict: Skip it — 44/100.
Vitamin B3: the Amazon niche in one read
Everything a seller checks before entering, in three answers.
Is the demand real?
Not really. Search demand moved -17.3% over the last 90 days and 10.0% of searches end in a purchase.
£139K
revenue / yr
Who owns the niche?
The top 5 brands hold 85% of demand, so 15% of the market is open.
15%
open market share
Is there a way in?
Listing quality. The average product page scores 0/100 on content standards. Incumbents average 4.5★ — the gap to enter on.
0/100
page quality · 15 products
Top Vitamin B3 products & what they sell for
Every tracked product — its share of the shelf, its review moat, and what it sells for.
Top sellers
by 90-day click share
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 Nicotinamide 500mg | 180 Vegan Capsules | High Strength Vitamin B3 Niacin Supplement (Niacinamide) | Flush Free Formula | Suitable for Vegetarians and Vegans | By Carlyle
- Price
- £8.18
- Rating
- 4.3/5
- Reviews
- 414
- 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
Vitamin B3 Nicotinamide (Niacinamide) 500mg No-Flush Niacinamide 90 Vegan Capsules - Resealable and Recyclable Pouch by Alpha01
- Price
- £4.94
- Rating
- 4.3/5
- Reviews
- 214
- Age
- 7y ago
Vitamin B3 Niacin as Nicotinamide 500mg 180 Capsules 6 Months Supply
- Price
- £10.41
- Rating
- 4.5/5
- Reviews
- 2,089
- Age
- 4y ago
Trending
90-day click momentumVitamin B3 Nicotinamide 500mg per Tablet - 180 Tablets - 6 Months Supply
- Price
- £7.55
- Rating
- 4.4/5
- Reviews
- 633
- Age
- 4y 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
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
Vitamin B3 Nicotinamide 500mg 180 Capsules | Flush Free Niacinamide | UK Manufactured | Suitable for Vegans & Vegetarians
- Price
- £11.15
- Rating
- 4.5/5
- Reviews
- 445
- Age
- 7y ago
Vitamin B3 Nicotinamide (Niacinamide) 500mg No-Flush Niacinamide 90 Vegan Capsules - Resealable and Recyclable Pouch by Alpha01
- Price
- £4.94
- Rating
- 4.3/5
- Reviews
- 214
- Age
- 7y ago
Newest
by launch dateVitamin B3 Nicotinamide 500mg | 180 Vegan Capsules | High Strength Vitamin B3 Niacin Supplement (Niacinamide) | Flush Free Formula | Suitable for Vegetarians and Vegans | By Carlyle
- Price
- £8.18
- Rating
- 4.3/5
- Reviews
- 414
- Age
- 2y ago
Vegavero Vitamin B3 Nicotinamide 500 mg | Flush Free Niacinamide | NO Additives Lab-Tested | 180 Capsules | Vegan
- Price
- £13.16
- Rating
- 4.3/5
- Reviews
- 713
- Age
- 3y ago
Bettervits Niacinamide Complex with Vitamin B3 Niacin Marine Collagen and Hyaluronic Acid High-Strength Niacinamide Supplement for Energy Support Natural Vitamin B3 Boost 60 Capsules
- Price
- £28.85
- Rating
- 4.2/5
- Reviews
- 110
- Age
- 4y ago
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 Niacin as Nicotinamide 500mg 180 Capsules 6 Months Supply
- Price
- £10.41
- Rating
- 4.5/5
- Reviews
- 2,089
- Age
- 4y ago
Competition: brands, sellers & click share
The top 5 products capture 76% of clicks — a locked-up shelf that new listings rarely crack.
Brands
12 falling
Sellers
14
Top-5 brand share
85%
Top 20: 100%
Top-5 click share
76%
Top 20: 100%
Open market
12%
- Health4All43%
- Carlyle17%
- Nutricost12%
- ALPHA019%
- Horbäach3%
- Bettervits3%
- Open — no brand owns it (6 brands, 12%)
Vitamin B3 demand & seasonality
Weekly search volume, with the niche's key stats alongside.
Peak months: Oct · busiest ÷ quietest = 1.7×
Top Vitamin B3 search terms shoppers use
The exact queries shoppers type, with yearly volume, growth and conversion.
- vitamin b332K/yr
- nicotinamide17K/yr
- vitamin b3 niacinamide12K/yr
- nicotinamide 500mg7K/yr
- b3 vitamin12K/yr
- niacinamide supplement10K/yr
- b3 nicotinamide 500mg7K/yr
- vitamin b3 nicotinamide 500mg3K/yr
- vitamin b3 niacin5K/yr
- vit b33K/yr
What reviews say buyers love and hate about Vitamin B3
What buyers mention most, as a share of all reviews.
What buyers love
87% of reviews“Worth every penny”
“Good vitamin”
“Its good produ”
“Item description accuracy”
“Increased energy”
What buyers complain about
81% of reviews“Confusing? Nicotinamide or Niacin? This says Nicotinamide on the front but Niacin on the back.”
“Very big capsules”
“very low potency”
“Red, itching rash”
“have to say no change at all in skin colour”
Vitamin B3 return rate & reasons
Why buyers send it back, as a share of all return requests.
0.1%
Return rate
57%
Fixable by listing
The "fixable" share counts expectation-mismatch reasons — size, look, advertised-vs-actual — that better copy and images address.
Common Vitamin B3 questions
The questions sellers ask about this niche, answered from the tracked metrics.
Related niches
Same-category niches scoring near this one — the next ones worth researching.
Best Flapen score
The highest-scoring niches we track right now, across every category.
