Is amino acids profitable to sell on Amazon United Kingdom?

The niche generates £172K/yr across 27 tracked products. 1 of 3 products launched in the last 360 days are still selling. 90-day search growth is -20.3%. Flapen's verdict: Worth a look (57/100).

How competitive is the amino acids niche?

17 brands and 62 sellers compete. The top 5 products take 48% of clicks and top 5 brands hold 59% of demand.

What do buyers complain about in amino acids?

Top complaints mined from reviews: Dosage, Taste-Overall, Size-Overall. The return rate is 0.1%.

When does demand for amino acids peak?

Demand peaks in Sep; the busiest month runs 1.8× the quietest.

What does it cost to enter the amino acids niche?

Listings span £4.71–£30.73; the average listing price is £13.02 (sweet spot $15–$100). The average incumbent carries 482 reviews — the moat a new listing must climb.

amino acids

Worth a look

Shows low returns (0.1%), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.

Returns

Incredible0.1%

return rate — above 5% kills the launch gate

Brand share

Great59%

top-5 brand share — no brand owns this niche

Review moat

Great481.93

avg incumbent reviews — the moat a new listing must climb

Conversion

Good6.2%

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

Quality gap

Good4.4★

avg incumbent rating — lower means beatable quality

Competition

Good48%

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

Price range

Good£4.71–£30.73

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

Avg price

Good£13.02

avg listing price — sweet spot $15–$100

Market size

Okay£172K

£172K/yr · 214K searches

Growth

Bad-20.3%

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

Signals No Dominant Brand Low Review Barrier

According to Flapen's Amazon United Kingdom niche tracking, amino acids is a £172K/yr Amazon United Kingdom market (214K searches/yr). The top 5 brands hold 59% of demand. Demand peaks in Sep. Verdict: Worth a look — 57/100.

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

amino acids market data

Units sold / yr: 10K–13K; avg 250–500/product
Revenue / yr: £130K–£163K; units × avg price
Conversion rate: 6.2%
Avg BSR: #49
Page quality: 0%
Prime: 100%
Sponsored: 78%
Out of stock: 1.5%
Avg brand age: 56 months
Avg seller age: 160 days

Competition & brand share

The top 5 products take 48% of clicks — established leaders, but buyers still shop beyond them.

Brands

17 rising

Sellers

Top-5 brand share

59%

Top 20: 100%

Top-5 click share

48%

Top 20: 92%

Open market

33%

ALPHA0119%
G&G Vitamins11%
Warrior11%
Applied Nutrition9%
Horbäach8%
swiss bioenergetics8%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -20.3% search growth over the last 90 days.

Peak months: Sep · busiest ÷ quietest = 1.8×

Open Trend

Top amino acids search terms

amino acids78K/yr -14.2%5.7% conv.
amino acid supplements57K/yr -25.0%4.9% conv.
essential amino acids28K/yr -21.1%5.3% conv.
perfect amino20K/yr -15.2%1.2% conv.
amino acid10K/yr -22.7%4.0% conv.
amino acid nutritional supplements13K/yr -45.4%0.5% conv.
amino acids tablets5K/yr -30.1%4.8% conv.
perfect aminos3K/yr -34.0%1.3% conv.

All search terms

Top amino acids 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 24 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Essential Amino Acids 2800mg with BioPerine 180 Vegan Capsules All 9 EAA Amino Acids with All 3 BCAAs Plus 6 More EAAs to Build and Repair Muscle - by Alpha01

ALPHA01£8.614.6★233 rev

Horbäach£8.384.6★54 rev

Total Amino Boost - Full Spectrum - All 20 Amino Acids Including All BCAAs -120 Vegan Capsules with Free Form pre-digested Amino Acids with Advanced Coenzyme Support. No Additives - UK Made

swiss bioenergetics£14.454.2★256 rev

Total Amino - Full Spectrum - All 20 Amino Acids - EAA BCAA - Free Form - 120 Vegan Capsules - Made in the UK by G&G Vitamins

G&G Vitamins£12.354.5★747 rev

Essential Amino Acids Full Spectrum EAA & BCAA Tablets for Muscle Recovery 300 Vegan Pills (60 Servings) High Strength Free Form Supplement with Leucine UK Made - Love Life Supplements

LOVE LIFE SUPPLEMENTS£30.734.5★919 rev

Newest

by launch date

Amino Acids Complex 60 Vegan Capsules All 9 EAA Amino Acids with BCAAs to Build and Repair Muscle Recovery no fillers or Binders

NEO-NUTRITION£7.966 rev

3mo ago

Amino Acid Supplements Full Spectrum All BCAA EAA + Vitamin C & Botanical Blend High Strength Free Form 60 Vegan Capsules | By NutriMali

NutriMali£10.5117 rev

7mo ago

Horbäach£8.3854 rev

11mo ago

Royal Oak Health Full Spectrum Amino Acid Complex | Complete with All 20 EAA & BCAAs in Free Form for Instant Digestion | Essential & Branch Chain Amino Acids Supplement | 60 Vegan Capsules | UK Made

Royal Oak Health£14.0463 rev

1y ago

BCAA Tablets 120 - Branched Chain Amino Acids Enhanced with L-Alanine | Sports Performance Energy & Recovery | 3000mg Amino Acids per Serving 30 Servings

Mr Run£10.5945 rev

1y ago

What buyers say about amino acids

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

What buyers love

Quality-Overall15%

“The product feels well made”

Value For Money9%

“worth noting”

Taste-Overall8%

“have no unpleasant taste or smell”

Ease Of Chewing/Swallowing6%

“They are swallowed easily”

Energy Level5%

“An energy boost naturally”

Advertised Vs Actual Product5%

“As described and arrived on time”

Side Effects4%

“The capsules are easy to swallow with a glass of water, have no unpleasant taste or smell, and are gentle on my stomach with no bloating, discomfort, or unwanted effects”

Nutritional Content4%

“Good quality protein”

Muscle Pain Relief3%

“Helps muscle recovery”

Ease Of Use3%

“making it super easy to use on the go”

What buyers complain about

Dosage11%

“For me, the issue is the size of the B6 dose that would be taken in two capsules, at 20mg it is far in excess of the typical daily requirement”

Taste-Overall11%

“Tastes terrible”

Size-Overall9%

“Size big”

Vitamin3%

“has way too much Vitamin B6”

Functionality-Overall3%

“Doesnt work”

Smell3%

“Stink”

Nutritional Content3%

“It isn't always easy to assess the effectiveness of a supplement that may potentially be beneficial to your well-being”

Quality-Overall2%

“Not the best”

Flavor2%

“Tastes terrible...buy a flavour”

Strength2%

“Too strong, makes my head light”

Common questions

Is amino acids profitable to sell on Amazon United Kingdom?: The niche generates £172K/yr across 27 tracked products. 1 of 3 products launched in the last 360 days are still selling. 90-day search growth is -20.3%. Flapen's verdict: Worth a look (57/100).
How competitive is the amino acids niche?: 17 brands and 62 sellers compete. The top 5 products take 48% of clicks and top 5 brands hold 59% of demand.
What do buyers complain about in amino acids?: Top complaints mined from reviews: Dosage, Taste-Overall, Size-Overall. The return rate is 0.1%.
When does demand for amino acids peak?: Demand peaks in Sep; the busiest month runs 1.8× the quietest.
What does it cost to enter the amino acids niche?: Listings span £4.71–£30.73; the average listing price is £13.02 (sweet spot $15–$100). The average incumbent carries 482 reviews — the moat a new listing must climb.