Is hmb profitable to sell on Amazon United Kingdom?

The niche generates £53K/yr across 15 tracked products. 0 of 2 products launched in the last 360 days are still selling. 90-day search growth is -11.6%. Flapen's verdict: Skip it (47/100).

How competitive is the hmb niche?

12 brands and 26 sellers compete. The top 5 products take 69% of clicks and top 5 brands hold 78% of demand.

What do buyers complain about in hmb?

Top complaints mined from reviews: Taste-Overall, Leak-Proof, Side Effects. The return rate is 0.1%.

When does demand for hmb peak?

Demand is steady year-round — the busiest month runs 1.5× the quietest.

What does it cost to enter the hmb niche?

Listings span £4.47–£26.30; the average listing price is £13.24 (sweet spot $15–$100). The average incumbent carries 176 reviews — the moat a new listing must climb.

hmb

Skip it

A small market ($53K/yr) — this niche doesn't clear our bar today.

Returns

Incredible0.1%

return rate — above 5% kills the launch gate

Review moat

Great176.2

avg incumbent reviews — the moat a new listing must climb

Conversion

Great7.3%

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

Avg price

Good£13.24

avg listing price — sweet spot $15–$100

Quality gap

Good4.4★

avg incumbent rating — lower means beatable quality

Price range

Good£4.47–£26.30

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

Brand share

Okay78%

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

Competition

Okay69%

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

Growth

Bad-11.6%

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

Market size

Bad£53K

£53K/yr · 55K searches

Signals Low Review Barrier

According to Flapen's Amazon United Kingdom niche tracking, hmb is a £53K/yr Amazon United Kingdom market (55K searches/yr). The top 5 brands hold 78% of demand. Verdict: Skip it — 47/100.

Data updated Jul 24, 2026 · scored weekly · How we score niches

hmb market data

Units sold / yr: 5K–6K; avg 250–500/product
Revenue / yr: £66K–£79K; units × avg price
Conversion rate: 7.3%
Avg BSR: #1,157
Page quality: 0%
Prime: 80%
Sponsored: 73%
Out of stock: 10.1%
Avg brand age: 59 months
Avg seller age: 165 days

Competition & brand share

The top 5 products take 69% of clicks — established leaders, but buyers still shop beyond them.

Brands

12 rising

Sellers

Top-5 brand share

78%

Top 20: 100%

Top-5 click share

69%

Top 20: 100%

Open market

16%

Mr Run24%
Applied Nutrition21%
Bulk17%
ALPHA018%
OLIMP SPORT NUTRITION8%
Nutra Science6%
Open — no brand owns it (6 brands, 16%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -11.6% search growth over the last 90 days.

No pronounced peak months · busiest ÷ quietest = 1.5×

Open Trend

Top hmb search terms

hmb30K/yr -9.2%8.6% conv.
hmb supplements18K/yr -28.7%7.4% conv.
hmb powder8K/yr +25.8%8.8% conv.

All search terms

Top hmb 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 15 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Mr Runs HMB - Muscle Strength & Fitness 1000mg per Serving - Protect from Muscle Loss During Calorie Cutting Ageing or Inactivity - 120 Capsules 60 Servings

Mr Run£13.234.4★286 rev

Applied Nutrition HMB Supplement - HMB 500mg Capsules Metabolite of Leucine for Muscle Growth & Repair (120 Capsules - 60 Servings)

Applied Nutrition£9.384.3★179 rev

Bulk HMB Powder 500 g

Bulk£15.924.4★672 rev

HMB 650mg with BioPerine High Strength Calcium HMB Beta-Hydroxy Beta-Methylbutyrate Supplement 90 Vegan Capsules Resealable and Recyclable Pouch by Alpha01

ALPHA01£8.264.5★67 rev

HMB Anabolic Muscle Growth Supplement 1 000mg HMB with Vitamin D 120 Vegan Capsules 2 Month Supply Supports Strength Repair & Recovery

Nutra Science£16.644.4★18 rev

Newest

by launch date

Applied Nutrition - HMB Powder - 3000mg Pure Formula - Best Leucine Metabolite - Best Muscle Support Supplement - Supports Recovery & Training - (200g 67 Servings) (Unflavoured)

Applied Nutrition£14.101 rev

1mo ago

HMB Anabolic Muscle Growth Supplement 1 000mg HMB with Vitamin D 120 Vegan Capsules 2 Month Supply Supports Strength Repair & Recovery

Nutra Science£16.6418 rev

5mo ago

Freak Athletics HMB Supplement - 1000mg Serving HMB 500mg Capsules Metabolite of Leucine for Muscle Growth & Repair - 120 Capsules 60 Servings

Freak Athletics£11.416 rev

1y ago

HMB Pro 1 000mg with Vitamin D (Maximum Absorption) 2 Month Supply 120 HMB Capsules Muscle Growth Supplements Muscle Strength & Repair HMB Supplement

Insynergy Labs£18.5992 rev

1y ago

Mr Runs HMB - Muscle Strength & Fitness 1000mg per Serving - Protect from Muscle Loss During Calorie Cutting Ageing or Inactivity - 120 Capsules 60 Servings

Mr Run£13.23286 rev

4y ago

What buyers say about hmb

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

What buyers love

Quality-Overall13%

“Good combination”

Value For Money11%

“Exceptional Value: Offering 66 servings in a compact 100g pouch makes this an incredibly cost-effective addition to a supplement stack”

Nutritional Content10%

“Boost protein”

Vitamin8%

“This one keeps things quite straightforward with HMB paired with vitamin D”

Ease Of Chewing/Swallowing6%

“easy to take with water”

Muscle Pain Relief5%

“1000MG STRENGTH TO SUPPORT MUSCLE STRENGTH, REPAIR AND RECOVERY”

Ease Of Use5%

“so far its been easy enough to stick with”

Ingredients-Overall3%

“I like how simple it is ingredient-wise”

Vegan/Organic3%

“Dietary Friendly: Fully compatible with Vegan, Vegetarian, and Keto lifestyles”

Dosage3%

“the 1000mg dose is good”

What buyers complain about

Taste-Overall7%

“Theres no real taste to them”

Leak-Proof6%

“was leaking somehow from the top”

Side Effects6%

“Side effects”

Functionality-Overall6%

“Had little effect”

Dosage4%

“What caught me out is the dose - 1,000mg a day is only a third of what most studies use for real results”

Size-Overall3%

“The capsules are relatively large”

Adhesion/Stickiness3%

“sticky to taste”

Burnt/Roasted/Overbaked3%

“Capsules tasted like burning plastic possibly a bad batch”

Advertised Vs Actual Product3%

“The picture on this advert shows 100% HMB with no calcium”

Calcium3%

“Excess calcium over prolonged periods can cause organ damage”

Common questions

Is hmb profitable to sell on Amazon United Kingdom?: The niche generates £53K/yr across 15 tracked products. 0 of 2 products launched in the last 360 days are still selling. 90-day search growth is -11.6%. Flapen's verdict: Skip it (47/100).
How competitive is the hmb niche?: 12 brands and 26 sellers compete. The top 5 products take 69% of clicks and top 5 brands hold 78% of demand.
What do buyers complain about in hmb?: Top complaints mined from reviews: Taste-Overall, Leak-Proof, Side Effects. The return rate is 0.1%.
When does demand for hmb peak?: Demand is steady year-round — the busiest month runs 1.5× the quietest.
What does it cost to enter the hmb niche?: Listings span £4.47–£26.30; the average listing price is £13.24 (sweet spot $15–$100). The average incumbent carries 176 reviews — the moat a new listing must climb.

hmb