How competitive is the Zma niche on Amazon United Kingdom?

20 brands and 41 sellers compete in Zma on Amazon United Kingdom. The top 5 Zma products take 51% of clicks and its top 5 brands hold 65% of demand.

What do buyers complain about in Zma?

Zma buyers on Amazon United Kingdom complain most about Sleep Quality, Magnesium, Functionality-Overall, the themes mined from the niche's reviews. Its return rate is 0.1%.

What does it cost to enter the Zma niche?

Zma sells for £13.12 on average on Amazon United Kingdom, outside our $15–$100 sweet spot. Listings span £4.43–£34.02. The average incumbent carries 2,065 reviews — the moat a new listing must climb.

Zma

Zma shows low returns (0.1%), but soft demand (-33.7% this quarter) keeps it on the watch list.

Flapen Score

Worth a look

This niche Category average

Is Zma profitable on Amazon?

According to Flapen's Amazon United Kingdom niche tracking, Zma is a £254K/yr Amazon United Kingdom market (177K searches/yr). The top 5 brands hold 65% of demand. Verdict: Worth a look — 55/100.

Zma: the Amazon niche in one read

Everything a seller checks before entering, in three answers.

Is the demand real?

Worth a look. Search demand moved -33.7% over the last 90 days and 10.9% of searches end in a purchase.

£254K

revenue / yr

Units sold / yr20K

Search volume / yr-33.7%177K

Conversion rate10.9%

Avg price£13.12

Who owns the niche?

The top 5 brands hold 65% of demand, so 35% of the market is open.

35%

open market share

Brands · sellers20 · 41

Top-5 product click share51%

Open market35%

Avg brand age58 months

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 · 25 products

Top Zma 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

Nutravita ZM+ Supplements for Men & Women - 180 High Strength Tablets (6 Months) - Vegan Supplement Zinc Magnesium Vitamin B6 - Sleep Aid Muscle Recovery Supports Testosterone Levels - UK Made

Price: £7.14
Rating: 4.5/5
Reviews: 801
Age: 2y ago

Nutravita ZMA High Strength - 120 Vegan Capsules - Test Booster - Contributes to Testosterone Levels Normal Muscle Function & Energy Yielding Metabolism - Zinc Magnesium & Vitamin B6

Price: £14.04
Rating: 4.5/5
Reviews: 801
Age: 5y ago

ZM6 High Strength Zinc Magnesium Supplements for Men & Women 180 Capsules

Price: £15.64
Rating: 4.4/5
Reviews: 2,320
Age: 11y ago

ZM6 High Strength Zinc Magnesium Supplements for Men & Women 360 Capsules

Price: £28.12
Rating: 4.4/5
Reviews: 2,320
Age: 8y ago

Optimum Nutrition On ZMA New EU Produced Capsules - Pack of 90

Price: £31.75
Rating: 4.5/5
Reviews: 911
Age: 10y ago

Newest

by launch date

Ultra ZMA Magnesium Bisglycinate Supplement with Zinc & Vitamin B6 (90 Vegan Caps) - High Absorption ZMA Capsules for Men & Women | Supports Sleep Muscle Recovery Energy Immune Health

Price: £15.20
Rating: 4.9/5
Reviews: 13
Age: 8mo ago

Myprotein ZMA Capsules Zinc Magnesium & Vitamin B6 Supports Muscle Recovery Immune Health & Sleep VeganFriendly (90 Count (Pack of 1))

Price: £14.61
Rating: 4.6/5
Reviews: 14
Age: 10mo ago

Applied Nutrition Zinc Magnesium & Vitamin B6 with Ashwagandha Capsules - Natural Support for Hormonal Balance Sleep Support & Stress Relief - 90 Capsules (30 Servings)

Price: £16.34
Rating: 4.2/5
Reviews: 27
Age: 1y ago

StayPrime ZMAN+ Supplements for Men - 60 Capsules - Zinc Magnesium Glycinate Boron Vitamin D & Vitamin B6 - Sleep Support Energy and Muscle Recovery - High Strength

Price: £15.19
Rating: 4.7/5
Reviews: 35
Age: 1y ago

Bulk Zinc & Magnesium Capsules 60 Capsules

Price: £6.03
Rating: 4.7/5
Reviews: 8
Age: 1y ago

Competition: brands, sellers & click share

The top 5 products take 51% of clicks — established leaders, but buyers still shop beyond them.

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

Brands

20 rising

Sellers

Top-5 brand share

65%

Top 20: 100%

Top-5 click share

51%

Top 20: 95%

Open market

31%

Nutravita31%
Iron Labs Nutrition15%
Myprotein7%
Bulk6%
Optimum Nutrition5%
Applied Nutrition5%

Zma demand & seasonality

Weekly search volume, with the niche's key stats alongside.

Volume177KCVR10.9%Products25Brands20Top 5 Brands65%OOS Rate4.7%Rating4.5★Reviews2,065Avg BSR#166

No pronounced peak months · busiest ÷ quietest = 1.4×

Top Zma search terms shoppers use

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

zma100K/yr -25.2%10.4% conv.
zma supplements for men47K/yr -29.9%8.9% conv.
zma tablets6K/yr -49.7%7.4% conv.
zinc magnesium and vitamin b67K/yr -56.0%6.9% conv.
zma supplement10K/yr -64.0%3.8% conv.
zma supplement for women7K/yr -56.7%6.0% conv.

What reviews say buyers love and hate about Zma

What buyers mention most, as a share of all reviews.

What buyers love

81% of reviews

Sleep Quality27%

“sleep more deeply”

Quality-Overall15%

“Good quality and value arrived quickly”

Magnesium10%

“best magnesium”

Value For Money10%

“Fair price”

Advertised Vs Actual Product5%

“As Advertised”

What buyers complain about

61% of reviews

Sleep Quality14%

“still cant sleep”

Magnesium9%

“This magnesium does not work”

Functionality-Overall8%

“It does absolutely nothing”

Acid Regulator/Stomach Ache Relief6%

“Gives you stomach cramps”

Dosage5%

“The dosage is far too high”

Zma return rate & reasons

Why buyers send it back, as a share of all return requests.

0.1%

Return rate

Fixable by listing

The "fixable" share counts expectation-mismatch reasons — size, look, advertised-vs-actual — that better copy and images address.

1Joint Pain

50%

2Magnesium

50%

Common Zma questions

The questions sellers ask about this niche, answered from the tracked metrics.

Flapen scores Zma 55/100 on Amazon United Kingdom — Worth a look. The niche generates £254K/yr across 25 tracked products. 0 of 2 products launched in the last 360 days are still selling. Search demand moved -33.7% over the last 90 days.