Is l tyrosine profitable to sell on Amazon United Kingdom?

The niche generates £273K/yr across 10 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is -7.7%. Flapen's verdict: Skip it (49/100).

How competitive is the l tyrosine niche?

10 brands and 14 sellers compete. The top 5 products take 86% of clicks and top 5 brands hold 86% of demand.

What do buyers complain about in l tyrosine?

Top complaints mined from reviews: Dosage, Functionality-Overall, Side Effects. The return rate is 0.1%.

When does demand for l tyrosine peak?

Demand is steady year-round — the busiest month runs 1.6× the quietest.

What does it cost to enter the l tyrosine niche?

Listings span £4.14–£28.51; the average listing price is £11.39 (sweet spot $15–$100). The average incumbent carries 354 reviews — the moat a new listing must climb.

l tyrosine

Skip it

A concentrated shelf (top 5 take 86% of clicks) — this niche doesn't clear our bar today.

Returns

Incredible0.1%

return rate — above 5% kills the launch gate

Conversion

Incredible16.4%

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

Review moat

Great353.9

avg incumbent reviews — the moat a new listing must climb

Price range

Good£4.14–£28.51

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

Market size

Okay£273K

£273K/yr · 147K searches

Quality gap

Okay4.5★

avg incumbent rating — lower means beatable quality

Avg price

Okay£11.39

avg listing price — sweet spot $15–$100

Brand share

Okay86%

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

Growth

Bad-7.7%

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

Competition

Bad86%

top-5 click share — a locked-up shelf

Signals Low Review Barrier

According to Flapen's Amazon United Kingdom niche tracking, l tyrosine is a £273K/yr Amazon United Kingdom market (147K searches/yr). The top 5 brands hold 86% of demand. Verdict: Skip it — 49/100.

Data updated Jul 25, 2026 · scored weekly · How we score niches

l tyrosine market data

Units sold / yr: 20K–25K; avg 1,500–2,000/product
Revenue / yr: £228K–£285K; units × avg price
Conversion rate: 16.4%
Avg BSR: #836
Page quality: 0%
Prime: 100%
Sponsored: 70%
Out of stock: 0.0%
Avg brand age: 51 months
Avg seller age: 172 days

Competition & brand share

The top 5 products capture 86% of clicks — a locked-up shelf that new listings rarely crack.

Brands

10 rising

Sellers

Top-5 brand share

86%

Top 20: 100%

Top-5 click share

86%

Top 20: 100%

Open market

NEW LEAF PRODUCTS35%
Nutrivo17%
swiss bioenergetics15%
ALPHA0110%
Horbäach9%
Solgar4%
Open — no brand owns it (4 brands, 9%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -7.7% search growth over the last 90 days.

No pronounced peak months · busiest ÷ quietest = 1.6×

Open Trend

Top l tyrosine search terms

l tyrosine61K/yr -0.6%13.5% conv.
l-tyrosine32K/yr -12.5%15.3% conv.
tyrosine22K/yr -8.3%12.9% conv.
ltyrosine5K/yr +33.7%14.5% conv.
l tyrosine 500mg6K/yr -18.0%15.9% conv.
tyrosine supplement5K/yr -28.4%14.1% conv.
l tyrosine 2000mg4K/yr -18.4%15.6% conv.
l-tyrosine 500mg3K/yr -16.5%16.7% conv.
l tyrosine 1000mg5K/yr -37.8%16.9% conv.
l- tyrosine3K/yr -4.1%11.0% conv.

All search terms

Top l tyrosine 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 10 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

L-Tyrosine Supplement 1100mg - Free Form Amino Acid - 120 Vegan Capsules - Fermented High Strength L Tyrosine Supplement - No Artificial Preservatives

NEW LEAF PRODUCTS£8.184.5★133 rev

L Tyrosine 1100mg (Per 2 Capsule Serving) | 120 L-Tyrosine Capsules - 2 Months Supply | Supports Dopamine Focus & Mental Clarity | Vegan Non-GMO & UK Made

Nutrivo£7.014.5★128 rev

L-Tyrosine 500mg 120 Capsules - Pure Amino Acid with No Fillers or Binders or Flow Agents an Amino Acid Nutritional Supplement Suitable for Vegetarians - UK Made

swiss bioenergetics£7.904.4★567 rev

Fermented L-Tyrosine 500mg with BioPerine - 120 Vegan Capsules - Essential Amino Acid Support 120 Day Supply Resealable and Recyclable Pouch by Alpha01

ALPHA01£6.964.7★319 rev

Horbäach£9.544.3★459 rev

Newest

by launch date

L-Tyrosine Supplement 1100mg - Free Form Amino Acid - 120 Vegan Capsules - Fermented High Strength L Tyrosine Supplement - No Artificial Preservatives

NEW LEAF PRODUCTS£8.18133 rev

11mo ago

L Tyrosine 1100mg (Per 2 Capsule Serving) | 120 L-Tyrosine Capsules - 2 Months Supply | Supports Dopamine Focus & Mental Clarity | Vegan Non-GMO & UK Made

Nutrivo£7.01128 rev

1y ago

Bodygenix L-Tyrosine 1000 mg Capsules Amino Acid Pre Workout Supplement for Mental Clarity Focus Alertness Energy Boost - 30 Capsules 1 Month Supply

Bodygenix£4.1433 rev

2y ago

Vegavero£16.06833 rev

3y ago

Now Foods L-Tyrosine 500mg 120 Capsules Lab-Tested Gluten Free Soy Free Non-GMO

NOW£15.41261 rev

3y ago

What buyers say about l tyrosine

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

What buyers love

Quality-Overall20%

“Overall this feels like a quality L-Tyrosine supplement by a reputable brand”

Focus Enhancement16%

“certainly improves my mood”

Value For Money12%

“Amazing value for money”

Energy Level9%

“energy”

Vitamin5%

“Good supplement”

Ease Of Chewing/Swallowing4%

“easy to swallow”

Acid Regulator/Stomach Ache Relief3%

“Bought these as they said its good supplement to help adhd”

Nutritional Content3%

“Good daily supplement”

Advertised Vs Actual Product3%

“A product that delivers what it says it will do”

Ingredients-Overall2%

“comprehensive ingredient information”

What buyers complain about

Dosage23%

“Im not sure that 500 mg will have a noticeable effect”

Functionality-Overall13%

“Didn't help at all”

Side Effects10%

“I started experiencing increased heart rate, heart palpitations and SEVERE headaches”

Energy Level6%

“It's hard to be sure about whether it's improved my energy levels”

Contamination5%

“Contaminated”

Vitamin5%

“L-tyrosine supplements may trigger painful”

Stress/Anxiety5%

“Just fatigue”

Ingredients-Overall3%

“Im not claiming its a miracle product”

Value For Money3%

“Waste of money”

Heart Health3%

“some heart palpitations”

Common questions

Is l tyrosine profitable to sell on Amazon United Kingdom?: The niche generates £273K/yr across 10 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is -7.7%. Flapen's verdict: Skip it (49/100).
How competitive is the l tyrosine niche?: 10 brands and 14 sellers compete. The top 5 products take 86% of clicks and top 5 brands hold 86% of demand.
What do buyers complain about in l tyrosine?: Top complaints mined from reviews: Dosage, Functionality-Overall, Side Effects. The return rate is 0.1%.
When does demand for l tyrosine peak?: Demand is steady year-round — the busiest month runs 1.6× the quietest.
What does it cost to enter the l tyrosine niche?: Listings span £4.14–£28.51; the average listing price is £11.39 (sweet spot $15–$100). The average incumbent carries 354 reviews — the moat a new listing must climb.